Non Rs-232 Serial Port Pinouts-Les1102A - Black Box LES1101A-R2 User Manual

1101 and 1102 Secure Device Servers
3.3.1 Non RS-232 Serial Port Pinouts— LES1102A
Port 2 on the LES1102A can also be software selected to be an RS-485 or RS-422 port connected through the screw terminal block (pinout
shown in Table 3-2.
RS-422 uses a full-duplex transmit on TX+/TX- pair, receive on RX+/RX- pair.
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Table 3-1. RS-232 DB9 connector pinouts.
Signal
CD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI
Table 3-2. Non RS-232 serial port pinout for the LES1102A.
Figure 3-2. Front panel of the LES1102A showing pinout connections on the left side.
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Pin Definition
1 Received Line Signal Detector
2 Received Data
3 Transmitted Data
4 Data Terminal Ready
5 Signal Ground
6 Data Set Ready
7 Request To Send
8 Clear To Send
9 Ring Indicator
1 +V DC IN
2 GND
3 RX+
4 RX-
5 TX+
6 TX-
7 +3.3V DC OUT
8 GND