Cisco Cisco Prisma II EDR Receiver Installation Guide
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Installation
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Master/Slave Connections,
Continued
Typical Master/Slave Jumper Connections for Modules in Separate Chassis
Important: Each chassis that is used for alarm connections must have a separate, dedicated interface panel.
The diagram below shows jumper connections for a typical master/slave connection between two modules in separate
The diagram below shows jumper connections for a typical master/slave connection between two modules in separate
chassis. The master module is shown in chassis 1, slot 4 and the slave module is in chassis 2, slot 6. If a critical fault occurs in
the master module, its relay signal is carried via the jumpers, from the chassis 1, slot 4 ALARM OUT terminal to the chassis 2,
slot 6 ALARM IN terminal. This turns on the slave module located in chassis 2, slot 6. The slave module continues in
operation until the master module is fixed. At that time, the master module automatically takes over and the slave module
switch relay turns off.
Note: The Prisma II bdr 2:1 Dual Receive Processor is the only Prisma II module that requires a second jumper to be
Note: The Prisma II bdr 2:1 Dual Receive Processor is the only Prisma II module that requires a second jumper to be
connected to the B terminal of the ALARM OUT strip for master/slave operation. A single jumper wire from the A terminal
of the master to the A terminal of the slave is the only jumper connection required for master/slave operation with all other
Prisma II modules. The connection using the B terminals for backing-up the processor is shown as the dotted line.