Telephone Systems General Description

Appendix – Specifications
Station Loop Lengths
Strata CTX General Description 11/02 77
Station Loop Lengths
In a single site installation, the Base and optional Expansion Cabinets must be placed within the
allowed maximum distance of each other as designated by Table 26.
Table 26 Station Loop Lengths
1
1. When the system is powered by backup battery, range may be less as the backup battery is
discharged.
Mode
Maximum line length (24 AWG)
1 Pair 2 Pair
1 Pair plus
external power
2
2. Two-pair wiring or optional telephone power supply is required to achieve maximum range in all cases.
DKT3000 or DKT2000-
series
3
3. BDKS does not provide the power wire pair, an external power supply is required to achieve maximum
range.
1000 ft. (303m)
1000 ft. (303m) 1000 ft. (303m)
DKT with BVSU or
DVSU
DKT with
BHEU or HHEU
DKT with BPCI
DKT with BPCI + BHEU
DKT with BVSU + BHEU
or DVSU + HHEU
DKT with DADM3020 or
DADM2020 (1 ADM)
675 ft. (204m)
DKT with DADM3020 or
DADM2020 (2 ADMs)
500 ft. (151m)
DDSS3060 or
DDSS2060
1000 ft. (303m)
BATI, RATI n/a n/a
DDCB3 1000 ft. (303m) 1000 ft. (303m)
Standard telephones,
voice mail, AA, etc.
Approx. 3000 ft.
(909 m) with 150
ohm device.
4
4. See manufacturer’s product specifications for exact resistance of device.
n/a n/a
Approx. 9000 ft.
(2727 m) with 150
ohm device.
4
Approx. 21000 ft.
(6363 m) with 150
ohm device.
4