2-7
INSTALLING THE FDMMIM
Jumper JP6 (Figure 2-5) is a laser jumper. This jumper has no affect
on FDMMIM operation; it simply indicates to non-FDDI manage-
ment modules that it is an FDDI single mode or multimode board.
This jumper is set at the factory; you need not change its position.
2.2.2 Setting Configuration Switches
Before installing your FDMMIM, you must set the bridge
configuration switches to select initial configuration options. Though
the modular switch bank holds eight switches, the FDMMIM utilizes
only a few of them. (See Figure 2-6.)
Note: At power-up, configuration switch settings override Local
Management settings. This means that when you cycle MMAC power
or reset the FDMMIM, LM settings default to their corresponding
configuration switch settings.
Locate the switch bank along the top edge of the FDMMIM and
FDMMIM-30 (Figure 2-5). On the FDMMIM-04 and FDMMIM-24,
the switch bank resides just below the daughter board containing the
M type ports.
Figure 2-5. Battery Activation/Switch Bank Location
FDMMIM
Front Panel
Battery
Configuration
Switch
Battery
ON
JP1
ON
OFF
JP1
ON
OFF
Battery
Jumper (JP1)
P
L
AI
NVIE
W
B
A
T
T E R I
E
S
PMB 3.6B
Set to LASER (on
FDMMIM-30 only)
Laser
Jumper (JP6)
JP6
LASER
JP6
LASER