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OFF-PREMISES
TELEPHONE SET
( NOTE 1 )
KTS POWER
SUPPLY
NOTES:
BSP S18·411·100·i01 _1978-08-69.jpg
R
T
( NOTE 4 )
T
R
6B KTS
A
( NOTE 3 )
BZ
BZ1
A BAT
A GRD
B BAT
B GRD
1 05�
RG
1 . MAXIMUM STATION CONDUCTOR GROUP IS 500 OHMS . TELEPHONE
SET MAX BE EQUIPPED WITH A TOUCH-TONE DIAL PROVIDED 68 KTS
IS SO EQUIPPED. WIRE SET WITH BRIDGED RINGER .
2 . MAKE CONNECTIONS ON LEFT BLOCK IF 420A IS IN P1 OR ON
RIGHT BLOCK IF IN P2.
3. ANY DIGIT MAY BE ASSIGNED TO OFF-PREMISES STATION. TERMINATE
LEADS ON 1 B4C1 BACKBOARD DEPENDING ON CODE ASSIGNED.
4 . 5 1 BA DIODES MUST BE INSTALLED FROM TIP AND RING TO GROUND
AS SHOWN . USE"CONNECTING BLOCK AS SHOWN AS TERMINATING POINT .
5 . IF MORE THAN TWO A2�A KTUS ARE REQUIRED , A 642A PANEL CAN
BE USED .
Fig. 36-Connections for Off-Premises Extension
Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Oct 15, 2012 21:19:32
1 1 0A APP
MOUNTING
( NOTES 2
ANO 5 )
4
1 3
3
1 2
1
1 4
2
9
1 0
1
5
5
6
45
1 B
46
3
47
1 7
48
15
39
10
B
B
ISS 1, SECTION S 1 8-4 1 1 - 1 00
420A KTU
ADD
STRAPS
Page 69
69 Pages
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