MDS 05-6399A01, Rev. E MDS™ Master Station 87
Table 6-13. 6846 SDM4 Radio Module Specifications
Frequency Band
400-450MHz (SDM4B)
450-512MHz (SDM4C)
Duplex Modes
Full
Half Duplex, Switched Carrier
Half Duplex, Single Carrier (Simplex)
Half Duplex modes may operate using software enabled
integrated T/R switch for installations that do not require a
duplexer.
Transmit Power
+41.1dBm, Maximum. Software programmable from
Receive Noise Figure
<6dB with AGC at maximum gain
Adjacent Channel Rejection
60dB, minimum (EN300-113)
Power Consumption
60W, Max, at full duplex with continuous transmit,
+40dBm
Antenna Connector
Dual FAKRA-SMB
6.5 Alarm and Alarm/Relay Modules
Figure 6-8 Alarm/Relay Module
(Part No. 03-6847Axx; 03-6848Axx)
There are 2 versions of the Alarm Module depending on whether the system is redundant or
non-redundant. The module pictured above is for redundant systems.
Table 6-14. Alarm Modules
Part Number Description System Interfaces and Indicators
03-6847Axx
Alarm/Relay
Module
Redundant
RX/TX RF Connection for Radio A, Radio B, and OUT.
Relay to switch RF OUT based on active A or B.
Toggle Switch to select active A/B or Auto
Alarm and Active LEDs
Alarm/Audio Connector
03-6848Axx Alarm Module Non-Redundant
Does not include RF Connections
Does not include Relay
Does not include Toggle Switch
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