3Com DIA3CV1100-02 manual Female RJ-21 Connector

22Visitor and Community Network Access Concentrator Installation Guide

Table 4 Pin Assignment for the RJ-21 Connector (continued)

VCN AC Port No.	First Pin	Second Pin
5	5	30
6	6	31
7	7	32
8	8	33
9	9	34
10	10	35
11	11	36
12	12	37
13	13	38
14	14	39
15	15	40
16	16	41
17	17	42
18	18	43
19	19	44
20	20	45
21	21	46
22	22	47
23	23	48
24	24	49

Figure 13 depicts the pin numbering scheme on the female RJ-21 connectors which are used on both the “TO PBX” and the “From Access Points” ports on the VCN AC.

Figure 13 Female RJ-21 Connector

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