Mediatrix 3621 Hardware Installation Manual - Rj-11 (Telephone) Cable

Appendix B - Cabling Considerations

RJ-11 (Telephone) Cable

34

Mediatrix 3600 – Digital Gateway

RJ-11 (Telephone) Cable

The RJ-11 cable is commonly used for telephone connection.

Wiring Conventions

For telephone connections, a cable requires one pair of wires. Each wire is identified by different colours. For 

instance, one wire might be red and the other, red with white stripes. Also, an RJ-11 connector must be 

attached to both ends of the cable.

Each wire pair must be attached to the RJ-11 connectors in a specific orientation. The following figure 

illustrates how the pins on the RJ-11 connector are numbered. Be sure to hold the connectors in the same 

orientation when attaching the wires to the pins.

Figure 16: 

RJ-11 Connector Pin Numbers

The RJ-11 pair of wires is wired so that pins 3 and 4 are connected to the Ring and Tip, which meets the 

following requirements:

EIA/TIA-IS 968

CS-03 Issue 8, Part III requirements.

Caution: 

Do not plug a phone jack connector into an RJ-45 port.

Table 18: 

RJ-11 Pinout Information

Pin #

Function

1

Not used

2

Not used

3

Ring

4

Tip

5

Not used

6

Not used

Warning: 

The RJ-11 cable should comply with UL 1863 and CSA C22.2 No 233 standards.