SERIES II INTELLIGENT DATA/FAX MODEMS

The following cables are for 2-wire and 4-wire leased line connections using screw connectors.

1

2

3

Red (Tip)

Green (Ring)

4

 

5

To Terminal-Block Screws

 

6

(Transmit and Receive)

RJ-11 plug

 

Figure I-3. Two Wire Leased Line Connection

3

Red

 

 

Green

Transmit Pair

 

4

 

 

Yellow

 

 

2

 

 

 

 

Black

Receive Pair

 

5

 

 

 

 

 

To Terminal-Block Screws

(Transmit and Receive)

RJ-11 plug

Figure I-4. Four Wire Leased Line Connection

(336+ [MD1640A] Only)

188

Page 189
Image 189
Black Box MD1641A, MD1640A manual 188