ISS 1, SECTION
S
1 8-4 1 1 - 1 00
OFF-PREMISES
TELEPHONE SET
(NOTE 1 )
6B KTS
( NOTE 3 )
A BAT
A GRD
B BAT
B GRD
105�
KTS POWER
SUPPLY RG
NOTES:
T
R
A
BZ
BZ1
R
T
( NOTE 4 )
1 1 0A APP
MOUNTING
(NOTES 2
ANO 5 )
4
3
1
2
10
5
6
45
46
47
48
39
B
13
12
14
9
1
5
1B
3
17
15
10
B
1 . MAXIMUM STATION CONDUCTOR GROUP IS 500 OHMS. TELEPHONE
420A KTU
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 1B4C1 BACKBOARD DEPENDING ON CODE ASSIGNED.
4 . 51BA 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
BSP S18·411·100·i01_1978-08-69.jpg Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Oct 15, 2012 21:19:32
ADD
STRAPS
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69 Pages