Enterasys Networks Fast Network 10 - Manual (Page 115)

Serial Cable Pin Assignments
Fast Network 10 User Guide Page A-3
A.2 SERIAL CABLE PIN ASSIGNMENTS
For a PC running a Windows terminal connected to the RS232C Network
Management Port on the front panel of the FN10, the following serial
cable pin assignments are required to manage the FN10 using the Local
Console Manager (LCM).
A.3 10BASE-T PIN ASSIGNMENTS
An Ethernet twisted-pair link segment requires two pairs of wires. Each
wire pair is identified by solid and striped colored wires. For example, one
wire in the pair might be red and the other wire, red with white stripes.
Connectors
Refer to the diagram below and note how the pins are numbered. Be sure
to hold the connectors in the same orientation when connecting the wires
to the pins.
Figure A-1 Connector Pin Numbers
Each twisted-pair link segment must have a male connector attached to
both ends. According to the 10BASE-T specification, pins 1 and 2 on the
connector are used for transmitting data; pins 3 and 6 are used for
receiving data, as shown in Table A-1.
DB-9 (male) to the FN10
(female)
PC DB-9 (female) 25-pin (female)
Pin 2 (Rx) Pin 2 Pin 3
Pin 3 (Tx) Pin 3 Pin 2
Pin 5 (Ground) Pin 5 Pin 7
1
8
8
1