Pelco LRD41C21 and LRD41C22 Receiver User manual

Brand: Pelco

Model: LRD41C21 and LRD41C22 Receiver

Category: Security cameras

Type: User manual

This manual is also suitable for

LRD41C22

LRD41C21/22-*

Legacy

Series

Receiver

Installation

Operation Manual

C557M (10/99)

Pelco • 3500 Pelco Way • Clovis, CA 93612-5699 USA • www.pelco.com

In North America and Canada: Tel (800) 289-9100 or FAX (800) 289-9150

International Customers: Tel +1 (559) 292-1981 or FAX +1 (559) 348-1120

2 Pelco Manual C557M (10/99)

CONTENTS

Section Page

1.0 GENERAL .................................................................................................. 5

1.1 IMPORTANT SAFEGUARDS AND WARNINGS ............................... 5

1.2 CERTIFICATIONS ............................................................................. 5

2.0 DESCRIPTION ..........................................................................................6

3.0 INSTALLATION ..........................................................................................9

3.1 INSTALLING CABLING TO WALL MOUNT ...................................... 10

3.1.1 Rear Entry Cabling ...............................................................10

3.1.2 Rear Entry with Conduit ........................................................ 10

3.1.3 Bottom Entry Cabling ............................................................11

3.1.4 Bottom Entry with Conduit ....................................................11

3.2 INSTALLING SWITCH BRACKET .................................................... 11

3.3 INSTALLING RECEIVER MOUNTING HARDWARE ........................ 14

3.4 INSTALLING THE RECEIVER/DRIVER BOX ................................... 14

3.4.1 Pan/Tilt Connection .............................................................. 15

4.0 OPERATION ............................................................................................. 16

4.1 FEATURES ....................................................................................... 16

4.1.1 Control Without Video ...........................................................16

4.1.2 Transient Suppression .......................................................... 16

4.2 LRD41 VOLTAGE SETTINGS ...........................................................17

4.3 PREPOSITIONING ........................................................................... 18

4.4 ALARMS ........................................................................................... 18

4.5 AUXILIARY FUNCTIONS ................................................................. 18

4.6 AUTO/RANDOM SCAN OPERATION .............................................. 20

4.7 TEST LOCAL CONTROL “TLC” ....................................................... 20

4.8 PAN/TILT VOLTAGE SETTINGS ....................................................... 21

4.9 RESET .............................................................................................. 21

4.10 LRD41 ADDRESS SELECTION SWITCH SETTINGS ..................... 21

4.11 LEGACY

37-PIN CABLE ASSIGNMENTS ...................................... 27

5.0 TROUBLESHOOTING .............................................................................. 28

6.0 MAINTENANCE ........................................................................................ 29

7.0 SPECIFICATIONS .................................................................................... 30

8.0 WARRANTY AND RETURN INFORMATION ........................................... 32

Pelco Manual C557M (10/99) 3

REVISION HISTORY

Manual # Date Comments

C557M 4/97 Original version.

5/98 Added certifications. Changed pagination.

5/99 Revised switch settings in Table C for addresses 24,

56, 88, 120, 152, 184, 216 and 248.

10/99 Revised Section 4.6 to include preset operation. Added

Section 4.9. Changes made per ECO 99-5334.

Changed value of F1 from 1A to 2A for LRD41C21-1

per ECO 99-5613.

LIST OF ILLUSTRATIONS

Figure Page

1 Fully Populated LRD41CXX-* Receiver/Driver .................................. 8

2 Mounting Receiver/Driver Box Into LWM41 Wall Mount .................... 9

3 Arm Rear Entry Locations ................................................................ 10

4 Switch Bracket (Front View) ..............................................................12

5 Switch Bracket Power Terminal Connections ....................................12

6 Switch Bracket Installation ................................................................ 13

7 Receiver Box Mounting Hardware .................................................... 14

8 Receiver/Driver Box Cable Connectors ............................................ 15

9 Assembly Layout for Receiver/Driver Board (PCB9000233 Shown) . 17

10 Preposition Alarm Wiring .................................................................. 18

11 Sample Aux Function Wiring Diagram .............................................. 18

12 Connector Wiring Pin-Outs ............................................................... 19

13 37-pin Connector Wiring ................................................................... 27

LIST OF TABLES

Table Page

A Voltage Settings ................................................................................17

B Address Switch Settings for SW *P-Type Control ............................. 21

C Address Switch Settings for SW *D-Type Control ............................. 22

4 Pelco Manual C557M (10/99)

Description Item Qty

The LRD unit itself–either

the LRD41C21-1,2,3

or the LRD41C22-1,2,3

The switch bracket

(customer installed) used to

bring in power to the LRD

unit

Four position connector for

interfacing with RS422

communication connector

on LRD

9-pin “quick-connect/

disconnect” connector for

interfacing with the AUX/ALM

connector on the LRD

1 set of 2

There are two functional

fuses–one LRD fuse and one

enclosure fuse for each unit

on all models

PARTS PICTOGRAPH **

* TO SEE THE MATING CONNECTOR FOR THE ITEM SHOWN, REFER TO FIGURE 12.

