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MDF PCB Wiring
Station Loop Lengths
10-2 Strata CTX I&M 06/04
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 10-1
Table 10-1 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
2. One-pair wiring must be used with BWDKU and BDKS (see Figure 10-3 on page 10-6). The BWDKU and BDKS do
not support two pair wiring.
2 Pair
1 Pair plus
external power
3
3. Two-pair wiring or optional telephone power supply is required to achieve maximum range in all cases.
DKT3000 or DKT2000-series
4
4. BDKS and BWDKU do not provide the power wire pair; an external power supply is required to achieve maximum
range (see Figure 10-6 on page 10-9).
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)
2
675 ft. (204m)
DKT with DADM3020 or DADM2020
(2 ADMs)
2
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.
5
5. See manufacturer’s product specifications for exact resistance of device.
n/a n/a
Approx. 9000 ft.
(2727 m) with 150
ohm device.
5
Approx. 21000 ft.
(6363 m) with 150
ohm device.
5
IPT1020-SD
The IP telephone interface is 10Base-T/100Base-TX and requires
CAT5/5e/6 twisted pair cabling.
The maximum distance between the IP telephone jack and the
ethernet device it connects to is 100 meters (328 ft.). This includes
the 3 meter (9.84 ft.) straight-through CAT5 cable (black) supplied
with the IP telephone. Ethernet devices include
BIPU-M2A, BIPU-M1A servers, routers, etc.