Cabletron Systems Environmental Module TM 9C300-1 - Manual (Page 19)

3-7
Out-of-Band Management
COM1 and COM2 Ports
The 9C300-1 Environmental Module front panel has two RJ-45 communication
ports for RS-232 serial communication to and from the MMAC-Plus. Figure 3-5
illustrates a single RJ-45 communication port connector. COM1 and COM2 can be
configured to run the Serial Line Internet Protocol (SLIP), Point-to-Point Protocol
(PPP), Local Management via a terminal or modem connection, or monitor an
American Power Conversion Smart UPS. Refer to the Local Management Manual
for detailed information on configuring the COM1 or COM2 port.
Figure 3-5. RJ-45 Communication Port Connector
Table 3-1 details the pinout connections for an RJ-45 communication port
connector.
Table 3-6. Pinout Connections RJ-45 Communication Port Connector
Pin Description
1 TRANSMIT
2 DATA CARRIER DETECT
3 DATASET READY
4 RECEIVE
5 SIGNAL GROUND
6 DATA TERMINAL READY
7 REQUEST TO SEND
8 CLEAR TO SEND
Pin 1