Strata CTX

RDTU3

RJ45 Jack

Connecting two RDTU3 PCBs

Cross-Pinned, RJ45 Modular Cord

 

Pin

 

 

Pin

 

1

 

 

T

T

 

5

 

 

 

R

R

 

 

2

 

 

 

4

 

 

 

T

T

 

 

5

 

 

 

2

 

 

 

R

R

 

 

4

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ferrite Core

(655 ft. max. CAT5 wire)

T1

RDTU Installation

PBX or CTX

RDTU3 or other

T1 interface

T1

RJ45 Jack

Connector Head

Bottom Side Up

4

5

3

6

2

7

1

8

RJ45 Cross Pinning

 

 

 

 

Front

1

T

 

 

T

1

 

 

 

 

 

 

 

 

 

 

2

R

 

 

R

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

R

 

 

R

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

4

 

 

 

 

 

 

 

 

 

 

 

5

T

 

 

T

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

6

1

8

 

7

 

 

 

 

7

8

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

Pin 1

of one end to Pin 5 of other end - each direction

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin 2

of one end to Pin 4 of other end - each direction

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Front

6565

1 8

To make a Cross-Pinned Modular Cord on a existing straight through cord:

On one end only, swap Pin 1 with Pin 5 and then Pin 2 with Pin 4.

Figure 8-4 Required Cables/Connectors for RDTU Connection at Distances of Less than 655 (200 Meters)

Strata CTX I&M 06/04

8-7

Page 315
Image 315
Toshiba CTX28 manual Connecting two RDTU3 PCBs