AT&T Plant Series - AD1 Base Wiring Diagram; AD1 Wiring Diagram Notes

-a
a
ID
CD
~
("--'
r
~ (
'--
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INSIDE
WIRE
CONN
BLK
D5AL
OR
~DI TELEPHONE BA SE
H4DB,H5AA
1220A HAND TELEPHONE SET
GRD
(NOTE
I)
r-~~~~~~~~~~~~~ ~ ~~~~-- OR H5AD
~
:·:::::::
(G) [G)
MESSAGE
WAITING
LAMP
(N OTE 4)
[ Y]
s > I •
:: , 111 , ~
----"""'"--~ 1@ ;; ; ::;: : : ' ; : : : ,I,
b (Y)
t(B: ) ! (S~ (R)
NO TE S: . 0 (
3
.
( R) [R]
I. STAT I ON GRClJND MAY BE OMITTED If NOT REQUIRED
F OR SERVICE; NOT REQUIRED FOR PROTECTION Of
D IAL LIGHT TRANSFORMER.
2. LI NE S WIT CH OFT-HOOK SEQUENCE:
be CL OSES
de CLOSES
ob OPENS
jk CLOSES
3. DISCO NN EC T ( BL) LEAD FROM B TErtMINAL WHEN H5AA
CORD IS U SEO AND TI P I DE NT I FY I NG GROUND I S NOT
PROVIDED, INSULATE OR STORE ON UNUSED
TERMINAL.
4. LAMP AND RE S ISTOR ARE PART Of H5AD CORD O NLY,
( ME SSAGE WAITIN G FEATURE) . [v] LEAD IS NOT
TER MINATED IN SET PLUG . S EE TABLE H FOR
CO NNECTI ONS AT ADI TELEPHONE BASE.
5. S ET WIRED FOR INDIVIDUAL OR BRIDGE D
SE RVI CE , FOR ALL O TH ER PARTY SERVI CE REFER
TO RINGEk CON N ECT I ON TABLE.
6. CHA NGE TO 53A LAMP If CO MBINED LENGTH Of
HAND TELEPHONE SET CO RD AND (AD I BASE)
MOUNT ING CORD EXCEEDS 15 FEE T.
( )
CO L OR CODE H4DB CO RD
[ ] COLOR CODE H5AA OR H5A D CORD .
* INS ULATE AND STO RED .
Fig . 15-1220A Hand Telephone Set and ADl Telephone Base, Wiring Diagram
7
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