Rs232/Rs485/Rs422 Plus Irig-B Via Rj45; Figure 22: Rj45 Port Pin-Out With Irig-B; Table 9: Rj45 Port Pin-Out - RuggedCom RuggedServer RS416 Family Installation Manual

Serial Ports

3.5 RS232/RS485/RS422 plus IRIG-B via RJ45

Each port is individually selectable via software to be RS232, RS485 or RS422. IRIG-B
signal and ground are available on pins 2 and 3, respectively, for every mode. The RJ45
port and pin-out is shown below.

Figure 22: RJ45 port pin-out with IRIG-B

Pin RS232 Mode
1 -
2
3
4
5 RXD
6 TXD
7 CTS
8 RTS
Shield

Table 9: RJ45 Port pin-out

NOTES:
1. No internal termination is provided.
2. Pins 7 and 8 are connected internally. In RS232 mode, these pins enter a high impedance state. A DTE
that asserts RTS will see CTS asserted, although the RuggedServer will not perform hardware flow
control.
3. In RS232 mode, the RJ45 ports conform mostly to EIA-561 DTE, which transmit on TXD and receive on
RXD.
The IRIG-B output on each port is configurable via software to provide IRIG-B pulse-
width modulated output (IRIG-B006 or IRIG-B007) or PPS output, a single pulse per
second on the second.
®
RuggedCom
RS485 Mode
-
+IRIG-B
Common (Isolated) Ground
Common (Isolated) Ground
3
-
3
TX/RX +
2
-
2
TX/RX-
Chassis Ground
28
RuggedServer™ RS416 Family Installation Guide rev118
RS422 Mode
RX-
RX+
TX +
-
TX-