GE MDS iNET 900, Reference Manual

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154 iNET Series Reference Manual 05-2806A01, Rev. J
5.1.2 COM1 Port
To connect a PC to the transceiver’s
COM1
port use a DB-9M to DB-9F
“straight-through” cable. These cables are available commercially, or
may be constructed using the pinout information in Figure 5-2 and
Table 5-2.
Figure 5-2. COM1 Port (DCE)
(Viewed from the outside of the unit.
)
5.1.3 COM2 Port
To connect a PC to the transceiver’s
COM2
port use a DB-9F to DB-9M
null modem “crossover” cable. These cables are available commer-
cially, or may be constructed using the pinout information in Figure 5-3
and Table 5-3.
Figure 5-3. COM2 Port (DTE)
Viewed from the outside of the radio
Table 5-2. COM1 Port Pinout, DB-9F/RS-232 Interface
Pin Functions DCE
1 Unused
2 Receive Data (RXD) <— [ Out
3 Transmit Data (TXD) —> [ In
4 Unused
5 Signal Ground (GND)
6–9 Unused
Table 5-3. COM2 Port, DB-9M/EIA-232 Interface
Pin Functions DTE
1 Data Carrier Detect (DCD) In]<—
2 Receive Data (RXD) In]<—
3 Transmit Data (TXD) Out]—>
4 Data Terminal Ready (DTR) Out]—>
5 Signal Ground (GND)
1 5
9 6
5
1
6
9