Baldwin Boxall OPT401 Operating instructions

Brand: Baldwin Boxall

Model: OPT401

Type: Operating instructions

Baldwin Boxall Communications Ltd.

Wealden Industrial Estate, Farningham Road

Crowborough, East Sussex, TN6 2JR

Telephone: 01892 664422 Fax: 01892 663146

Email: [email protected]

IOPT401

Issue 2 10/12/2009

ECR2324

OPT & BOX 401

Operating Instructions

- 2 - Issue 2

Digital Message Repeater with Record & Playback facilities

The unit can record and playback a single message of up to 1 minute duration.

Recordings can be made on site using the microphone supplied, and the method of playback (either

once or continuous) can be selected by contacts on the input connector.

As supplied from the factory, the unit is configured to use the microphone supplied (phantom powered

and unbalanced output). If a different microphone is to be used then the lid should be removed and the

switches altered to suit. See table 2 for details of the internal DIL Switch settings.

Fig 1: Connections to external equipment to record and playback a recorded message.

To Record a Message

To make a recording plug in the microphone supplied to the MIC/LINE input and either press and

hold the “Record” button or connect pins A & B together on the connector block.

To indicate that recording is in progress the LED will turn red.

Speak clearly into the microphone at a distance of approximately 15 cm.

At the end of the message release the button (or pair of contacts) and the LED will go out to indicate

that recording has finished.

To prevent accidental erasure of the message it is recommended that the microphone be removed from

the socket after the recording has been made.

To Playback the Message

The unit will either play the recorded message once or continually depending on how the playback is

initiated.

To play the message once, pin ‘C’ should be connected to 0V.

The Status LED will illuminate Green until the message has finished.

To play the message continuously, pin ‘D’ should be connected to 0V.

The Status LED will illuminate Green and the message will be repeated until the connection is

removed. Once removed, the module will not stop immediately but will play to the end of the

message.

The volume control can be adjusted using a small screwdriver to provide the output level required to a

maximum level of 0dB (775mv).

RECORD

SWITCH

MESS TRI G PLAY ONCE

TEL : 01892 664422

BOX 401

ACCESS. OPEN COLLECTOR

30V @ 100mA MAX

EN1658

SUPPLY

+17V - +30V

45mA MAX

AUDIO OUTPUT - 0dBm

MESS TRIG PLAY

CONTINUOUS

MIC / LINE

INPUT

SET

OUTPUT

LEVEL

PRESS TO

MAKE RECORDING

RED - RECORD

GREEN - PLAYBACK

C O M M U N I C A T I O N S

A&B - Link to record message.

Contacts in parallel with “Record”

switch (I) next to the LED.

C - Connect to ‘G’ (0V)

to replay message once

D - Connect to ‘G’ (0V) to replay

message continuously

E - Connect to “Access” pin of

relevant amplifier input

F - Audio Line Output

G - Connect to 0V.

H - Connect to +V (17V - 30V)

I - Record Switch

J - Status LED

K - Microphone Input

L - Output Level

- 3 - Issue 2

Internal Settings and Controls

Fig 2: PCB layout and DIL switches

The unit has a bank of eight switches that enable various functions as follows:

Switch PCB Ident Option

1. REC DIS When switched ON recordings cannot be made, even when a microphone is plugged

into the unit.

Can be used to prevent accidental deletion of the recorded message

2. PA N/A – must be set to OFF*

3. MS Must be set to ON* to enable the audio output

4. CHIME N/A – must be set to OFF*

5. REST N/A – must be set to OFF*

6. PH POWER When switched ON* phantom power is provided on pin 2 of the jack socket.

7. PH POWER When switched ON* phantom power is provided on pin 3 of the jack socket.

8. BAL I/P When switched ON the audio input should be a balanced signal.

* Default settings as supplied from the factory. Table 1

OPT401 Fitting and Connection Details.

This unit can be supplied as either a BOX401 or an OPT401.

The units are identical except that the OPT401 is not mounted in a box and is designed to fit internally in an

M2120E amplifier.

A four way connector is attached to ‘P2’ of the OPT401.

This connector should only be used with an M2120E amplifier and the unit should be fitted as follows:

LED1

C35

RECSW1

R21

C14

C17 C16

C4 C2

C3 C1

VR1

R29

C13C7C6R20R7

C15

R37 U1

R28 R4

C26

C25 C23

R31 R30

C21

R43

R42

R22

REC

DIS

CHIME

REST

PWR

BAL I/P

R38

C10

SW2

C29

REG1

C27

C30

R32

R33

C28

C31

REG2

R34

C22

R27

TR3

R40

C18

C19

R24

R25

C20

TR1

C33

R26R9

R10

R12

R17

R13

C8 TR2

C11 C12

R19 U7

C24R18

R39C34

R35

R38

R11

R16

R14

R41

C32

R15

R44

R45

C BALDWIN BOXALL OCT 99. PC1212-2

12345678

C36

C37

C38

C39

C40

C41

C42

R46

OPT401 R17

JACK

SOCKET

TO OPTION

SOCKET P10

C50

C51

LK48

C12

C13

R5R9

C3 U5

P11

C56 R48 C53 C55 R51

VR1 C9 VR2 C19

C59

C58

R49

C52

R60

R63

R52

C54

LK1

LK2

LK3

LK7

VOLUME I/P1 VOLUME I/P2

LIFI

- 4 - Issue 2

BOX/OPT401 Specification

Overall frequency response, record to playback -3dB : 300 Hz to 3.4 kHz

Sampling frequency : 8 kHz

Maximum message duration : 60 seconds one message

Signal to noise ratio : Better than 45dB

Audio output level : 0dB

Controls : Volume

: Record

: Dual in line switches to

: select facilities

Indicators : Record / Playback LED

Message initialisation : Normally open contacts.

Power consumption : 45 mA

Supply voltage : 17-30Vdc

Low Vo

e D

rect

73/23/EECas amended

by 93/68/EEC

EMCDirective

89/336/EECas amended

by 92/31/EECand 93/68/EEC

lies only when the items

are correctly fitted and o

erated

in or with

roducts of our

manufacture and are installed

in a recommended enclosure.

Baldwin Boxall OPT401 Operating instructions

Baldwin Boxall OPT401 Operating instructions

Baldwin Boxall OPT401 Operating instructions

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