** For those who need AUX/ALARM interface capabilities, a kit is available (see Section 7.0 under Optional Accessories).

*** The items pictured above represent a typical shipment configuration for an LRD41 model. The above list is meant to be informative

and is not an exclusive grouping of items sent (additional minor hardware may also accompany a shipment).

(See Figure 6)

(See Figure 1)

0**

Pelco Manual C557M (10/99) 5

Please thoroughly familiarize

yourself with the informa-

tion in this manual prior

to installation and operation.

1.0 GENERAL

1.1 IMPORTANT SAFEGUARDS AND WARNINGS

Prior to installation and use of this product, the following WARNINGS should be

observed.

1. Installation and servicing should only be done by qualified service personnel

and conform to all local codes.

2. Only use replacement parts recommended by Pelco.

3. After replacement/repair of this unit’s electrical components, conduct a resis-

tance measurement between line and exposed parts to verify the exposed

parts have not been connected to line circuitry.

4. Wiring colors for AC adhere to current “international” standards: Brown for

main power, Blue for neutral and Green-Yellow for GND.

The product and/or manual may bear the following marks:

This symbol indicates that dangerous voltage constituting a

risk of electric shock is present within this unit.

This symbol indicates that there are important installation, op-

eration and/or and maintenance instructions in the literature

accompanying this unit.

CAUTION:

RISK OF

ELECTRIC SHOCK.

DO NOT OPEN.

CAUTION:

TO REDUCE THE RISK OF ELECTRICAL SHOCK,

DO NOT REMOVE COVER. NO USER-

SERVICEABLE PARTS INSIDE. REFER SERVICING

TO QUALIFIED SERVICE PERSONNEL.

1.2 CERTIFICATIONS

These products are CE and FCC, Class A compliant.

Applicable directives/standards:

• 93/68/EEC–CE Mark Directive

89/336/EEC, 92/31/EEC–Electromagnetic Compatibility (EMC) Directives

73/23/EEC–LVD Directive

• FCC–47 CFR, Part 15, Subpart B, Class A

NOTE:

This equipment has been

tested and found to comply with the lim-

its of Class A digital device, pursant to

part 15 of the FCC rules. These limits

are designed to provide reasonable

protection against harmful interference

when the equipment is operated in a

commercial environment. This equip-

ment generates, uses, and can radiate

radio frequency energy and, if not

installed and used in accordance with

the instructions manual, may cause

harmful interference to radio commu-

nications. Operation of this equipment

in a residential area is likely to cause

harmful interference in which case the

user will be required to correct the

interference at his own expense.

6 Pelco Manual C557M (10/99)

2.0 DESCRIPTION

Nomenclature Breakout

Listed below is the relationship of LRD Model numbers discussed in this manual to

the various options, features and functions that those position-specific numbers

represent.

L R D 41 C X X - *

Receiver/Driver * =1=120 VAC

Operational 2 = 24 VAC

Input Voltage 3 = 230 VAC

Speed X = 1 = FIXED

2 = VARIABLE SPEED (VS)

Presets X = 2 = PRESET POSITIONS (PP)

Communication

Type C = Combined–Coax and RS422. All

models of receiver/driver are

hardwired for both Coax and

RS422. Use the communication

type most convenient for your

installation, just remember that

you cannot use both control

types within the same unit at the

same time.

The LRD41Xxx-x model number reflects the options supported by the receiver/

driver. Reference the breakout diagram above and compare it with the following list

of receiver/driver models:

LRD41C21-*: Coaxitron

or RS422 controlled, fixed speed, Auto/Random

scan, 64 presets, 8-alarm inputs, two relay output auxiliaries,

one alarm output.

LRD41C22-*: Coaxitron

or RS422 controlled, variable speed, Auto/Random

scan, 64 presets, 8-alarm inputs, two relay output auxiliaries,

one alarm output.

A discussion of receiver/driver features and operational functions is listed in the

next subsection. An expanded discussion of individual features occurs after the

section on installation.

NOTE:

The (-*) suffix refers to P/T

and Receiver/Driver operational input

voltage specifications. For a complete

table of voltage values for all models,

refer to Table A.

