NEC NEAX2400IMX system manual General Service Conditions, Cable Distance Definition

Models: NEAX2400IMX

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OVERVIEW

General Service Conditions

As shown in Figure 1-4, the cable distance allowed includes the 25-pair installation cable.

 

Station Wire

 

PBX

0.4 mm (.051 in) (26 AWG)

 

0.5 mm (.019 in) (24 AWG)

 

 

 

Champ

MDF

DSS Console

 

 

Connector

25-Pair installation cable

Rosette

 

 

Cable Distance between PBX and DSS

 

REAR VIEW

 

 

Figure 1-4 Cable Distance Definition

5.General Service Conditions

The following service conditions apply to both a DSS/BLF and Add-On Module.

1.A DSS/BLF and an Add-On Module can coexist on one circuit card. Figure 1-5illustrates an example of port allocation on an ELC circuit card.

ELC

ADM

Dterm

Dterm

Dterm

ADM

Dterm

LV

7

6

5

4

3

2

1

Dterm

...

NEC

 

 

... ...

 

 

... ... ...

 

 

... ... ... ...

 

1

... ... ... ...

4

 

2

 

5

3

7

...

8

 

6

0

9

 

#

 

No terminal can be wired to this port.

 

 

 

Dterm

 

1

...

NEC

ADM

 

... ... ...... ... ...... ... ... ...

 

 

 

... ... ...

 

 

4

2

 

 

 

5

3

 

 

7

...

 

 

 

8

6

 

 

0

9

 

 

 

 

#

 

 

 

Dterm

...

NEC

 

 

... ...

 

 

... ... ...

 

 

... ... ... ...

 

1

... ... ... ...

4

 

2

 

5

3

7

...

8

 

6

0

9

Dterm

#

 

...

NEC

4

1

2

... ...

ADM

...... ... ...... ... ...... ... ...

 

 

 

... ... ... ...

 

 

5

 

3

 

7

6

...

 

8

 

 

 

0

9

 

 

 

#

 

 

 

DSS/BLF

DSS/BLF

0

Figure 1-5 Example of Port Allocation on an ELC Card

2.DSS consoles, their associated Dterms, and stations which are to be assigned to the DSS keys must belong to the same Inter Module Group.

CHAPTER 1

ND-70684 (E)

Page 6

Revision 1.0

Page 14
Image 14
NEC NEAX2400IMX system manual General Service Conditions, Cable Distance Definition