ISDN Interfaces

BPTU and RPTU Cabling

Cable Installation

Use the Toshiba RPRI cable kit to connect the BPTU or RPTU PCB to a CSU. Install the kit as shown in Figure 7-6.

ISDN PRI

Network

Jack

RJ45

A

B

 

CSU

 

 

 

DB15

 

DB15

(female)

 

(male)

 

 

 

 

 

 

6645

C

D

E

BPTU or

RPTU

Item

Description

A1

Fifteen feet of CAT5 unshielded cable

BOne DB15 modular adapter (CSU to network jack)

COne DB15 modular adapter (CSU to RPTU)

D1

Thirty feet of CAT5 shielded cable

EOne Ferrite core

1.Cable A and D are straight-pinned data cables, not cross- pinned telephony cables.

CSU Local Power

Adapter

Network

 

 

 

 

 

 

Interface

1-T1

1

1

1

3

2-R1

2

2

2

11

Jack

3-

 

3

3

3

 

 

 

 

RJ48-C

4-R

4

4

4

9

5-T

5

5

5

1

or

6-

 

6

6

6

 

RJ48-X

 

 

7-Nu

7

7

7

 

(8-pin

 

8-Nu

8

8

8

 

Modular)

 

 

 

 

 

 

 

Toshiba-supplied 8-wire modular cord, straight-through pinning (15 ft. CAT5, unshielded)

3-T1

11-R1

3-

9-R

1-T

CSU DB15 Male

C S U

3-T1

11-R1

3-

9-R

1-T

CSU

DB15 Female

6646

 

 

 

 

 

 

 

3

1

1

1

1-T1

 

 

11

2

2

2

2-R1

 

 

 

3

3

3

3-

BPTU or

9

4

4

4

4-R

RPTU

1

5

5

5

5-T

8-pin

 

6

6

6

6-

 

Modular

 

7

7

7

7-Nu

 

Jack

 

8

8

8

8-Nu

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Toshiba-supplied Ferrite core

Toshiba-supplied 8-wire

Toshiba-supplied 8-pin modular

Dealer-supplied CSU

 

cord to DB15 female adapter

 

.

Network Jack/BPTU or RPTU Modular Jack

PinFunction

1Tip – Receives from the network (NT – TE)

2Ring – Receives from the network (NT – TE)

3Not Used

4Tip – Transmits to the network (TE – NT)

5Ring – Transmits to the network (TE – NT)

6Not Used

7Not Used

8Not Used

modular cord, straight-through pinning (30 ft. CAT5, shielded)

Toshiba-supplied 8-pin modular to DB15 male adapter

Figure 7-6 Detailed Pinouts for ISDN PRI Cabling

7-12

Strata CTX I&M 06/04

Page 278
Image 278
Toshiba CTX28 manual Cable Installation, Fifteen feet of CAT5 unshielded cable