Ericsson RBS 2106 Reference Manual page 133

The ddTMA is a narrow-band product and is available in a number of
versions depending on the frequency band to be used.
A bias-injector is used to feed the ddTMA with 15 V DC.
The unit has two 7/16 socket connectors, see figure below.
Figure 62
Table 68
Unit
ddTMA
Bias-Injector
The bias-injectors are used to provide the TMA with DC power from
the TMA-CM, over the RX/TX feeder cables. The bias-injector is
mounted between the antenna feeder and the CDU.
TMA-CM
Six bias-injectors can be connected to one TMA-CM.
The TMA-CM can be mounted either externally, as in the RBS 2202;
or internally, as in the RBS 2206.
EN/LZT 720 0008 P2A
2001-11-28
ANT
Unit of measurement: mm
Dimensions of ddTMA
Weight
4 kg without mounting
bracket
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— All Rights Reserved —
Product Data RBS 2206
1 1 7
1 0 0
TX/RX
Dimensions
height 298 mm
width 117 mm
depth 100 mm
P004347A
131 (485)