Appendix A Technical specifications 91

ADSL WAN interface card

The ADSL Annex A and Annex B WAN interface cards have a single RJ-11 connector that provides the signals needed to interface to the ADSL-provisioned telephone line.

Figure 37 shows the ADSL WAN interface card.

Note: The ADSL Annex A and ADSL Annex B cards look identical.

Figure 37 ADSL WAN interface card

ADSL

RX/TX

CONN

Included in the accessory box with the ADSL WAN interface card is a 7-foot cable to attach to the DSLAM.

The Annex A cable is an RJ-11 to RJ-11 cable.

The Annex B cable is an RJ-11 to RJ-45 cable.

Table 26 provides the pinouts for the ADSL Annex A cable.

Table 26 ADSL Annex A cable pinouts

Pin

Function

 

 

1

N/C

 

 

2

Tip

 

 

3

Ring

 

 

4

N/C

 

 

Nortel VPN Router Installation — VPN Router 2750

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Nortel Networks 2750 manual Adsl WAN interface card, Adsl Annex a cable pinouts, Pin Function