Cisco Prisma II Installation And Operation Manual page 33

External Alarms Connections,
Master/Slave Illustration
MASTER MODULE
CRITICAL FAULT
A high
OFF
enables the
ON
module (e.g.
turns on the
ENABLE
module) CONTROL
To make a module a MASTER, set the
Master/Slave control to "Master" (the default).
The state of the slave input is ignored.
Prisma II Redundancy Interface Panel
The Prisma II Redundancy Interface Panel is an accessory to the Prisma II platform.
It is intended to be used with the master/slave feature and the contact closure alarm
feature of the Prisma II platform.
The Prisma II Redundancy Interface Panel serves as an extension to the two DB-37
connectors labeled ALARM IN and ALARM OUT on the connector interface panel
of the Prisma II Chassis. The terminals on the redundancy interface panel are
extensions of pins on the ALARMS OUT and ALARMS IN connectors on the
Prisma II Chassis.
Refer the section titled The Prisma II Redundancy Interface Panel in Chapter 2 of
the Prisma II Chassis Installation and Operation Guide, part number 713375.
78-4006323-01 Rev C
Continued
Inter-module connections are made on
the back of the chassis using
"ALARMS IN" and "ALARMS OUT"
connectors.
ALARM
RELAY
NORMAL
Part of
ALARMS OUT
connector
M
S
MASTER/
SLAVE
Part of
CONTROL
ALARMS IN
connector
SLAVE MODULE
Part of
ALARMS IN
connector
MASTER/
S CONTROL
M
ALARM
RELAY
Part of
To make a module a SLAVE, set the
ALARMS OUT
Master/Slave control to "Slave". The slave
connector
will not turn on unless the master module
is removed or has a critical fault.
Installation
SLAVE
A high
OFF
enables the
ON
module (e.g.
ENABLE turns on the
module)
CONTROL
CRITICAL FAULT
NORMAL
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