Twisted-Pair Ethernet Connector - Sun Microsystems Ultra 60 Service Manual

TABLE B-2
Pin
18
19
20
21
22
23
24
25
B.2

Twisted-Pair Ethernet Connector

The twisted pair Ethernet (TPE) connector is a RJ-45 type connector located on the
motherboard back panel.
TABLE B-3
Caution – Connect only TPE cable into TPE connector.
Serial Port A and B Connector Pin Assignments (Continued)
Mnemonic Signal Name
Not connected
Not connected
DTR Data Terminal Ready
Not connected
Not connected
Not connected
TXC Terminal Clock
Not connected
FIGURE B-3
lists the connector pin assignments.
Description
None.
None.
Used to control switching of the
DCE to the communication channel.
None.
None.
None.
Generated by the DTE to provide
timing information to the DCE.
Used only in synchronous mode
and only when the driver requests a
locally generated clock. Otherwise,
TXC echoes the modem-generated
clock. The falling edge of the clock
corresponds to the center of the
data bit transmitted on TXD.
None.
illustrates the TPE connector configuration and
Appendix B Signal Descriptions B-5