Installation manual
Analogue 2-wire  HW Interfaces 
Apr 2004   45 
Appendix B  HW Interfaces 
All hardware interfaces are found at the rear of the TT-
3038G. These interfaces can be used for the Inmarsat Fleet 
services. 
The Transceiver Unit has the following additional hardware 
interfaces: 
•  Analogue 2-wire (phone/fax) RJ11 number 1 (X1) 
•  Analogue 2-wire (phone/fax) RJ11 number 2 (X2) 
•  Handset/Cradle (X4) 
•  Antenna (X6) 
•  Ethernet (X9) 
•  RS-232 (X10) 
•  4 Discreet I/O (X12) (For future use) 
•  Power input (X13) 










