A.2 com port pinouts – Cabletron Systems NBR-420 User Manual
Page 55
Appendix A: NBR Specifications
Page A-2
NBR-SERIES Installation Guide
A.2 COM PORT PINOUTS
COM 1 PORT PINOUTS
COM 2 PORT PINOUTS
COM PORT (NBR-220 Only) PINOUTS
Type:
Standard RJ45 port
Pin 1
Transmit Data (XMT)
From COM 1 Port
2
Data Carrier Detect (DCD)
From COM 1 Port
3
Data Set Ready (DSR)
To COM 1 Port
4
Receive Data (RCV)
To COM 1 Port
5
Signal Ground (GND)
6
Data Terminal Ready (DTR)
From COM 1 Port
7
Request To Send (RTS)
To COM 1 Port
8
Clear To Send (CTS)
Type:
Standard RJ45 port
Pin 1
Transmit Data (XMT)
From COM 2 Port
2
Data Carrier Detect (DCD)
From COM 2 Port
3
Data Set Ready (DSR)
To COM 2 Port
4
Receive Data (RCV)
To COM 2 Port
5
Signal Ground (GND)
6
Data Terminal Ready (DTR)
From COM 2 Port
7
Request To Send (RTS)
To COM 2 Port
8
Clear To Send (CTS)
Type:
Standard RJ45 port
Pin 1
Transmit Data (XMT)
From COM Port
2
Data Carrier Detect (DCD)
From COM Port
3
Data Set Ready (DSR)
To COM Port
4
Receive Data (RCV)
To COM Port
5
Signal Ground (GND)
6
Data Terminal Ready (DTR)
From COM Port
7
Request To Send (RTS)
To COM Port
8
Clear To Send (CTS)