Appendix F: Serial Port Wiring - NetComm NTC-6200 Series User Manual

Appendix F: Serial port wiring

The NTC-6200 Series router has a serial interface and acts as the data communications equipment (DCE). The wiring tables below
indicate the DCE and DTE devices as well as the signal direction. Shielding cable can optionally be soldered to the chassis and
connected to ground.
DTE DEVICE (COMPUTER)
PIN NAME
1 DCD
2 RXD
3 TXD
4 DTR Data Terminal Ready
5 GND
6 DSR
7 RTS
8 CTS
9 RI
- FGND Shield (Soldered to D9 metal shield)
NetComm Wireless 3G M2M Router / Plus
138
Pin 1
Pin 6
Figure 147 - DE9 Male connector (Pin side view)
DESCRIPTION
Data carrier detect
Receive Data
Transmit Data
Ground
Data Set Ready
Request to Send
Clear to Send
Ring Indicator
Table 42 - RS-232 Wiring
RS-485 HALF DUPLEX WIRING
PIN SIGNAL
1 —
2 +
5
Table 43 - RS-485 Half Duplex Wiring
RS-485 (RS-422) FULL DUPLEX WIRING
PIN SIGNAL NAME
1 — RXA
2 + RXB
3 + TXB
4 — TXA
5 GND
Table 44 - RS-485 (RS-422) Full Duplex Wiring
DCE DEVICE (NTC-6200 ROUTER)
SIGNAL
DIRECTION
DESCRIPTION
Data carrier detect
Receive Data
Transmit Data
Data Terminal Ready
Data Set Ready
Request to Send
Clear to Send
Ring Indicator
Shield (Soldered to D9 metal shield)
NAME DESCRIPTION
A Differential pair A
B Differential pair B
GND Ground
DESCRIPTION
Receive (Differential pair A)
Receive (Differential pair B)
Transmit (Differential pair B)
Transmit (Differential pair A)
Ground
Pin 5
Pin 9
NAME
DCD
RXD
TXD
DTR
Ground GND
DSR
RTS
CTS
RI
FGND
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PIN
1
2
3
4
5
6
7
8
9
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