VAR8 / Variants - Installation Guide
Enhanced A/B Audio Outputs
The enhanced outputs provide simpler connectivity than the standard outputs, but with the same
functionality. Separate connections are provided to drive A & B amplifiers from each output.
Signal Description
OUT'n'-A+
A output. Balanced Audio Output, 0dBu @ 600Ω impedance.
OUT'n'-A−
As above.
OUT'n'-B+
B output. Balanced Audio Output, 0dBu @ 600Ω impedance.
OUT'n'-B−
As above.
L Cabling connector for outputs 1 to 4: 9 way terminal block (METWAY 120A11109)
Cabling connector for outputs 5 to 8: 8 way terminal block (METWAY 120A11108)
Control Contacts
Signal Description
C'n'+ Opto-isolated input + connection.
Cn'−
As above but –ve connection. In-built resistor to suit voltages of +12 to +40V.
L Cabling connector: 10 way terminal block (METWAY 120A11110)
RS485 Serial Port
Signal Description
GND 0V Reference.
DXN EIA RS485 9600 baud.
DXP EIA RS485 9600 baud.
L Cabling connector: 3 way terminal block (METWAY 120A11103)
CAN Bus
Signal Description
GND 0V Reference.
CANL Controller Area Network (L).
CANH Controller Area Network (H).
L Cabling connector: 3 way terminal block (METWAY 120A11103)
RS232 Serial Port
Signal Description
GND 0V Reference.
TX EIA RS232 Transmit data (9600 baud).
RX EIA RS232 Receive data (9600 baud).
RTS EIA RS232 Request to Send.
CTS EIA RS232 Clear to Send.
CTRL EIA RS232 Data Terminal Ready.
L Cabling connector: 2 x 3 way terminal block (METWAY 120A11103)
Fault Relay Contacts
Signal Description
NO Volt free contact – Normally Open
COM Relay Common
NC Volt free contact – Normally Closed
L Cabling connector: 3 way terminal block (METWAY 120A11103)
Issue: 01 complete, approved
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