INSTALLING THE IRM
3-2
Figure 3-1
IRM Jumper Locations
will be saved if power should fail to the MMAC, or if the IRM is removed
from the MMAC. When set to the disabled position, all parameters
entered into the IRM will be lost after approximately 10 minutes.
To set the Battery Enable/Disable Jumper:
•
To enable the Battery Backed-up RAM, place the jumper over Pins 1
and 2.
•
To disable the Battery Backed-up RAM, place the jumper over Pins 2
and 3. This is the position in which the IRM is shipped.
JP5
Battery Jumper
JP4
Default Settings
Jumper
JP3
Not Used
F
R
O
N
T
P
A
N
E
L
B
A
C
K
P
L
A
N
E
JP2
TNH-MIM
Jumper
PIN
NUMBERS
JP1
Cabletron Systems’
Use Only
1 2 3
