Loop Limits - Toshiba Strata DK14 Installation And Maintenance Manual

Loop Limits

This section provides the maximum loop lengths for connection of telephones, lines, peripheral
equipment, and power supplies. The following information applies to only the Strata DK40i
system (see Table
found in Chapter 8 – DK40i/DK424 Universal PCB Wiring.
Table 3-10 Digital Telephone/DIU/DDSS Console/ADM/Loop Limits
Mode
DKT or Cordless base
Ringing (Volume Max)
DKT with DVSU (OCA)
DKT with HHEU or Carbon
Handset
DKT with PDIU-DI/
PDIU-DI2/RPCI-DI
PDIU-DS
DKT with HHEU and
RPCI-DI/PDIU-DI/PDIU-DI2
DDSS2060A
DDCB
DKT with DVSU and HHEU
DKT with ADM
1. Battery backup applies to instances when the system is being powered by batteries exclusively.
2. Digital telephones and other digital devices can operate at maximum lengths with two pair wiring or an external power
source.
3. Digital cable runs must not have the following:
Cable splits (single or double)
Cable bridges (of any length)
High resistance or faulty cable splices
Strata DK I&M 5/99
3-10). Diagrams that are applicable to all systems, including the DK40i, can be
DK40i KSU or
1
Battery Backup
DK40i KSU
Battery Backup
DK40i KSU
Battery Backup
DK40i KSU
Battery Backup
DK40i KSU
Battery Backup
DK40i KSU
Battery Backup
DK40i KSU
Battery Backup
DK40i KSU
Battery Backup
DK40i KSU
Battery Backup
DK40i KSU
Battery Backup
DK40i KSU
Battery Backup
Maximum line length (24 AWG)
2
1 Pair
2 Pair
feet meters
feet meters
1000 303
675 204
1000 303
495 150 1000 303
1000 303
330 100
495 150
165 50 675 200
1000 303 1000 303
675 204 1000 303
495 150 1000 303
33 10 330 100
1000 303
500 151
1000 303
500 151
1000 303
1000 303
165 50
675 204
165 50
DK40i Installation
Loop Limits
1 Pair plus
3
external power
1000 feet
303 meters
3-39