SECTION 503-550-1 01
TABLE E
.635A2 OR 635·A5 KEY-PICKUP TO SIGNALING KEY
CONVERSION.
KEY
KEY LEADS ON FRONT TERMINAL BOARD
ARRANGEMENT
R
BK
y
v
s
HPPPPP
3
3
3
3
5
HPPPPS
3
3
3
11
5
HPPPSS
3
3
11
11
5
HPPSSS
3
11
11
11
5
HPPP*P*S
2
3
3
3
8
HPP*P*P*S
3
3
3
3
8
• For common signaling, remove (G) strap
between terminals 2 and 3. Convert 6th key
to nonlocking for signaling key.
Page 12
TABLE F
39A POWER SUPPLY CONNECTIONS
39A POWER
CONN. CABLE AND
TELEPHONE
LEAD
SUPPLY
MTG. CD. CONDUCTOR
SET TERMINAL
DESIGNATION
TERMINAL
PIN
COLOR
J2
AC
AC
41
Y-BL
16
AC
AC
16
BL-Y
14
COM
GRD
25
S-V
17
Caution: Proper supply connections must be
made as shown in Table
F.
Transposition of
COM lead, with AC leads will result in im
proper operation of and possible damage to
the
518
dial.
TABLE G
P-900012 GUARD ASSEMBLY CONNECTIONS
REMOVE
CONNECT
WIRE OR LEAD
FROM
TO
Dial
G-W
c
S*
BK
RR
T*
Line Switch
w
c
S*
Polarity
w
c
Guard
G
RR
674B Trmtr or
P-90D234
BK-0
c
S*
Relay Assy
* Terminal on polarity guard.
BSP 503-550-101-i03_1970-12-12.jpg Scanned by Frank Harre!!, {Cowboy Frank) Castle Rock, Colorado Apr 29,2012 21:38:59
