Nortel Meridian 1 Option 11C Upgrade Manual page 71

Upgrade a two-cabinet system with metal cable to Option 11C
Note: Dual port Fiber Expansion Daughterboards that use glass
fiber-optic cable can have a glass fiber extension equipped with plugs
at each end to make installation easier. Connect the extension to the
daughterboard before you install the extension on the SSC card.
a Connect the first Fiber Expansion Daughterboard to the connector
labeled "Fiber 1."
Option 11C and 11C Mini
Page 71 of 224
Upgrade Procedures Guide