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1.1.4
GX Modem Unit (GMU)
The GMU is the modem in the system. The GMU comes in a 19" rack version.
The GMU has the following interfaces and switch:
Control via ACU
• 8 + 2 ports, one active for modem control and user equipment.
• 3 x F connectors for Rx and Tx cables (75 Ohm) to ACU (Rx2 not active)
• RS-422 interface for modem control.
• 2 x RS-232 interfaces, one for modem control, one not active.
• I/O connector for Tx Mute and Rx Lock.
• Ground wing nut.
• AC Power connector.
• On/Off power switch (at the front).
1.1.5
Satellite type approvals
For a list of satellite type approvals see Appendix E, Approvals.
1.1.6
Service activation
Before you can start using the FV-110GX, you need to activate the system for the GX
service. Contact your service provider for activation.
Rx In
Tx Out
Ground
Figure 1-8: GMU (connector panel)
Tx Mute &
RS-232
RS-422
Rx Lock
FV-110GX system
AC Power
1-7
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