Station Apparatus
7-4
Strata CTX I&M September 2002
CAUTION!
When installing the station cable, do not run the cables parallel if they are within
three feet of an AC power line. AC power lines should be crossed at right (90
°
)
angles only. In particular, avoid running station wire pairs near devices that
generate electrical noise, such as neon or fluorescent light fixtures.
CAUTION!
Avoid using cleansers that contain benzene, paint thinner or alcohol on the rubber
feet. The color of the rubber may transfer to the desk or mounting surface. If you do
use this type of cleanser on the desk or mounting surface, wipe it with a cloth and
make sure that it is completely dry.
Digital telephones connect to the digital telephone ports via the MDF with standard twisted-pair
jacketed telephone cable. If using CW1308 0.5 cable, single-pair wiring is sufficient in most cases for
digital telephones to operate effectively at up to 1000 feet from the system.
Digital telephones that are equipped with ADMs should have two-pair (or external power) to function
effectively at this distance. This also applies to digital telephones supported by systems that must
operate with battery reserve power (see Chapter 3 – Strata CTX670 Installation for more information).
To accommodate the digital telephone line cord, the cable should be terminated in a modular station
connector block (RJ11) at the station location. The standard single-pair, modular digital telephone cord
that is sent with the telephone is 2.1m (7 ft.) (the maximum allowed is 7.6m or 25 ft.).
Notes
●
Digital telephone cable runs must not have cable splits (single or double), cable bridges (of any
length), or high resistance or faulty cable splices.
3000/3500-series Telephone Option PCBs
Digital telephones can be upgraded with option PCBs to add a number of features. Each of these
upgrades shares a circuit with the telephone that it is connected to and is not considered a station. See
Table 7-2 for more information.
Table 7-2 3000/3500 Telephone Subassembly Upgrades
Subassemb
ly
No. per
Phone
Function
BVSU
1
1. Only one of these options is allowed per telephone: BVSU, BPCI or DADM.
1
Speaker Off-hook Call Announce (OCA): Provides interface for digital telephone to
receive Speaker OCA. Not required for Handset/Headset OCA.
BHEU or
HHEU
1
Headset and external ringer telephone interface: Can be installed with BVSU,
BPCI or DADM. (Installation instructions are in Chapter 8 – Peripheral Installation, see
“Telephone (BHEU) to External Speaker (HESB) Cable Connection” on Page 8-18.
BPCI 1 TAPI PC application and data calling interfaces.
DADM3020
1
1 or 2
Add-on Module (ADM): Provides telephone with 20 (or 40 with two ADMs) additional
feature buttons.
DKT3500-series can only support 1ADM.
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