INTEGRITY VOICE ALARM ROUTING MATRIX
Integrity Voice Alarm Routing Matrix Installation & Maintenance Manual • Approved Doc. No. DCS0003214 Rev 0 (8/2/05) • Page 11
Internal layout
Behind the front panel are the circuit boards for the controls, LCD and a fault warning
sounder.
In the bottom of the case is a motherboard with 17 sockets for cards.
Motherboard
The motherboard carries eight analogue audio channels, one monitoring tone channel, a
data control bus and power distribution.
CPU slot
The left hand slot is marked “CPU Or iNET Card Only”. This slot can only contain a CPU card.
CH1-CH8 slots
These slots take any of the currently supported audio input or control cards.
Slot CH1 has a feature to ensure that failure of any system critical microprocessor results
in the audio input from this slot being routed as top priority all-call to all audio output
zones. Therefore, slot CH1 is normally used for connection of an emergency
microphone(s). Apart from this, any slot can be used for any input or control card as pri-
orities are assigned in the configuration software.
CH9-CH16 slots
These slots take any of the currently supported audio output cards or control cards.
CH1 CH2
CH3
CH4
CH5 CH6
CH7
CH8
CH9 CH10 CH11 CH12 CH13 CH14 CH15 CH16
CPU
Integrity motherboard