Toshiba Strata CTX Series, Installation And Maintenance Manual

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CTX28 Installation
Station Loop Lengths
Strata CTX28 I&M 3/05
1-29
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 1-16
DKT3000-series telephone loop limits are in Table 1-17 .
Table 1-16 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)
DKT3000 or DKT2000-series 1000 ft. (303m)
Standard telephones, voice mail, standard single line
telephone device, etc.
Approximately 3000 ft. (909 m) with 150 ohm device.
2
2. See manufacturer’s product specifications for exact resistance of device.
Table 1-17 Loop Limits for DKT3000-series Telephones
Telephone/Device
Power Supply Unit (PSU)
or Battery Backup
Maximum line length
(24 AWG)
DKT3000-series or DKT2000-series models,
DKT with BVSU or DVSU or
DKT with BHEU or HHEU PSU 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)
DDCB3A
PSU 1000 ft. (303m)
Battery Backup 165 ft. (50m)