NOTE:

Alarm and Aux

functions can be enabled

through the use of the

LRD41C-CONNKIT (see

Section 7.0 under Optional

Accessories).

Pelco Manual C557M (10/99) 7

FIXED SPEED – LRD41C21-*

The LRD41C21-* Receiver/Driver is compatible with either Coaxitron

control sys-

tems utilizing the standard 15-bit command protocol and the extended 32-bit com-

mand protocols or with Pelco’s serial RS422 control system utilizing “D” or “P” type

protocols.

The Coaxitron

portion of the receiver/driver operates on the unique principle of

transferring control data and video on the same line. A train of pulses containing

control data is superimposed on the vertical blanking interval of the video signal.

This transmitted train of control data can originate from a variety of Pelco transmit-

ter systems, including the CM7500, CM8500, CM9500, MPT9500 and standard

Coaxitron

controllers.

The LRD41C21-* fixed series is capable of the following operational functions:

LRD41C “21” Type Operational Functions

1. Pan Left 5. Zoom In 9. Iris Open

2. Pan Right 6. Zoom Out 10. Iris Close

3. Tilt Up 7. Focus Near 11. Auto Random Scan

4. Tilt Down 8. Focus Far

Additional receiver/driver features include:

• 64 presets • Adjustable Lens Voltages

• 8 inputs for preset Alarms • Control Without Video

• 1 Alarm Out • Cam Sync

• 2 Relay Outputs: • Transient Suppression

Aux1 (available to user) • NTSC or PAL video

Aux2 (available to user) • Test Local Control Capability

• Aux3 (not available) • Serial Comm Port (RS422)

• Aux4 (dedicated wiper control)

• Self Test Diagnostics

VARIABLE SPEED – LRD41C22-*

The LRD41C22-* Receiver/Drivers support the same communication controls as

the LRD41C21-*.

The LRD41C22-* variable series is capable of the following operational functions:

LRD41C “22” Type Operational Functions

1. Pan Left 5. Zoom In 9. Iris Open

2. Pan Right 6. Zoom Out 10. Iris Close

3. Tilt Up 7. Focus Near 11. Auto Random Scan

4. Tilt Down 8. Focus Far

Additional receiver/driver features include:

• 64 presets • Adjustable Lens Voltages

• 8 inputs for preset Alarms • Control Without Video

• 1 Alarm Out • Cam Sync

• 2 Relay Outputs: • Transient Suppression

Aux1 (available to user) • NTSC or PAL video

Aux2 (available to user) • Test Local Control Capability

• Aux3 (not available) • Serial Comm Port (RS422)

• Aux4 (dedicated wiper control) • Full PTZ Variable speed control

• Self Test Diagnostics

8 Pelco Manual C557M (10/99)

Figure 1. Fully Populated LRD41CXX-* Receiver/Driver

LRD41CXX-* RECEIVER/DRIVER

A fully populated receiver/driver (meaning all possible variations of connectors and

their locations) is illustrated in Figure 1.

TLC

ALARM/AUX CONNECTOR

RS422 CONNECTOR

PCB9000233 (AC DRIVER)

LRD41C21

PCB9000234 ( DC DRIVER)

LRD41C22

P3 P4

ADDRESS SELECT

DIP-SWITCH

LRD FUSE (F1)

ENCLOSURE

FUSE (F2)

37-PIN CPC

CONNECTOR

POWER ON

LED

VIDEO IN

(VARISPEED MODELS)

ADDRESS SELECT

SWITCH ACCESS

TLC

ACCESS

MOUNTING NOTCH

CAMERA

SYNC BNC

VIDEO

OUT BNC

POWER

CONNECTOR

TRANSFORMER

MOUNTING

HARDWARE

PCB9000232

FRONT

PANEL

AREA

REAR

PANEL

AREA

LENS VOLTAGE

POT ADJUST

ACCESS

LENS VOLTAGE

POT ADJUST

Pelco Manual C557M (10/99) 9

Figure 2. Mounting Receiver/Driver Box Into LWM41 Wall Mount

3.0 INSTALLATION

LRD41 receiver/driver installation is usually just part of a larger system installation

that includes the prior routing of power and other cable wiring (Coax, Alarm and

Aux) to the openings where they will be used. To install a receiver/driver at any one

location, perform the following steps (the step sequence is only summarized below;

“fleshed” out instructions for each step are referred to by section number):

1. Assemble small hardware items such as glands, gasket, plates and receiver/

driver anchoring hardware that will be needed during the installation.

2. Mount the LWM41 (Legacy

Wall Mount) into which the LRD41 receiver/driver

will be installed. Refer to the LWM41 manual (C283M) that accompanied your

unit for installation instructions.

