Nortel Meridian Meridian 1, Planning, Installation And Operating Instructions

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Chapter 1 — Overview of the Option 11C Compact Page 5 of 536
Option 11C Compact Planning, Installation, Fault Clearing and CCBR Guide
Number of Peripheral (PE) slots
There are six PE slots in the main cabinet.
Each additional cabinet adds six or ten additional PE slots, depending on the
type of cabinet used.
Software generic
X27 software.
Conference channels
The NTMW01 SSC provides 32 channels for conferencing. The number of
channels can be increased to 48 with the addition of a fiber expansion
daughterboard on the NTMW01 SSC (16 channels on the fiber expansion
daughterboard).
Intercabinet connection
Cabinets are interconnected with a 10 m (33ft) multi-mode plastic fiber optic
cable.
Note: The A0632902 Plastic Fiber Optic Cable (multi-mode) is the only
fiber optic cable supported by the Option 11C Compact system. The
maximum distance between the cabinets is 33 cable feet (10 cable
meters). Allow approximately 2 ft (0.5 m) of slack at each end of the
cable for routing inside the cabinets.
Power Failure Transfer Unit (PFTU)
Each NTMW07 Line/Trunk card has a built-in PFTU capable of connecting
one trunk on the card to one telephone set on the same card when the
commercial power supply to the Option 11C Compact system is interrupted.
Reserve power
Commercial ac power can be maintained during a power outage by using an
Uninterruptable Power Supply (UPS) unit. (A UPS, if required, must be
obtained from a local supplier.)