Cabletron Systems pmn User Manual

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COM Port/Pin Assignments
2M46-04R/2M46-04RDC User’s Guide
A-3
A.6
COM PORT/PIN ASSIGNMENTS
The COM port is a serial communications port that supports Local 
Management or connection to a UPS. 
 shows the COM port pin 
assignments. 
A.7
REGULATORY COMPLIANCE
This equipment meets the following safety and electromagnetic 
compatibility (EMC) requirements:
Table A-3
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
Safety
UL 1950, CSA C22.2 No. 950, 
EN60950, IEC 950, and 73/23/EEC
Electromagnetic
Compatibility (EMC)
FCC Part 15, EN 55022, CSA C108.8, 
EN 50082-1, VCCI V-3, AS/NZS 3548, 
and 89/336/EEC