Digital Add-On Module Installation - Toshiba Strata DK14 Installation And Maintenance Manual

Digital Add-on Module Installation

Install one or two DADM 2020s to a 2000-series digital telephone (only).
DK14 supports up to 8 DADMs
DK40i supports up to 12 DADMs
The number of DADMs supported by the DK424 depends on the common control PCB:
RCTUA supports 12 DADMs
RCTUB supports 40 DADMs
RCTUC/D supports 120 DADMs
RCTUE/F supports 200 DADMs
The DADM provides DSS buttons, speed dial
buttons and CO line buttons.
Notes
See Chapters 1, 3 or 5 – DK14, DK40i or
DK424 Installation for loop length and
secondary protection requirements.
DADMs cannot be installed on telephones that
have RPCI-DI on OCA/DVSU installed.
To install DADMs
See Figure 9-20 and follow these steps:
1. Loosen the four captive screws on the 2000-
series digital telephone base and remove the
base.
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 DKT2000 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 2-pair house cable (or external power) and 2-
pair modular cord, supplied with DADM. (See Chapter 8 – DK40i/DK424 Universal 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.
Strata DK I&M 5/99
Station Apparatus
Digital Add-on Module Installation
1870
9-29