
ISS 4, SECTION 502-612-409
NOTES FOR FIGURES
2
AND
3:
I. THE
635A05C
KE Y IS SUPPLIED WITH AN ADAPTER IN THE CUTOFF KEY P O SITION. THE SLATE
MOUNTING CORD PLUG CONNECTS TO THE ADAPTER. BALANCE Of PLUGS CONNECT
DIRECTLY TO KEY.
2. IF A 635AD5C KEY IS ADDED IN THE FIELD, TERMINATE THE (BL-Y) AND (Y-BL)
ADAPTER LEADS AS INDICATED IN NOTE 6 AND REMOVE (R) SLATE PLUG
LEAD FROM TERMINAL 22. INSULATE AND STORE.
3. IF THE HOLD POSITION LAMP (6TH) 635A5C OR 635AD5C KEY IN THE fiRST MODULE IS
USED FOR A VISUAL SIGNAL, REMOVE (Y-G) LAMP GROUND LEAD FROM STORED LOCATION
IN FIRST MODULE AND CONNECT TO TERMINAL 22. CONNECT INSULATED AND STORED (10-Y)
LAMP LEAD AND (R-G) MTG CORD LEAD USING SPARE TERMINAL OR 0· 161488 CONNECTOR.
4. IN SETS EQUIPPED WITH A 658A KEY, THE (G) CONTACT STRIP LEAD IS TERMINATED
ON TERMINAL 10 AND (R) ON II. IF A 658A KEY IS ADDED IN THE FIELD, LEADS MUST
BE MOVED FROM PRECEDING MODULE CHAINING CIRCUIT TO TERMINALS
10
AND II.
PROVISIONS ARE MADE FOR MECHANICALLY STORING THE LIGHT BEIGE PLUIO ON THE
658A KEY. NO ELECTRICAL CONNECTION IS MADE.
5. \/HEN THE 658A KEY IS REQUIRED AS A DUAL PURPOSE KEY, REMOVE STRAP BETWEEN
TERMINALS 10 AND II. USE MIW CORD OR EQUIVALENT TO CONNECT TERMINAL II TO
A 0 I
55
I MILAR GROUND OR NONGROUNOED CIRCUIT.
6. CUTOFF OF THE INTERNAL RINGER CAN BE PROV I OED USING THE 635AD5C KEY IN
FIRST MODULE. TRANSFER 81 (R-BL) LEAD FROM TERMINAL 12 AND (BL-Y) ADAPTER
LEAD TO SPARE TERMINAL OR D-1 61488 CONNECTOR. REMOVE (W-G) LEAD (SLATE
PLUG) FROM TERMINAL 57 AND CONNECT TO 12.
7. \/HEN 635A05C KEY IS USED IN fiRST MODULE TO PROVIDE CUTOFF, SWITCHING, OR
TRANSFER FEATURES, MOVE (11-BR) SLATE PLUG LEAD FROM TERM. 60 TO TERMINAL II.
THESE SERVICE FEATURES ARE PROVIDED BY AN AUXILIARY RELAY (229B KTU OR
EQUIVALENT) SEPARATELY MOUNTED AND CONTROLLED BY THE CUTOFF KEY CONTACTS
THROUGH LG5, C, S, 51 LEAD.
8. CONTROL LEADS CA TO CJ ARE CONNECTED TO TERMINALS 57 TO 65. THESE TERMINALS
APPEAR ON MORE THAN ONE OF THE MODULE SHEETS OF FIG. 2 AND 3 BUT ARE THE
SAME TERMINAL.
*
INSULATED AND STORED
DEAD DRESSED
Notes for Fig. 2 and 3
SSP 502-612-409-i04_1975-10-07.jpg
Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Feb
04, 2012 16:13:49
Page 7