Loop Limits - Toshiba Strata DK40 Installation & Maintenance Manual

Loop Limits

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 to the
Strata DK40 system
Slot PCB
Table 2-15 Digital Telephone/DDSS Console/ADM/Loop Limits
Mode
DKT
DKT with DVSU (OCA)
DKT with HHEU or
Carbon Handset
DKT with RPCIU
DKT with HHEU and
PCIU
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
4
Use CW1308 0.5mm twisted pair cable
Strata DK40 I&M Manual Spring 1999
Refer to the Strata DK40 Programming Manual or DK Library CD-Rom for more details.
(see Table 2-15). Diagrams can be found in
Wiring.
DK40 KSU or
Battery Backup
DK40 KSU
Battery Backup
DK40 KSU
Battery Backup
DK40 KSU
Battery Backup
DK40 KSU
Battery Backup
DK40 KSU
Battery Backup
DK40 KSU
Battery Backup
DK40 KSU
Battery Backup
DK40 KSU
Battery Backup
DK40 KSU
Battery Backup
Maximum line length (24 AWG)
1
1 Pair
303 m
204 m
303 m
150 m
303 m
303 m
100 m
150 m
50 m 200 m
150 m 303 m
10 m 100 m
303 m
151 m
303 m
151 m
303 m
303 m
50 m
204 m
50 m
DK40 Installation
Chapter 4 – DK40 Universal
1 Pair plus
2
2 Pair
external power
303 m
3
2-53