RISCO Group ProSYS EV - Manual (Page 13)

Voice Module Installation Guide 13
NOTES:
Do not run wires close to power (110/230 VAC), high-voltage wiring or
any communication lines.
Do not wrap or roll wires.
All unused wires should be grounded by connecting them to the COM
terminal.
The maximum distance between each MBU and the Voice Module
should not exceed 150 meter.
MBU Connection Modes
The MBU can be connected to the Voice Module in the
following three modes:
Ø
Messaging mode
Ø Listen - In mode
Ø Listen - In & Messaging mode
Terminal Block Wiring
The following table lists the connections that should be made
between the Voice module terminal block and the MBU terminal
block.
NOTES
It is recommended to mount at least one Message Box Unit (MBU) that
has buttons close to the keypad for easy messages recording.
Voice Module
Terminal
MBU
Terminal
Description
AUX AUX
COM COM
12 VDC that supplies power
to the MBU.
NOTE:
All the AUX and COM terminals are connected in parallel.
LED LED
Controls the MBU's LED
indicator.
TMP TMP
The tamper terminal informs the
software when the MBU is
opened.