Appendix B Connectors and Cables
Cable and Adapter Specifications
B-12
Catalyst 2950 Desktop Switch Hardware Installation Guide
78-11157-05
Port 10 Tip
10
35
Port 10 Ring
Port 11 Tip
11
36
Port 11 Ring
Port 12 Tip
12
37
Port 12 Ring
Port 13 Tip
13
38
Port 13 Ring
Port 14 Tip
14
39
Port 14 Ring
Port 15 Tip
15
40
Port 15 Ring
Port 16 Tip
16
41
Port 16 Ring
Port 17 Tip
17
42
Port 17 Ring
Port 18 Tip
18
43
Port 18 Ring
Port 19 Tip
19
44
Port 19 Ring
Port 20 Tip
20
45
Port 20 Ring
Port 21 Tip
21
46
Port 21 Ring
Port 22 Tip
22
47
Port 22 Ring
Port 23 Tip
23
48
Port 23 Ring
Port 24 Tip
24
49
Port 24 Ring
No connect
25
50
No connect
Table B-1
RJ-21 Cable Pinouts on the Catalyst 2950ST-24 LRE and
Catalyst 2950ST-24 LRE 997 Switches (continued)
Function
Pin
Pin
Function
