Station Loop Requirements - Toshiba Strata DK 16 Installation And Maintenance Manual

INSTALLATION-WIRING DIAGRAMS
SECTION 100-816-208
MARCH 1993
Device Description
4
Electronic telephone
HDSS console
Standard telephones,
voice mail,
auto attendant, etc.
Digital telephone
or
3
DDCB
DDSS console
PDIU-DI
PDIU-DI2
PDIU-DS
ADM
NOTES:
1. Use 24 AWG twisted pairs.
2. PESU circuits 3 and 4 are not used.
3. DDCB can connect only to Circuit 5 of the DK16 Base Unit or Circuit 1 of the PDKU or KCDU.
4. Two-pair, larger wire, or local telephone power supply is required to achieve maximum range,
see Table 8-D.
TABLE 8-B

STATION LOOP REQUIREMENTS

Max Loop Resistance
(Including Device)
40 ohms
20 ohms
300 ohms
40 ohms
40 ohms
40 ohms
40 ohms
40 ohms
Max Distance from
KSU to Device
1000 ft. (303 m)
500 ft. (152 m)
Approx. 3000 ft. (909 m)
with 150 ohm device. See
manufacturer's product
specifications for exact
resistance of device.
1000 ft. (303 m)
1000 ft. (303 m)
1000 ft. (303 m)
1000 ft. (303 m)
1000 ft. (303 m)
8-2
Number of
1
Wire Pairs
2-pair. EKTs which
receive OCA calls
need 3-pair.
1-pair
4
1-pair
4
1-pair
Shares digital
4
telephone wire-pair.
4
1-pair
Shares digital
4
telephone wire-pair.