Installation manual

ManualsBrandsSG Security Communications ManualsMusical equipmentMLR2-E

14VAC14VAC

14VAC May be used as an external AC output.

BATTBATT

BATT May be used as an external 12V power source. Do not connect a battery to these terminals.

B. LIGHTB. LIGHT

B. LIGHT Backlight power input terminal. Connect a secondary 12V power source to illuminate the LCD screens. A

secondary power supply is not required if a 12V supply has already been connected to the DML4 B LGT

terminal.

HNDSET1HNDSET1

HNDSET1 Handset connections for Line 1 and Line 2. These terminals are used to provide 2-way voice communication

HNDSET2HNDSET2

HNDSET2 when the Audio Mode is activated. Note that the handsets must normally be off-hook.

RxRNG1RxRNG1

RxRNG1 These terminals are used to simulate a ring signal on the telephone lines for test purposes. These terminals

RxRNG2RxRNG2

RxRNG2 are also used for Downlook video communication or to remotely cancel an audio session.

TxPG1TxPG1

TxPG1 12V programmable outputs. These terminals are also used for Downlook video communications. When Downlook

TxPG2TxPG2

TxPG2 is being used, these terminals may not be used as programmable outputs.

AC INAC IN

AC IN 16VAC power input

AC OUTAC OUT

AC OUT 16VAC filtered power output

BATTBATT

BATT 12V battery

B.LGTB.LGT

B.LGT Backlight Power Terminal: connect as secondary

12V power supply to illuminate the LCD screens

GNDGND

GND Ground

BUZZBUZZ

BUZZ Buzzer Output: this 12V output follows the internal

buzzer

TAMPTAMP

TAMP UPS Low Battery Supervisory

R SIMR SIM

R SIM UPS AC Failure Supervisory

HNDSET BHNDSET B

HNDSET B Not used

HNDSET AHNDSET A

HNDSET A Not used

AUXAUX

AUX Fused 12V output

RCARCA

RCA Not Used

RCBRCB

RCB Not Used

ACKACK

ACK Acknowledge Output: this 12V output follows the

“Acknowledge” light

TRBLTRBL

TRBL Not used

OPTOPT

OPT Option Output: this 12V output follows the “Option”

light

PGM1PGM1

PGM1 Output 1 (used for RED1 installation)

PGM2PGM2

PGM2 Output 2 (not used)