User's Manual

MDS 05-6399A01, Rev. D MDS Master Station 19
Table 2-4 Module Descriptions
Module Name ID Function
Power Supply 1,
Power Supply 2
6843: (12-36 Vdc)
6844: (+/- 36-75 Vdc)
6845: (125 Vdc)
6755: (110/220 Vac)
Provides operating power based on a variety of AC and
DC input options. Up to two power supply modules may be
installed in the chassis (AC or DC; any combination. In a
redundant configuration, both power supplies work in
tandem and are independent of which radio is currently
active.
Platform Manager 6834 Provides management and data interface functions.
Radio A,
Radio B
6846 (SDM9) Single or redundant full duplex SD Master radios.
Alarm/Relay Module 6847
6848
Redundant—Active radio RF relay and alarm/audio
interface.
Non-redundant—Alarm and audio interface.
Duplexer 6837 Internal RF duplexer (if equipped). Allows simultaneous
transmission and reception of signals on separate TX/RX
frequencies, using a single antenna.
2.4 Rear Antenna Connections
Figure 2-3. MDS Master Station, Rear Panel
Showing Antenna Connection & Heatsink
(Other configurations possible for external items such as duplexer or cavity filter)