Training, Installation & Service Manual - Livewire Connections Ltd

Interfaces of the VMU
4.2.2 Connecting an Evolution® Satellite Router
Connect the VSAT modem to the ACU as shown in the figure below:
Figure 4-8: Connecting an Evolution Satellite Router
Note
Cable 3 is only used when using OpenAMIP protocol.
For cables see Table 4-8: Cables to connect an iNFINITI® Series
Satellite Router on page 4-9. For VMU cable specifications see VMU
cable specifications on page B-1.
4.2.3 Connecting a Comtech 570 L or 625 Satellite
Modem
Connect the VSAT modem to the ACU as shown in the figure below:
Figure 4-9: Connecting a Comtech 570 L or 625 Satellite Modem
Note
If the satellite profile is configured to use narrow band tracking
(recommended) a standard RS-232 cable can be used to connect the
ACU RS-232 port to the Remote control port of the VSAT modem.
If the satellite profile is configured to use modem RSSI tracking a
proprietary RS-232/Alarm cable must be used to connect the ACU RS-
232 port to the Remote control and Alarm port of the VSAT modem.
Cable Description Cable specifications
1 RX Out to Rx 950-1950 MHz 75 Ohm coax cables F-F (1m) and adapter F to
N 50 Ohm, included
2 RS-232 to Remote control and Alarms 37-134337-A Cable Comtech Serial and RSSI
Table 4-9: Cables to connect a Comtech 570 L-Band Satellite Modem
4-10 Chapter 4: Interfaces 98-133966-E2