Toshiba Strara CTX Series Installation And Maintenance Manual page 179

Table 6-2 Loop Limits for DKT3000-series Telephones
Telephone/Device
DKT3000/DKT3500-series or
DKT2000-series models
DKT with BVSU or DVSU or
DKT with BHEU or HHEU
DKT with BPCI
DKT with BPCI + BHEU
DKT with DADM3020 or
DADM2020 (1 ADM)
DKT with DADM3020 or
DADM2020 (2 ADMs)
DDSS3060 or DDSS2060
BATI, RATI
DDCB3A
1. Two-pair wiring or optional telephone power supply is required to achieve maximum range in all cases.
2. BDKS does not provide the power wire pair, an external power supply is required to achieve maximum range (see
Strata CTX I&M September 2002
Power Supply Unit
(PSU) or Battery
Backup
PSU
2
,
Battery Backup
PSU
Battery Backup
PSU
Battery Backup
PSU
Battery Backup
PSU
Battery Backup
PSU
Battery Backup
PSU
Battery Backup
PSU
Battery Backup
Maximum line length (CW1308 0.5)
1 Pair
1000 ft. (303m)
675 ft. (204m)
1000 ft. (303m)
500 ft. (151m)
1000 ft. (303m)
1000 ft. (303m)
500 ft. (151m)
675 ft. (204m)
165 ft. (50m)
500 ft. (151m)
33 ft. (10m) 330 ft. (100m)
1000 ft. (303m) 1000 ft. (303m)
675 ft. (204m) 1000 ft. (303m)
1000 ft. (303m) n/a
1000 ft. (303m) n/a
1000 ft. (303m) 1000 ft. (303m)
165 ft. (50m) 675 ft. (204m)
MDF PCB Wiring
1 Pair plus
2 Pair
external power
1000 ft. (303m)
n/a
n/a
1000 ft. (303m)
1000 ft. (303m)
Figure
1
6-6).
6-3