3. After mounting the LWM41, route the appropriate cables and wiring into the

LWM41 (see Section 3.1).

4. Attach input power cable leads to the bracket switch and mount the bracket

switch on the LWM41 (see Section 3.2 ).

5. Connect applicable cables, (e.g., Coax) and wires (e.g., Alarm and Aux) to

their provided external mating connectors (if applicable) in preparation for at-

taching these connectors to their proper mating connectors on the LRD Rear

Panel itself (see Section 3.4 ).

6. Install the LRD41 receiver/driver into the LWM41 (see Section 3.3 and 3.4).

TOOLS FOR INSTALLATION

These will be needed for attaching the power connections to the switch bracket

terminal block.

It is important for cable routing purposes that the steps be followed in their recom-

mended sequential order.

• Small standard-head screwdriver

• 5/16-inch hex wrench

NOTE:

All directional references, un-

less otherwise noted, assume the

mount has been properly installed on

a suitable mounting surface, and that

the installer is looking straight at the

mount from the nose back toward the

mounting plate.

NOTE:

In bottom-entry/gland instal-

lations, install the BNC connectors to

the video out/sync cables only after

the cable has been threaded through

the glands. The BNC connectors will

not fit through the PG-13 glands.

GASKET

SWITCH

BRACKET

RECEIVER/

DRIVER

THUMBNUT

NYLON

WASHER

ANCHOR

SS WASHER

GASKET

(OPTIONAL)

COVER PLATE

(OPTIONAL)

GLAND

PLATE

(OPTIONAL)

BLOCK-OFF

PLATE

(OPTIONAL)

10 Pelco Manual C557M (10/99)

Figure 3. Arm Rear Entry Locations

3.1 INSTALLING CABLING TO WALL MOUNT

The LWM41 mount provides a great deal of flexibility in installations. Listed below

are the most common configurations for bringing the cabling into the LWM41 mount.

In each case, note that the supplied gaskets, glands and block-off plates must be

used appropriately to achieve a NEMA 4 rating.

3.1.1 Rear Entry Cabling

Cabling can be brought into the LWM41 directly from a wall into the rear of the

mount arm. In the absence of conduit, the provided gasket must be used to form a

seal. This is especially important when mounting against a rough surface.

1. Pull the cabling into and through the mount allowing enough slack to make all

connections (preferably 4 to 6 inches).

2. Proceed with the connections in Section 3.2.

3.1.2 Rear Entry with Conduit

Cabling can be brought into the LWM41 through the rear of the mount, in conduit.

The provided conduit block-off plate must be used in conjunction with the gasket to

form an appropriate seal.

1. Secure the cable conduit to the block-off plate.

2. Pull the cabling into and through the mount allowing enough slack to make all

connections (preferably 4 to 6 inches).

3. Proceed with the connections in Section 3.2.

CHASSIS GROUND WIRE (PART OF

THE LWM) IS ATTACHED TO THE LRD

SWITCH BRACKET DURING ITS IN-

STALLATION (REFER TO SECTION 3.2

AND FIGURE 5)

APPROXIMATE LOCATION

OF WIRE

IMPORTANT:

Using

Figure 3, orient the input

wiring so that the power

cable feeds (either from

the wall, or through the

glands on the bottom of

the mount) into the

LEFT

side of the mount, and the

video, sync aux/alarm &

RS422 cables/wires feed

into the

RIGHT

side of the

mount.

Pelco Manual C557M (10/99) 11

3.1.3 Bottom Entry Cabling

Cabling can enter the LWM41 through the bottom of the mount arm. The cable

glands and gland plate must be used to form a seal.

1. Remove the cover plate from the bottom of the mount arm.

2. Thread the cabling through the glands/gland plate.

3. Feed the cable through the mount, leaving adequate slack for connections

(preferably 4 to 6 inches).

4. Then tighten the glands and secure the gland plate into place on the bottom of

the mount.

5. Proceed with the connections in Section 3.2.

3.1.4 Bottom Entry with Conduit

Cabling contained in conduit can enter the LWM41 through the bottom of the mount

arm. The gland plate (with glands removed) must be used to form a seal.

1. Remove the glands from the gland plate.

2. Secure the conduit to the gland plate.

3. Feed the cable through the mount, leaving adequate slack for connections

(preferably 4 to 6 inches).

4. Secure the gland plate into place on the bottom of the mount.

5. Proceed with the connections in Section 3.2.

3.2 INSTALLING SWITCH BRACKET

Before installing the switch bracket (see Figure 4) into the LWM41 wall mount, the

power and video cables must be routed through the mount (as explained in Section

3.1), and the power leads need to be connected to the power switch terminal block

on the switch bracket.

