Black Box 24 port User Manual

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Black Box Console Server user guide
126
RJ45 RS232 serial ports 
The RS232 RJ45 serial ports are 8-pin shielded and surge-suppressed to 15KV. Note 
that DCD is an input.
The pinouts are shown in 
.
shielded 
RJ45 pinouts 
RJ45 pinouts 
(serial ports)
Notes:
1. P/GND means Protective (Chassis) Ground
2. S/GND means Signal Ground
Pin locations RJ45 connectors
The pins in all the RJ45 connectors (front and rear panels) are located at the bottom, 
with pin 1 on the right;
Pin
Circuit
Direction
Function
1
DCD
Input
Data Carrier Detect
2
DSR
Output
Data Set Ready
3
DTR
Input
Data Terminal Ready
4
S/GND
Signal Ground
5
TXD
Output
Transmit Data
6
RXD
Input
Receive Data
7
CTS
Output
Clear To Send
8
RTS
Input
Request To Send
Shield P/GND 
Protective (Chassis) Ground