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COM Port Pinout Assignments
Specifications A-3
A.3 COM PORT PINOUT ASSIGNMENTS
The COM port is a serial communications port that supports Local Management or connection to a
UPS. Refer to Table A-3 for the COM port pin assignments.
A.4 REGULATORY COMPLIANCE
This equipment meets the safety and electromagnetic compatibility (EMC) requirements listed in
Table A-4:
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
Table A-4 Compliance Standards
Compliance Standards
Safety UL 1950, CSA C22.2 No. 950, 73/23/EEC,
EN 60825, EN 60950, and IEC 950
Electromagnetic Compatibility (EMC) FCC Part 15, CSA C108.8, 89/336/EEC, EN 55022,
EN 61000-3-2, EN 61000-3-3, EN 55024,
AS/NZS 3548, and VCCI V-3