To connect power to the switch terminal block, you will need a small standard screw-

driver, and a 5/16-inch hex wrench. Perform the following step(s):

1. Connect the leads from the power cable to the switch bracket terminal block

as shown in Figure 5. For 120 VAC and 230 VAC, make sure the ground is

securely connected. Note Figure 3 and be certain to install chassis GND wire

from LWM to the Switch Bracket as indicated in Figure 5.

After the power connections have been made, you are now ready to secure the

Switch Bracket into place.

2. With the cable retracted, hook the left securing notch on the switch bracket

over the left tab on the LWM and position the switch bracket as shown in

Figure 6.

3. Hold and press the switch bracket up against the roof of the arm to depress

the bow spring and at the same time rotate the entire switch (as shown), so

that the remaining securing notch located on the right side of the switch bracket

moves toward the right tab on the arm until the notch and tab engage

4. Make sure the tab “clicks” into the securing notch of the bracket for a secure fit.

The fit should be nice and snug, with no lateral movement, once the unit is in

place.

NOTE:

In bottom-entry/gland instal-

lations, install the BNC connectors to

the video out/sync cables only after

the cable has been threaded through

the glands. The BNC connectors will

not fit through the PG-13 glands.

NOTE:

The switch bracket will even-

tually be mounted to the back end of

the mount as shown in Figure 6. To

preposition the bracket for mounting

(after performing step 1), move the

bracket into the arm while extracting

the power cable back out of the

mount. If the cable cannot be re-

tracted in this manner, push it into the

cavity behind the hinge base.

NOTE:

The power connector clicks

and locks into place. After making the

connection, turn the Power Switch

ON. The power LED on the front of

the LRD should be LIT.

Do not use a gland sealing

compound at this time. You

may need to slide the ca-

bling back and forth through

the glands during installa-

tion.

12 Pelco Manual C557M (10/99)

Figure 4. Switch Bracket (Front View)

Figure 5. Switch Bracket Power Terminal Connections

*** Wire color designations use standard CE color designations of Brown for “main power” or “hot”, Blue for

“Neutral” and Green-Yellow for “GND”. Functional UL color equivalents would be Black=Brown, White=Blue and

Green=Green-Yellow.

COPPER BOW SPRING MECHANICALLY SECURES AND

HELPS MAINTAIN THE SWITCH’S ENGAGEMENT WITH

THE TABS ON THE LWM THROUGH SPRING TENSION.

POWER CABLE INPUTS (CUSTOMER FUNCTION)

POWER CONNECTOR

(CONNECTS TO REAR

CONNECTOR ON

LRD41 RCVR/DRVR)

BROWN

BLUE

*** GREEN-YELLOW

CHASSIS GROUND WIRE FROM LWM AS-

SEMBLY (PART OF THE LWM ASSEMBLY IT-

SELF) TO BE ATTACHED (AS ILLUSTRATED)

DURING SWITCH BRACKET INSTALLATION.

SECURING

NOTCHES

POWER CONNECTOR

Pelco Manual C557M (10/99) 13

Figure 6. Switch Bracket Installation

LWM WALL MOUNT

POSITION SWITCH AS

SHOWN WITH LEFT SECUR-

ING NOTCH ON SWITCH

BRACKET ENGAGING LEFT

EAR TAB ON THE LWM.

GENTLY, BUT FIRMLY PRESS

SWITCH AGAINST UPPER

OR BACK WALL OF LWM

(BOW SPRING ON SWITCH

[NOT SHOWN] WILL PRESS

AGAINST BACK WALL) AND

AT THE SAME TIME ROTATE

SWITCH IN CLOCKWISE DI-

RECTION UNTIL SECURING

NOTCH ON RIGHT SIDE OF

SWITCH ENGAGES RIGHT

EAR TAB OF LWM.

ONCE ENGAGED, THE FIT

SHOULD BE NICE AND

SNUG WITH NO LATERAL

MOVEMENT.

SECURING

NOTCH ON LEFT

SIDE OF SWITCH

LEFT EAR TAB

ON LWM

14 Pelco Manual C557M (10/99)

Figure 7. Receiver Box Mounting Hardware

KNURLED THUMBNUT

5/16 HEX ANCHOR

NYLON WASHER

STAINLESS STEEL WASHER

3.3 INSTALLING RECEIVER MOUNTING HARDWARE

The receiver box mounts to the inside of the mount arm access panel by setting

over an anchor stud and thumbnut. When installing the anchor, thumbnut and ap-

propriate washers to the studs on the access panel, make sure the hardware is

positioned correctly as shown in Figure 7.

