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Chapter 4 Install, remove or replace the Media Bay Modules 125
Installation and Maintenance Guide
Connect the fiber cables
Follow these steps to connect your Norstar expansion modules to a FEM module installed into a
Business Communications Manager.
1 Ensure the Business Communications Manager is powered-up and functional.
2 Connect the fiber cables from the Norstar expansion modules to the jacks on the FEM module.
a Connect the Norstar Line Modules to the FEM beginning at fiber port 1.
b Connect Norstar Extension Modules to the FEM beginning at fiber port 6.
3 Change the DN records in the Unified Manager or change the set wiring, as required, to match
your system.
Table 15 compares the designated extension numbers on the Norstar and on the Business
Communications Manager.
Note: The DIP switch settings you chose determines which FEM ports are available.
There are only six ports available. Refer to “FEM switch settings” on page 344.
Warning: When you connect a Norstar station module to an FEM, the extension numbers
of the telephones connected to the station module may change. To keep the same
extension numbers, you will have to change the DNs of the telephones or change the
telephone wiring to correspond with the required DNs.
Note: If you connect a Norstar station module amphenol cable directly to a DSM, you do
not have to modify the wiring connections. Ensure you select the correct DS30 number.
Table 15 Extension comparison chart
Ports 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
DS30 channel 2, FEM port 1
Norstar 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236
BCM 225 226 227 228 221 222 223 224 233 234 235 236 229 230 231 232
DS30 channel 3, FEM port 2
Norstar 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252
BCM 241 242 243 244 237 238 239 240 249 250 251 252 245 246 247 248
DS30 channel 4, FEM port 3
Norstar 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268
BCM 257 258 259 260 253 254 255 256 265 266 267 268 261 262 263 264