98-175666-C
3-1
Chapter 3
Interfaces
3
3.1 Connector panel of the BDU
3.1.1 AC input connector
Connect the power cable to the AC power connector.
3.1.2 ADU connector
There is just one cable from the BDU to the ADU. This is used to power the ADU, supply
10 MHz clock, handle all communication between BDU and ADU, and deliver the VSAT
Rx and Tx signals.
Figure 3-1: BDU: connector panel
Outline (on the BDU)
Voltage range
100–240 VAC
Table 3-1: AC power connector
Earth
N
P
Outline
(on the BDU)
Conductor
Pin function
Inner
DC to ADU
10 MHz clock to ADU
BDU to ADU internal communication
VSAT Rx/Tx
Outer
GND (Shield)
Table 3-2: N connector, outline and pin assignment
Important
Do not use TNC connectors on the ADU antenna cable
or on pigtails. TNC connectors cannot carry the DC
current for operating the ADU.
