Cisco Prisma II Installation And Operation Manual page 34

Communications Connections
ICIM IN/ICIM OUT and EM IN/EM OUT Cables
The Prisma II platform allows several chassis to be interconnected. These
connections allow the modules to communicate with the ICIM and also allow an
ICIM to communicate with TNCS software.
Chassis with an ICIM are connected in series to each other with an ICIM via EM
IN/OUT connectors. All other chassis within each ICIM's domain are connected in
series via the ICIM IN/OUT connector. For more information on chassis
communications, see Communications Connections in Chapter 2 of Prisma II Chassis
Installation and Operation Guide, part number 713375.
The cable required for the ICIM IN/ICIM OUT chassis connection is identical to the
EM IN/EM OUT cable. This cable is a standard "off the shelf" serial extension cable,
DB9 Female to DB9 Male. This cable can be purchased at your local computer store.
The Cisco part number for a 6-foot DB9 Female to DB9 Male extension cable is
180143.
The connectors are a Serial – 9 pin D-shell (EIA 574/232).
EM IN/EM OUT to TNCS Cable
The connection from the Prisma II Chassis to the TNCS connection requires a special
cable kit available from Cisco. Prisma II Cable Kit, part number 738686, includes the
following cables:
1ea
1ea
4ea
ICIM IN/ICIM OUT Connections
The Prisma II platform allows multiple chassis to be connected for module to ICIM
communications. This connection is required for all chassis intended to be
controlled by a given ICIM.
Note: An ICIM can control a maximum of 82 modules. Depending on your
application this is typically 6 or 7 chassis to a rack. Do not exceed these limits.
The chassis has two DB9 connectors for the ICIM to module connections. ICIM OUT
is a male connector and ICIM IN is a female connector.
2-14
Prisma II Cable Assembly
DB9 to DB9 Cable Assembly, 10 foot
DB9 to DB9 Cable Assembly, 3 ½ foot
Installation 78-715192-01 Rev C