Toshiba CTX28 manual 10-2, Station Loop Lengths1, Mode Pair Pair plus

MDF PCB Wiring

Station Loop Lengths

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 Lengths1

	Maximum line length (24 AWG)
Mode	1 Pair2	2 Pair	1 Pair plus
			external power 3
DKT3000 or DKT2000-series 4
DKT with BVSU or DVSU
DKT with
BHEU or HHEU	1000 ft. (303m)
DKT with BPCI
DKT with BPCI + BHEU		1000 ft. (303m)	1000 ft. (303m)
DKT with BVSU + BHEU
or DVSU + HHEU
DKT with DADM3020 or DADM2020	675 ft. (204m)
(1 ADM)2
DKT with DADM3020 or DADM2020	500 ft. (151m)
(2 ADMs)2
DDSS3060 or DDSS2060
BATI, RATI	1000 ft. (303m)	n/a	n/a
DDCB3		1000 ft. (303m)	1000 ft. (303m)
	Approx. 3000 ft.
	(909 m) with 150
	ohm device. 5
Standard telephones, voice mail, AA,	Approx. 9000 ft.
	(2727 m) with 150	n/a	n/a
etc.
	ohm device.5
	Approx. 21000 ft.
	(6363 m) with 150
	ohm device.5
	The IP telephone interface is 10Base-T/100Base-TX and requires
	CAT5/5e/6 twisted pair cabling.
IPT1020-SD	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.

1.When the system is powered by backup battery, range may be less as the backup battery is discharged.

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.

3.Two-pair wiring or optional telephone power supply is required to achieve maximum range in all cases.

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).

5.See manufacturer’s product specifications for exact resistance of device.

10-2 Strata CTX I&M 06/04