![](/images/new-backgrounds/1131807/13180763x1.webp)
12 | ZONE RELAY MODULE | |
| (ZRM) | LBB 1287 |
The SM30 system is intended for use with 2 separate amplifiers, or two separate channels of a multi channel amplifier. One channel will handle the ‘Call’ signal, and the other channel will amplify the ‘Music’ signal. This allows the music signal to continue, uninterrupted, when a call is made to other loudspeaker zones.
Both the Call and Music signals are processed via SM30, and are available on the output on the Line Output Module. The signals are then amplified by their separate power amplifiers, and the amplified signals return to SM30, via the inputs of the Zone Relay Module.
The SM30 software uses the relays of the Zone Relay Modules to route the separate signals to their relevant loudspeaker zones. Each Zone Relay Module is capable of routing the amplified Call and Music signals to 6 separate loudspeaker zones. Up to 3 units may be installed in the Control Centre, giving SM30 the capacity to route the signals to 18 loudspeaker zones.
12.1Installation
Mounting in the Control Centre
Up to three Zone Relay Modules can be installed in the Control Centre, in slots G, H, & I, as illustrated in fig.5.1.
The numbers designated to Loudspeaker Zones by the microprocessor are dependent on the slot in which the Zone Relay Module is located. If, for instance, only one Zone Relay Module is used in a system, and that module is located in slot I, then the six loudspeaker zones would be numbered
fact that they are the only loudspeaker zone outputs in the system. This should be taken into consideration when planning the location of the Zone Relay Module(s) in the Control Centre.
Terminations
The module is fitted with 2
The centre row of 4 sockets are used for linking the module to the next Zone Relay Module. The bottom connector (fig.12.1A) feeds the routed outputs to the 6 loudspeaker zones. Fig.12.2 and fig.12.3 show how to connect the
| F 3 |
B | F 2 |
|
F 1
A
LBB 1287
Fig. 12.1 - ZRM
30