Bell System Practices 831 Identification, Installation, Connections, And Maintenance page 14

SECTION 503-702-101
Page 14
BSP 503-702-101-i06_19 74-02-14.jpg
Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Feb 04,2012 16:51:51
831-TYPE TELEPHONE SET
NOTES:
I, TIP AND RING ARE COMMON TO ALL PICK-UP BUTTONS THROUGH CONTACT STRIPS lot!ICH PLUG
INTO KEY BEFORE 508-TYPE PLUGS ARE CONNECTED.
2. BRASS STRAP ON TERMINAL BOARD CONNECTS TERMINALS
3. 831-TYPE SETS ONLY. TERMINATE THE (G) LEADS FROM H O LD BUTTON AND CHAINING SWITCH
TO TERMINAL F OF NET\IORK INSTEAD
4,
CURRENT 831C OR 2831C TELEPHONE SET IS EQUIPPED \liTH A G3A6 HANDSET WHICH IS
\IIREO DIRECTLY TO THE TELEPHONE SET. EARLY PRODUCTION 831- OR 2831-TYPE TELEPIIONE
SETS WERE EQUIPPED \liTH A GI2A PLUG-ENDED HANDSET.
5. EARLY PRODUCTION TELEPHONE SETS MAY BE E/11 PIA RINGER WHICH WILL HAVE (S),(S-R),
AND (BL) LEADS \IHICH ARE INSULATED AND STORED.
*
B31AIM (MO), 2831AIM (MO), AND 831BIM (MD). 2831BIM (MO) TELEPHONE SETS ONLY
0
831AIM (MD), AND 2831AIM (MD) EARLY VERSION
�;�� ; 7�� �li� ��
(!)
J
8 B (
L
A
S
I
R
Fig. 9---* 8 31- and 2831-Type Telephone Set, Connections (Sheet 1 of 6).
Ll
lSI
L2
lSI
7,
OF
TERMINAL 8 ON 2831-TYPE SETS.
g!
31CT (MD), B31BIM (MD), 2B31BIM (MD) AND 831AIM (MD),
i
PIB RINGER
(NOT E 51
IRI
b
IBK)
II, AND 15 AND 19, 23 AND 26.
IBRI
c +
IYI
(Y-5)
(5-Y I