Rear Panel Connections - Biamp Vocia PARM-1 Manual Del Operador

PARM-1 Rear

Rear Panel Connections

The rear panel of the PARM-1 has four 6–way connectors, each of which provides connections for two
relays.
The relay numbers correspond to the AM-600 amplifier channel of that number (see amplifier channel
numbers printed above the AM-600 amplifier modules on the VA-8600 rear panel).
Connections are labeled C, NC and NO. Each relay connects C to NC (Normally Closed) when the relay
is de-energized (no paging activity); and C to NO (Normally Open) when the relay is energized (during
paging activity).
Connections are via 3.5mm pluggable screw terminal blocks (supplied with PARM-1).
If channel or device failover is enabled for amplifier channels associated with a PARM-1 module, relay
contacts must be interconnected in order that the desired functionality is achieved from both the primary
and secondary amplifier channels. For example, if channels 1 and 2 of a VA-8600 are configured as a
failover-pair relay circuits 1 and 2 on the PARM-1 must be interconnected. If using Normally Open (NO)
type connections, wire the C and NO terminals for each in parallel. If using Normally Closed (NC) type
connections, wire the C and NC of Relay 1 in series with the C and NC terminals of Relay 2. If the PARM-
1 is used in a failover configuration connections between the relays is required.
Ensure that connections to the relays do not exceed the specified maximum ratings.