Digital Monitoring Products 881 Installation guide

Brand
Digital Monitoring Products
Model
881
Type
Installation guide
1912XR Panel
Bk - Aux. Common
Gr - Serial Data Out
Yl - Serial Data In
Rd - Aux. Positive
J9 Expansion Connector
Black
Red - To terminal 7
Black - To terminal 10
Adhesive backed standoff
attaches to microprocessor.
Red
{
Loop Expander Harness
J3 Loop Expansion Connector
LPX
Installation
881 Expansion Interface Card
For Use with DMP 1912XR Command Processor Panels
Description
The 881 Expansion Interface Card allows you to connect additional 714 and 715 Loop Expander Modules to
the 1912XR Command Processor panel. Loop expanders connect in parallel to a 4-wire bus consisting of two
data wires, auxiliary power, and a panel common wire. See Figure 1.
Installing the 881 module
The 881 card plugs onto the J9 connector of the 1912XR panel and uses an adhesive backed plastic standoff
mounted in the center to hold securely in place.
Follow the instructions below when installing the 881 card:
1. Remove AC and battery power from the 1912XR panel before installing the 881.
2. Remove the paper strip from the base of the plastic standoff.
3. Hold the 881 card on the upper left and right corners using the thumb and index finger of each hand and
carefully align the 40 pin connector of the 881 with the J9 connector on the 1912XR panel.
4. Gently press the 881 into the J9 connector while applying even pressure on both sides.
5. Connect the loop expander bus to the J3 Loop Expansion Connector.
6. Connect the Black wire from the 881 card to terminal 10 on the 1912XR panel.
7. Connect the Red wire from the 881 card to terminal 7 on the 1912XR panel.
8. Power for devices connected to the 881 card is provided by the panel's auxiliary power terminals 7 and
10. You can also add a regulated auxiliary power supply. When using a separate power supply, connect
a wire from the negative terminal of the power supply to terminal 10 of the 1912XR panel.
9. Restore AC and battery power to the 1912XR.
LT-0180 (4/94)
Figure 1: Installing the 881 on the 1912XR panel
881 Installation
2500 N. Partnership Boulevard Springfield, MO 65803 www.dmpnet.com Digital Monitoring Products
Installing Multiple Expansion Devices
Figure 2: Device and power supply connection to the 881 card.
Wiring Distances for Multiple Expansion Devices
Figure 3: Expansion device wiring distances.
* Locate auxiliary power supplies at the far end of the wire run.
# of expansion
devices on 881
Distance when powered
from panel
Distance when powered from
auxiliary power supply *
22 AWG 18 AWG 22 AWG 18 AWG
1 3940' 9875' 7500' 9375'
2 2735' 6855' 7500' 9375'
3 1925' 4830' 7500' 9375'
4 1420' 3565' 7500' 9375'
5 1140' 2855' 7500' 9375'
6 900' 2250' 7500' 9375'
8 700' 1755' 7500' 9375'
10 550' 1370' 7500' 9375'
15 370' 930' 7500' 9375'
20 265' 660' 7500' 9375'
25 200' 495' 7500' 9375'
AC BELLAC
12345678910 11 12 13 14 15 16 17 18 19
GND YEL GRNBLKB + B - SMK L5+ L5- L1 L2 L3 L4GNDGND
1912XR Command Processor
MODEL 714
LOOP
EXP ANDER
MODEL 714
LOOP
EXP ANDER
MODEL 714
LOOP
EXP ANDER
881
Expansion
Interface
MODEL 715
LOOP
EXP ANDER
MODEL 715
LOOP
EXP ANDER
Do NOT use the 1912XR
AC transformer
Terminal 7
Auxiliary Power
Terminal 10
Panel Common.
An auxiliary UL listed power
supply can be used to extend
device mounting distances.
DMP 714 and 715 Loop Expanders
can be used together on the same
expansion wiring.
Green
Yellow
Red
AC
T o AC transformer
Always connect a wire from the
negative of the power supply to
terminal 10 of the 1912XR
Command Processor panel.
Black
12 VDC Auxiliary
Power Supply
Terminal 1 1
Switched Aux. Power
Digital Monitoring Products
2500 N. Partnership Boulevard Springfield, MO 65803 800-641-4282
  • Page 1 1
  • Page 2 2

Digital Monitoring Products 881 Installation guide

Brand
Digital Monitoring Products
Model
881
Type
Installation guide
Download PDF
report

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI

Related papers

Other documents