1. Install the receiver mounting hardware as shown in Figure 7. Using a supplied

flat washer, tighten the 5/16 Hex anchor on the smaller stud located near the

inside center of the access panel.

2. Install the supplied nylon washer on the longer stud (located toward the front

of the access panel) and turn the supplied knurled thumbnut until the threads

of the stud are exposed. The receiver is now ready to be installed.

3.4 INSTALLING THE RECEIVER/DRIVER BOX

To install the receiver/driver box into the LWM41 Legacy

wall mount arm, perform

the following steps.

BEFORE MOUNTING THE RECEIVER/DRIVER BOX TO THE ACCESS

PANEL ON THE LWM, CONNECT ALL APPLICABLE CABLES

(Video,

Alarms, Aux) and the Switch Bracket power connector to the rear of the LRD41

receiver/driver box (see Figures 2, 6 and 7).

2. Mount the receiver/driver box to the access panel by simply aligning the two

(2) mounting holes on the bottom of the receiver/driver box with the anchor

and thumbnut hardware on the access panel (see Figure 7).

3. After aligning the mounting holes/studs, simply slide the receiver/driver box

down over the anchor and thumbnut and attach the box securely.

4. Tighten the locking thumbnut on the forward-most stud to secure the box into

place. Make sure the thumbnut is very tight.

NOTE:

Once the box is mounted,

you cannot see the rear RECEIVER/

DRIVER connectors; however, once

you are familiar with the connector

types and locations, you should be

able to attach the connectors located

on the rear of the RECEIVER, after

the box is mounted (steps 2, 3, and

4) rather than before.

Pelco Manual C557M (10/99) 15

3.4.1 Pan/Tilt Connection

After the receiver/driver box has been installed to the access panel with the proper

connections made as previously noted, the Legacy

37-pin, pan/tilt connector can

be connected to the receiver/driver box. With the 37-pin connector, all enclosure,

accessory, camera video (as well as Camera Sync), lens and P/T connections are

made.

NOTE:

REAR PANEL connections

should be made (as explained in Sec-

tion 3.4, step 1), before mounting the

receiver/driver box to the access

panel on the LWM.

NOTE:

The LRD41 series of receiver/

drivers accommodates an additional

electrical (coax) connection to the

camera for Camera Sync, which is

necessary when multiple cameras re-

quire frame synchronization. If used,

this cable should also be connected

before mounting the receiver/driver

box to the access panel on the LWM.

Figure 8. Receiver/Driver Box Cable Connectors

VIDEO OUT

CAMERA SYNC

VIDEO OUT

CAMERA SYNC BNC

LRD41C21/22-*

POWER LED

TLC

CONNECTOR

37-PIN CONNECTOR

MOUNTING

NOTCH

ADDRESS

DIP-SWITCH

(SEE TABLE 2,

SECTION 4.9

FOR SETTINGS)

LRD FUSE

ENCLOSURE FUSE

POWER LED

ALARM & AUX

CONNECTOR

RS422 INPUT

CONNECTOR

LRD FUSE

(F1), INPUT POWER

ENCLOSURE

FUSE (F2)

SWITCH

BRACKET

POWER

CONNECTOR

AUX AND ALARM CONNECTORS:

SEE FIGURE 11 OR LABEL ON

LRD UNIT FOR PIN-OUTS.

RS422

CONNECTOR

VIDEO IN

37-PIN CONNECTOR

FRONT

PANEL

REAR

PANEL

LENS POT

ADJUST

16 Pelco Manual C557M (10/99)

4.0 OPERATION

4.1 FEATURES

4.1.1 Control Without Video

With this feature, the receiver/driver is capable of detecting Coaxitron

commands

from the controller when no video signal is present. Control without video is mainly

desired for the auxiliary function.

4.1.2 Transient Suppression

Transient suppression circuitry which has been designed into the LRD41C21/22-*

receiver/driver reduces the chance of interrupted operation or damage to the

receiver/driver due to voltage spikes on the power, video and signal lines. Tran-

sient suppression does not imply lightning suppression.

Pelco Manual C557M (10/99) 17

LENS VOLTAGE POT

(6-10 VDC)

LOCATION OF POT IS THE

SAME ON BOTH THE

BOARD SHOWN AND THE

CORRESPONDING

PCB9000234 BOARD USED

WITH THE LRD41C22-*

SERIES. AN EXTERNAL

OPENING ON THE SIDE OF

THE UNIT PROVIDES

ACCESS TO THE POT

ADJUST SCREW (SEE

FIGURE 1).

