Table 9-4 Station Cable Continuity Check For Electronic Telephone Cables Using Ohmmeter - Toshiba Strata DK40 Installation & Maintenance Manual

Station Cable Continuity Check
.
Table 9-4 Station Cable Continuity Check for Electronic Telephone Cables using Ohmmeter
From
Pair Wire
1
1
1
1
1
2
3
3
3
3
3
3
3
3
1
The green-red, black-yellow and white-blue measurements should be within 10% of each other.
2
This is the maximum allowable reading for all digital and electronic telephone cable runs except if connecting an
HDSS console to circuits 7 and 8 of a PEKU, then the maximum cable restriction is 20 ohms, not 40 ohms.
Strata DK40 I&M Spring 1999
Refer to the Strata DK40 Programming Manual or DK Library CD-Rom for more details.
Colour
1
A Green
B Red
A Green
B Red
A Green
A Black
A White
A White
B Blue
A White
B Blue
A White
B Blue
A White
To
Pair Wire
2 A
2 A
2 B
2 B
1 B
2 B
3 B
1 B
1 B
1 A
1 A
2 A
2 A
2 B
Fault Finding
Colour Voltage
Black open
Black open
Yellow open
Yellow open
Red 40 ohms
Yellow 40 ohms
Blue 40 ohms
Red open
Red open
Green open
Green open
Black open
Black open
Yellow open
2
2
2
9-7