Fire or Paging Microphone Connection to ACU Input 1 or. ASL INTERCOM SMC02G

SMC02G/SMC02F/Variants - Product Manual

4.2.4 Fire or Paging Microphone Connection to ACU Input 1 or 2

The following diagram shows the connection of the SMC02 to an ACU’s Mic/Line input 1 or 2 as a Zoned

Fire Microphone or Paging Microphone, the latter being the only option for the ‘S’ variants.

Note the ACU can either be the wall mount Intellevac ACU or the rack mount VAR8-ACU.

When connected to an ACU the listen-in function is activated in all VAR12 and VAR20 Routers in the

Intellevac network, in a similar fashion to when directly connected to a VAR Router. An external audio mixer is however required to mix the AUX Outputs of all VAR12 and VAR20 Routers in the network. This mixed audio can then be fed to the SMC02’s listen-in speaker.

Issue: 02 complete, approved

Page 28 of 60

SMC02G/SMC02F/Variants - Product Manual

Figure 8 SMC02 Connection to ACU Inputs 1 or 2

ZONED FIRE MICROPHONE / PAGING MICROPHONE

CONNECTIONS TO ACU INPUTS 1 OR 2

SMC02 BMB01 (c)

FAULT LED

FAULT LED

PIN 50: DATA DXP

PIN 51: DATA DXN

PIN 49: 0Vin

DO1 (PIN 14) TO DO12 (PIN25)

(DIGITAL OUTPUT) (b)

PIN 48: +24Vin

ACU (d)

SERIAL RS485

RS485DXP

RS485DXN

GND

SUPPLY+

AUDIO MON

(e)

+ SUPPLY

0V SUPPLY

INPUT 1 OR 2

SUPPLY+

SUPPLY 0V

ALL-CALL-ONLY LED

(a)

ALL-CALL-ONLY-LED

ALL CALL ONLY LED

SPEAK NOW LED

470

SPEAK NOW LED

PTT+

(a)

(a)

(a)

SPEAK-NOW-LED

PTT+

PTT-

PRESS-TO-TALK

AUDIO

DATA

LISTEN-IN

PTT-

AUDIO OUT -

AUDIO OUT+

DXN

DXP

AUDIO IN -

AUDIO IN+

(a) Fire Mi cro ph one c onn ec t io ns: on ly on standard SMC02 units .

(b) BMB01 digital output to be programmed for

'Fault Indication' at the ACU.

(c) The BMB01 is normally connected to the

ACU's RS485 port as shown in this diagram.

Note that the ACU also supports BMB01 units on its Mic/Line inputs, in which case the DATA and power supply connections are to the MIC

Data and SUPPLY terminals of the selected

Mic/Line inputs.

Refer to the BMB01 installation guide and the specific ACU installation guide for further details.

(d) The ACU can be either the Intellevac ACU or the VAR8-ACU.

(e) The Intellevac Network supports Intellevac

DAU and VAR8 units as well as VAR12 and

VAR20 Routers, but the DAU and VAR8 do not support the listen-in function.

VAR4 is not supported by the Intellevac

Network

Refer to ACU and VAR-NIA specific user documentation for network connection details.

!

For EMC compliance:

1. Cable tails to be < 3 cm.

2. Screen of all cables to be connected to earthing terminals as specified in the ACU installation guide.

EXTERNAL

MIXER

IN1-

IN1+

OUT-

OUT+

INn-

INn+

.

..

IN -

IN +

MIC DXN

MIC DXP

VAR12 / VAR20

(e)

A OUTPUTS 1-4

ON BASE BOARD

PIN15: AUX OUT -

PIN17: AUX OUT +

.

..

VAR12 / VAR20

(e)

A OUTPUTS 1-4

ON BASE BOARD

PIN15: AUX OUT -

PIN17: AUX OUT +

(e)

(e)

VAR-NIA

(e)

.

..

(e)

(e)

VAR-NIA

(e)

Issue: 02 complete, approved

Page 29 of 60

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