A.4 input/output ports, A.5 com port pinout assignments – Cabletron Systems Expansion module 6H122-08 User Manual
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Appendix A: Specifications
A-2
6H122-08 User’s Guide
A.4
INPUT/OUTPUT PORTS
6H122-08 Specifications
A.5
COM PORT PINOUT ASSIGNMENTS
The COM port is a serial communications port that supports Local
Management or connection to a UPS.
The COM port has the following pin assignments:
Ports 1 through 6
Fast Ethernet 10/100 Mbps
(100BASE-TX compliant) with RJ45
type connectors.
Slots for optional Fast Ethernet
Interface Modules
(ports 7 and 8)
Slots accept three types of optional Fast
Ethernet Interface Modules: the
FE100-TX, FE100-FX and the
FE-100F3.
Table A-1
COM Port Pin Assignments
Pin
Signal Name
Input/Output
1
Transmit Data (XMT)
Output
2
Data Carrier Detect (DCD)
Output
3
Data Set Ready (DSR)
Input
4
Receive Data (RCV)
Input
5
Signal Ground (GND)
NA
6
Data Terminal Ready (DTR)
Output
7
Request to Send (RTS)
Input
8
Clear to Send (CTS)
NA