Figure 9. Assembly Layout for Receiver/Driver Board (PCB9000233 Shown)

CONNECTOR

LOCATIONS

4.2 LRD41 VOLTAGE SETTINGS

Table A lists all of the various voltages associated with the LRD41 receiver/driver

models covered in this manual. On the 24 and 120 VAC models, the voltage sup-

plied to the Pan/Tilt is the same as the input voltage. On the 230 VAC model, the

Pan/Tilt voltage is 120 VAC.

Table A. Voltage Settings

LRD41X**-1 LRD41X**-2 LRD41X**-3

Fixed Speed Variable Speed Fixed Speed Variable Speed Fixed Speed Variable Speed

Input Voltage 120 VAC 120 VAC 24 VAC 24 VAC 230 VAC 230 VAC

Camera Voltage 3 24 VAC 24 VAC 24 VAC 24 VAC 24 VAC 24 VAC

Pan/Tilt Voltage 120 VAC 12 VDC 24 VAC 12 VDC 120 VAC 12 VDC

Enclosure Voltage 120 VAC 120 VAC 24 VAC 24 VAC 230 VAC 230 VAC

NOTES: 1 Refers to LRD41C21-1,2,3 models

2 Refers to LRD41C22-1,2,3 models

3 Camera Input Voltage is 24 VAC on all models

18 Pelco Manual C557M (10/99)

4.3 PREPOSITIONING

The Legacy

Pan and Tilt utilizes linear taper precision potentiometers as the

position feedback sensors. This feedback voltage is fed to the receiver’s micro-

controller where it is digitized and stored on nonvolatile memory chips. Each receiver

can store up to 64 preset positions for LRD41C models. The first eight presets for

either series are tied to the eight alarm contacts in the receiver (see Figure 10).

4.4 ALARMS

The LRD41C21/22-* support eight alarm inputs and one alarm output. If multiple

alarms are activated, the receiver will sequence between the alarm presets. Up to

eight presets can be activated by alarm contacts connected to the receiver. Any of

these alarm inputs would activate an external device through an open collector

output.

4.5 AUXILIARY FUNCTIONS

The LRD41C21/22-* is capable of operating up to two remotely activated auxiliary

functions. Aux 3 is not available. Aux 4’s logical output is dedicated to wiper control

inside the Legacy

enclosure.

Figure 10. Preposition Alarm Wiring

NOTE:

The Alarm Out sig-

nal (capable of 25 mA sink-

ing maximum) is intended for

logic circuits or other low-

power devices. If you connect

a device that draws more cur-

rent than the maximum al-

lowed, you could destroy the

output circuitry. If you wish to

operate a device that requires

greater current, then interface

it with a relay.

ALM 1

ALM 2

ALM 3

ALM 4

ALM 5

ALM 6

ALM 7

ALM 8

ALARM

OUT

A GND SIGNAL

ACTIVATES AN ALARM

WHEN AN ALARM IN OCCURS, IT WILL

ACTIVATE AN ALARM OUT (GND)

PRESET 1

PRESET 2

PRESET 3

PRESET 4

PRESET 5

PRESET 6

PRESET 7

PRESET 8

LRD

USER SUPPLIED WIRING

THE ALARMS (1-8)

ARE TIED TO THE

CORRESPONDINGLY

NUMBERED FIRST

EIGHT PRESETS IN

ALL UNITS.

Figure 11. Sample Aux Function Wiring Diagram

AUX 1

AUX 2

AUX 3

(NOT AVAILABLE)

AUX 4 (DEDICATED TO

WIPER CONTROL, ALL MODELS)

CUSTOMER WIRING

AUX OUT

OUTPUTS SHOWN ARE IN THEIR “STATIC” STATE. WHEN ANY AUX IS AS-

SERTED, NO’S BECOME NC’S AND VICE VERSA. DEVICES CONNECTED TO

OUTPUT RELAYS SHOULD NOT EXCEED THE SWITCH CONTACT RATING.

THE LIMIT IS 1 AMP @ 24 VDC.

NO = NORMALLY OPEN

NC = NORMALLY CLOSED

NOTE:

Alarm and Aux func-

tions can be enabled through

the use of the LRD41C-

CONNKIT (see Section 7.0

under Optional Accessories).

