COMTECH 570L and ROSS box
98-150471-A02
Appendix C: VMU settings
C-17
VMU se
ttin
gs
C.4
COMTECH 570L and ROSS box
C.4.1
Protocols and interfaces
The following sections describe how to connect an ACU, a COMTECH570L VSAT modem, a
ROSS box and an Ethernet switch.
From software version 1.30 or higher the SAILOR 900 VSAT High Power supports
COMTECH ROSS ROAM protocol 1+ which includes the satellite longitude in the responses
from the ACU to the ROSS box. 1.30 also supports setting inclined orbit by entering user
defined data.
Connections
Connect the ACU and COMTECH 570L, ROSS box and Ethernet switch with the following
cables:
• Ethernet cables for TCP/IP data communication (x3)
• RS-232 console cable
• 75 Ohm RF cables F-F connectors for rx and tx frequencies.
See also cable specifications at
Modem Cable COMTECH Serial & RSSI TT7016A
Figure C-11: Connecting COMTECH 570L and ROSS box to the ACU (example)
SAILOR900HP.book Page 17 Monday, July 18, 2016 12:44 PM