Appendix A: Specifications
A-2
DLE28-MA User’s Guide
A.4
INPUT/OUTPUT PORTS
DLE28-MA
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 24
Ethernet (10BASE-F compliant) with
ST type connectors.
Slots for optional Fast Ethernet
Interface Modules
(ports 25 and 26)
Slots accept three types of optional
Fast Ethernet Interface Modules: the
DELTX-UI, DELFX-UI and the
DELF3-UI.
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
