Toshiba Strata CTX670 - Page 241

MDF PCB Wiring
MDF PCB Wiring
Station Loop Lengths
Strata CTX I&M 10/02 PRELIMINARY & CONFIDENTIAL 7-3
Table 7-2 Loop Limits for DKT3000-series Telephones
Telephone/Device
Power Supply Unit
(PSU) or Battery
Backup
Maximum line length (24 AWG)
1 Pair 2 Pair
1 Pair plus
external power
1
1. Two-pair wiring or optional telephone power supply is required to achieve maximum range in all cases.
DKT3000-series or DKT2000-
series models
2
,
DKT with BVSU or DVSU or
DKT with BHEU or HHEU
2. BDKS does not provide the power wire pair, an external power supply is required to achieve maximum range (see Figure 7-4).
PSU 1000 ft. (303m)
1000 ft. (303m)
1000 ft. (303m)
Battery Backup 675 ft. (204m)
DKT with BPCI
PSU 1000 ft. (303m)
Battery Backup 500 ft. (151m)
DKT with BPCI + BHEU
PSU 1000 ft. (303m)
Battery Backup 500 ft. (151m)
DKT with DADM3020 or
DADM2020 (1 ADM)
PSU 675 ft. (204m)
Battery Backup 165 ft. (50m)
DKT with DADM3020 or
DADM2020 (2 ADMs)
PSU 500 ft. (151m)
Battery Backup 33 ft. (10m) 330 ft. (100m)
DDSS3060 or DDSS2060
PSU 1000 ft. (303m) 1000 ft. (303m)
Battery Backup 675 ft. (204m) 1000 ft. (303m)
BATI, RATI
PSU 1000 ft. (303m) n/a n/a
Battery Backup 1000 ft. (303m) n/a n/a
DDCB3A
PSU 1000 ft. (303m) 1000 ft. (303m) 1000 ft. (303m)
Battery Backup 165 ft. (50m) 675 ft. (204m) 1000 ft. (303m)