Pelco Manual C557M (10/99) 19

Figure 12. Connector Wiring Pin-Outs

RS422 Connector

Alarm and Aux Connector

Power Connector

PIN 1 ------------------ AUX 1 NC

PIN 2 ------------------ AUX 1 OUT

PIN 3 ------------------ AUX 1 NO

PIN 4 ------------------ AUX 2 NC

PIN 5 ------------------ AUX 2 OUT

PIN 6 ------------------ AUX 2 NO

PIN 7 ------------------ GND

PIN 8 ------------------ GND

PIN 9 ------------------ GND

PIN 10 ---------------- ALARM OUT

PIN 11 ---------------- ALARM INPUT 7

PIN 12 ---------------- ALARM INPUT 8

PIN 13 ---------------- ALARM INPUT 5

PIN 14 ---------------- ALARM INPUT 6

PIN 15 ---------------- ALARM INPUT 3

PIN 16 ---------------- ALARM INPUT 4

PIN 17 ---------------- ALARM INPUT 1

PIN 18 ---------------- ALARM INPUT 2

PIN 1 ------------------ TX +

PIN 2 ------------------ TX -

PIN 3 ------------------ RX +

PIN 4 ------------------ RX -

***

PIN 1 ------------------ AC POWER IN (BROWN, HOT SIDE)

PIN 2 ------------------ NOT USED

PIN 3 ------------------ NEUTRAL (BLUE)

PIN 4 ------------------ NEUTRAL (BLUE)

PIN 5 ------------------ GREEN-YELLOW (CHASSIS GROUND)

PIN 6 ------------------ AC POWER IN (BROWN)

*** WIRE COLORS FOLLOW STANDARD CE COLOR DES-

IGNATIONS OF BROWN FOR “MAIN POWER” OR “HOT”,

BLUE FOR “NEUTRAL” AND GREEN-YELLOW FOR “GND”.

FUNCTIONAL UL COLOR EQUIVALENTS WOULD SHOW

BLACK=BROWN FOR MAIN POWER, WHITE=BLUE FOR

NEUTRAL AND GREEN=GREEN-YELLOW FOR GND.

2 4 6 8 10 12 14 16 18

1 3 5 7 9 11 13 15 17

20 Pelco Manual C557M (10/99)

4.6 AUTO/RANDOM SCAN OPERATION

Auto and random scan can be operated in either of two ways, depending on the

type of control unit you have. One method involves using the Auto/Man switch (or

keys) if your control unit has these functions. The other method involves setting

presets.

Auto/Man Switch – The Random Scan and Auto Scan functions are controlled by

the same momentary switch on the control panel labeled Auto and Man. The first

activation of the switch to the Auto position will put the pan/tilt into Random Scan. In

Random Scan operation, the pan/tilt will travel between the preset limits with a

random scan period of about 2 to 30 seconds, and a random dwell period of be-

tween 2 to 30 seconds.

At the completion of a dwell period, another random scan period is started. The

direction of this scan period is also randomly determined. When a pan limit is reached,

scan direction is reversed automatically.

A second activation of the Auto switch will put the pan/tilt into continuous duty Auto

Scan (limit switch to limit switch). After approximately 1/2 hour of auto scan, the

circuit will reset to random scan. Commanding Auto while in Random mode causes

a shift to Auto mode and starts the 1/2-hour timer. Similarly, commanding Auto

while in Auto mode causes a shift to the Random mode and zeros the 1/2-hour

timer.

Presets – Auto and random scan also can be started by programming presets. The

presets will work only when your system is configured for Extended (32-bit) Coaxitron

mode.

Refer to your controller documentation for programming presets.

Preset 96 stops a scan.

Preset 97 starts random scan.

Preset 99 starts auto scan.

Advantages of Random Scan:

• Because scan direction, scan period and dwell period are unpredictable, un-

authorized activities or intrusions are discouraged.

• Because of the reduced duty cycle, gear train wear, cable fatigue, drive motor

wear and temperature rise are reduced. These factors all contribute to higher

system reliability and increased equipment life.

4.7 TEST LOCAL CONTROL “TLC”

This feature allows you to connect an LRD41TLC Test Local Control (TLC) module

to the receiver/driver to test the control of pan, tilt and lens functions locally. This is

convenient for positioning limit stops, backfocusing, and troubleshooting the instal-

lation. The TLC module also allows positioning of the camera locally.

To use the TLC module:

1. Turn receiver OFF and plug the 16-pin connector from the TLC module into

the TLC connector on the receiver/driver (refer to Figure 1). Turn the receiver

ON to activate TLC functions.

2. Hold down the keys on the TLC module to operate the pan, tilt, and camera

functions.

3. Upon completion, detach the TLC; the LRD unit will revert to its previous op-

erational configuration.

NOTE:

The receiver does not have

to be connected to other control

equipment in order for the TLC mod-

ule to work. If the receiver is con-

nected to other control equipment, the

TLC module will override any trans-

mitter control signals from other con-

trol equipment.

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Pelco LRD41C21 and LRD41C22 Receiver User manual

Brand: Pelco

Model: LRD41C21 and LRD41C22 Receiver

Category: Security cameras

Type: User manual

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Pelco LRD41C21 and LRD41C22 Receiver User manual

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