Users Manual

110 MDS™ Master Station MDS 05-6399A01, Rev. G
6.5 LN Radio Modules
Figure 6-8. LN Radio Module
(Part No. 03-6846A01-Lxx)
The LN Master Radio Modules are field replaceable, hot swappable, radios offering narrowband
communications.
Master station Radio modules are field replaceable and hot swap-
pable. Refer to Section 8.4 Replacing Modules for information on removal and in-
stallation.
When installing Radio Modules, torque thumbscrews to 10 in-lbs,
or approximately ¼ turn past hand tight, to insure optimum heat
transfer through thermal contact connector on the rear of the unit.
LN Master Radio Module LED Indicators
The LN Radio Modules have bi-color green/red LEDs to indicate power, alarm, and ac-
tive/standby status as shown in the table below. Blue LEDs to indicate receiver transmit and re-
ceive are also provided.
Table 6-14. LN Interface LED Descriptions
Mode LED State Description
Access Point / Remote ACTIVE
PWR/ALARM
Off
Green
x Interface is operational.
x Interface is not currently the active NIC in a re-
dundant system.
Access Point / Remote ACTIVE
PWR/ALARM
n/a
Flashing Red
x Interface is in an alarmed state
Access Point ACTIVE
PWR/ALARM
Red
Green
x Interface is operational.
x Interface is currently the active NIC in the sys-
tem.
x There are no connected remotes.
Access Point ACTIVE
PWR/ALARM
Green
Green
x Interface is operational.
x Interface is currently the active NIC in the sys-
tem.
x There are is at least one connected remote.
Remote ACTIVE
PWR/ALARM
Green
Green
x Interface is operational.
x Interface is currently the active NIC in the sys-
tem.
x The interface is connected to an access point.