COM Port Pinout Assignments
The COM port is a serial communications port for local access to Local Management. Refer to
Table
A‐15 for the COM port pin assignments.
Table A-15 COM Port Pin Assignments
Pin
1
2
3
4
5
6
7
8
Regulatory Compliance
The 7GR4270‐12, 7GR4202‐30, 7GR4280‐19, and 7KR4290‐02 meet the safety and electromagnetic
compatibility (EMC) requirements listed in Table
Table A-16 Compliance Standards
Regulatory Compliance
Safety
Electromagnetic Compatibility (EMC) 47 CFR Parts 2 and 15, CSA C108.8, 2004/108/EC, EN 55022, EN
Signal Name
Transmit Data (XMT)
Data Carrier Detect (DCD)
Data Set Ready (DSR)
Receive Data (RCV)
Signal Ground (GND)
Data Terminal Ready (DTR)
Request to Send (RTS)
Clear to Send (CTS)
A‐16:
Standards
UL 60950, CSA C22.2 No. 60950, 2006/95/EC, EN 60950, IEC
60950, EN 60825, 21 CFR 1040.10.
61000-3-2, EN 61000-3-3, EN 55024, AS/NZS CISPR 22, VCCI
V-3.
Matrix DFE-Diamond Series Installation Guide A-7
COM Port Pinout Assignments
Input/Output
Output
Output
Input
Input
NA
Output
Input
NA
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