Station Apparatus

Digital Add-on Module Installation

Digital Add-on Module Installation

The DADM provides 20 buttons that can be flexibly programmed for any telephone feature that is provided by the Strata CTX system. There are two DADM models available—DADM3020 and DADM3120. The differences are shown in Table 11-8.

Table 11-8 DADM Comparison

Add-on Module

DADM3020

DADM3120

 

DKT3010-S/20-S/10-SD/20-SD,

IPT1020-SD,

Telephone to be connected

DKT3010-S/20-S/10-SD/20-SD,

DKT3014-SDL

 

DKT3014-SDL

 

 

 

 

 

Color of DADM

Black, white

Black

 

 

 

Power Source of ADM

24 VDC

5 VDC

Circuit

 

 

 

 

 

Install one or two DADM to a Toshiba digital telephone (only) (shown at right) or an IP telephone. The digital telephone and the DADM must belong to the same series, i.e., 3000- or 2000-series. IPT1020-SD telephones can only be connected to a DADM3120.

See the appropriate system Installation Chapter for loop length and secondary protection requirements.

DADMs cannot be installed on telephones that

5843

have BPCI, BVSU or DVSU installed.

To install DADMs

See Figure 11-15and follow these steps:

1.Loosen the four captive screws on the digital telephone base and remove it.

2.Remove the base handset hanger.

3.Loosen two captive screws on DADM and remove bases.

4.Put the DADM supplied cable through the telephone and DADM bases.

5.Connect DADM cable connectors to P1 of DADM and P1 of DKT telephone.

6.Install base of DADM and telephone – tuck DADM cable into DADM and telephone base, as necessary, for proper length.

7.Secure DADM to telephone base with DADM connecting plate (using four screws).

8.If required to achieve maximum distance, install two-pair house cable (or external power) and two-pair modular cord, supplied with DADM. (See Chapter 10 – MDF PCB Wiring.)

9.If a second DADM should be installed, connect P1 of the second DADM to P2 of the first DADM with the DADM connecting cable.

Station Apparatus

Strata CTX I&M 06/04

11-21

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Toshiba CTX28 Digital Add-on Module Installation, 11-21, To install DADMs, Dadm Comparison Add-on Module DADM3020 DADM3120