Interfaces of the SAILOR 900 VSAT ACU
98-133966-G1
Chapter 4: Interfaces
4-5
4444
Interf
aces
Recommended NMEA 0183 cable:
Two-wire constructed with one enclosed shield
Network signal pair:
• Size: No. 24 AWG (0.24 sq. mm) or heavier
• Characteristic impedance: 95 - 140 Ohm
• Propagation delay: 5 nanoseconds per meter, maximum
• 15 Twists (minimum) per meter
4.1.7
RS-232 and RS-422 connectors
These connectors are used to access and configure the connected VSAT
modem and for ACU control. See the VSAT modem requirements for use
of the RS-232 or RS-422 connector.
Outline (on the ACU)
Pin
number
Pin function
1
Not connected
2
RXD
3
TXD
4
DTR
5
Ground
6
DSR
7
RTS
8
CTS
9
Receive Signal Strength
Indicator
Table 4-5: RS-232 connector, male, outline and pin assignment
1 5
6 9
SAILOR900TM.book Page 5 Monday, September 16, 2013 11:01 AM
Summary of Contents for Sailor 900 VSAT
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