Space Requirements; Prisma Ii Standard Chassis Style - Cisco Prisma II EDR Installation Manual

Chapter 2 System Installation

Space Requirements

This is a double-width, half-height module. Actual space requirements depend on
whether the module is installed in a Prisma II standard or a Prisma II XD chassis.
Prisma II Standard Chassis Installation
When installed in a Prisma II standard chassis, the module is placed in a host
module and then inserted into the chassis in an available pair of application module
slots, which are generally slot pairs 5-6 through 15-16.
If the module occupies the upper host module position, its slot number is the

same (5 through 15) as that of the first slot number of the host module.
If the module occupies the lower host module position, its slot number is 16 plus

the first slot number of the host module, or 21 through 31.
Slots 1 through 4 are usually reserved for the power supplies. If an ICIM is installed,
it occupies slots 15 and 16. If an ICIM is not installed, any other module (or host
module) can occupy these slots.
Slots 2 and 4 are reserved for an internal power supply, if installed. If an internal
power supply is not installed here, any other module (or host module) can occupy
these slots.
Prisma II XD Chassis Installation
When installed in a Prisma II XD Chassis, the module is inserted directly into an
adjacent pair of available application module slots on the chassis front panel. The
application module slots are numbered 1 through 16.
The chassis power supplies and ICIM are installed in dedicated slots on the chassis
back panel, so slots 1 through 16 are available for application modules no matter
how the chassis is configured.

Prisma II Standard Chassis Style

The Prisma II standard chassis may be configured as front-access or rear-access
depending on the system you have purchased. Power, RF input or output, and other
connectors may be located on either the front or rear of the chassis. Connections to
the chassis serve the same function and are made in the same manner regardless of
the location of the connectors or chassis configuration.
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CAUTION:
To ensure proper air circulation when installing a single Prisma II EDR
Transmitter module in a Prisma II host module, install the transmitter
in the upper position and a single-wide application module or blank in
the lower position of the host module.
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