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Strata CIX670 and CIX1200
CIX670 and CIX1200 Remote Expansion Cabinet
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Strata CIX General Description
CIX670 and CIX1200 Remote Expansion Cabinet
A CIX670 and CIX1200 Expansion Cabinet can be located between a few inches and up to three
kilometers (1.86 miles) from its Base Cabinet. Remote Expansion Cabinets are enabled by the
fiber optic RRCU interface cards. One RRCU connects to up to two Data Cables and applies the
inter-cabinet signal to a multi-mode fiber-optic pair. One fiber pair can support one or two
Expansion Cabinets in one remote location using one RRCU in the Base Cabinet and another in
one of the Remote Expansion Cabinets.
CIX1200 expansion cabinets 8 through 12 must be connected as remote cabinets using RRCU
interface cards and multi-fiber optic cables.
Fiber connected cabinets support the BIOU for external Page Zones, Night Bell, etc., and all CO
line and trunk interface circuit cards. Network clock synchronization can only be derived from
digital trunks installed in the Base Cabinet or a expansion cabinet connected with standard ribbon
cables, not fiber cables.
A Remote Cabinet can support all circuit cards that can be installed in a local Expansion Cabinet,
including digital trunk cards. However, the system cannot derive network clock synchronization
from a digital trunk installed in a Remote Cabinet. This requires a digital trunk installed in the
Base Cabinet or in a local Expansion Cabinet connected to the Base by a standard ribbon cable.