Instruction manual

Basic System Management Procedures
8-46
Installation, SPM, Maintenance, and Troubleshooting Supplement
■ If you remove a module but do not replace it, and then perform a board
renumber, the control unit will not recognize any modules that follow the
empty slot. You must reseat all of the modules to fill the empty slot before
you perform the board renumber.
The Inspect function (
) lets you see which modules have been assigned to
slots on the control unit. Note that both phantom modules and real modules
appear if you use the Inspect feature. Table 6-3 shows the type of boards that
you can select. To see only real module assignments, you must print the
System Information report: System
→More→Print→SysSet-up.
Table 8-3. Board Types
Board Type Description
412LUP 4 loop-start line jacks and 12 digital extension jacks with 4
touch-tone receivers; Caller ID
024UPO 24 digital extension jacks
016MLX 16 MLX extension jacks (32 endpoints); upgradeable with
PCMCIA card
008MLX 8 MLX extension jacks (16 endpoints)
016ETR 16 ETR extension jacks including 6 with tip/ring
functionality with 4 touch-tone receivers
016TRR 16 tip/ring extension jacks with 4 touch-tone receivers
008OPT 008 OPT - 8 tip/ring extension jacks with 2 touch-tone
receivers
MERLINMsg MERLIN Messaging - 11internal tip/ring extension jacks
with 2 touch-tone receivers; MERLIN Messaging System
resides on this module
100D 24 channels (“virtual” lines/trunks); upgradeable with
PCMCIA card
800BRI 8 BRI facilities