Lre Port - Cisco Catalyst 2950 Hardware Installation Manual

Appendix B Connectors and Cables

LRE Port

78-11157-05
Figure B-2 RJ-45 Pinouts for 10/100/1000 and 1000BASE-T GBIC Module Ports
Pin Label
1 TP0+
2 TP0-
3 TP1+
4 TP2+
5 TP2-
6 TP1-
7 TP3+
8 TP3-
The LRE port uses a single 50-pin RJ-21 connector, as shown in
LRE port uses two pins. Because the Catalyst 2950ST-24 LRE and
Catalyst 2950ST-24 LRE 997 switches use 48 pins, pin 25 on the top row and
pin 50 on the bottom row are not used
The Catalyst 2950ST-8 LRE switch uses only 16 pins. Pins 9 through 25 on the
top row and pins 34 through 50 on the bottom row are not used.
Figure B-3 RJ-21 Connector
25
50
Catalyst 2950 Desktop Switch Hardware Installation Guide
Connector Specifications
1 2 3 4 5 6 7 8
1
26
Figure B-3. Each
B-5