Cabletron Systems 2E43-51 Environmental Requirements, INPUT/OUTPUT Ports, COM Pinout Assignments

Appendix A: Specifications

A.4 ENVIRONMENTAL REQUIREMENTS

Operating Temperature:	5°C to 40°C (41°F to 104°F)
Storage Temperature:	-30°C to 73°C (-22°F to 164°F)
Operating Relative Humidity:	5% to 90% (non-condensing)

A.5 INPUT/OUTPUT PORTS

ENET 1 through ENET 4 (ports 1 through 4):

Ethernet (10BASE-T compliant) with RJ21 type connectors. Each connector provides connection for 12 twisted pair ports.

Slots for optional Fast Ethernet	Slots accept three types of optional Fast
Interface Modules	Ethernet Interface Modules:
(ports 5 and 6):	FE100-TX, FE100-FX, and FE100-F3.
Slot for optional HSIM:	Slot accepts optional High Speed
	Interface Modules.

A.6 COM PINOUT ASSIGNMENTS

The COM port is a serial communications port that supports Local Management or connection to a UPS.

Table A-1shows the COM port pin assignments.

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

A-2 2E43-51/2E43-51R User’s Guide