Toshiba Strata DK40 - External Power Straps; DKT2000 ADM Installation; Electronic Telephone Upgrades; Off-Hook Call Announce Upgrade (HVSU2 or HVSU;HVSI)

Station Apparatus Electronic Telephone Upgrades
5-16
Strata DK40 I&M Manual Spring 1999
Refer to the Strata DK40 Programming Manual or DK Library CD-Rom for more details.
External Power Straps
Digital telephones equipped with options such as integrated data interface units and ADMs
require two-pair wiring or external power to operate efficiently at the maximum-allowed
distance from the KSU. Two-pair wiring or external power is also necessary for maximum
cable run lengths for digital telephones that are connected to systems that must operate with
reserve power. (See “Digital Telephone/DDSS Console/ADM/Loop Limits” on Page 2-53 for
more information.)
Each digital telephone has two external power straps which must be cut for external power
when the cabling of the telephone is connected to an external AC/DC power supply.
➤ To cut the straps
1. Loosen the four captive screws securing the telephone base (Figure 5-1), and remove the
base.
2. Depending on the telephone, locate the W101 and W102 external power straps and cut
them (see Figures 5-6, or 5-7).
3. Reinstall the telephone base, and secure it with its four captive screws.
Note
Refer to Chapter 4 – DK40 Universal Slot PCB Wiring for external AC/DC power
supply ordering information and installation instructions.
DKT2000 ADM Installation
See “Digital Add-on Module Installation” on Page 5-29 for more information.
Electronic Telephone Upgrades
This section describes how to upgrade and configure electronic telephones for features and
options.
Off-hook Call Announce Upgrade (HVSU2 or HVSU/
HVSI)
Electronic telephones must be equipped with either the HVSU2 subassembly or the
combined HVSU and HVSI subassemblies to receive Speaker Off-hook Call Announce
(OCA) calls. These telephones also require three-pair wiring to receive speaker OCA, instead
of the standard two-pair. Telephones making speaker OCA calls do not require an upgrade or
extra wire pair.
Notes
◆
See Notes in “Telephone Speaker Off-hook Call Announce Upgrade (DVSU)” on
Page 5-8.
◆
Handset OCA is not available on electronic telephones.