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SECTION
518-411·100
TOUCH-TONE telephone sets can be equipped
3.14
with a 74A faceplate and rotary sets with a
150A designation strip.
clear plastic overlay that fits over the buttons of
a TOUCH-TONE dial (Fig. 5). The 150A designation
strip is a stick-on label to be located on a rotary
set housing between the switchhook plungers (Fig.
5) or on the breakover of the housing beneath the
dial. The lettering on the faceplates or designation
Page 12
BSP S18-411-100-i01 _1978-08-12.jpg
572A1 KSU PLUG AND 184C1 B A C KBOARD CONNECTOR ASSIGNMEN TS
184C1 BACKBOARD
PLUG ON
572A1 KSU
BLOCK A
PO
P1
Conn. 2
P2
Conn. 3
P3
Conn. 4
P4
Conn. 5
P5
P6
P7
PS
P9
P10
Pl l
P12
Conn. 1
P13
*If OVERRIDE switch on rear of 57 2A1 KSU is in "10- 11"
position, codes 12 through 19 become 62 through 69.
t If PAG. ACC. switch on rear of 572A1 KSU is operated to ON
position, codes 50 through 53 become 70 through 73.
Note:
Cable from P13 is routed to access point for incoming
CO/PBX lines - not to 184C1 backboard.
The 74A faceplate is a
Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Oct 15, 2012 20:58:29
TABLE E
BLOCK C
BLOCK B
Conn. 1
Conn. 2
Conn. 3
Conn. 4
Conn. 5
Conn. 1
Conn. 2
See Note
strips is associated with the buttons or finger holes
according to the code to be dialed for dial-activated
features.
The desired code must be preceded by
a digit 0. For instance, to activate call forwarding,
the code 02 is dialed. Refer to Table A for system
code assignments.
Stations having the hands-free answer on
3.15
intercom (HFAI) feature must be equipped
LEADS INVOLVED
Not Used
Stations 10
14*
·
Stations 15
19*
·
Stations 20 - 2 4
Stations 2 5- 29
Stations 30 - 3 4
Stations 3 5 - 39
Stations 40 - 4 4
Stations 4 5 - 49
Stations 50 - 54t
Stations 55 - 59
Stations 60 - 61
A and L Leads for
8 CO /PBX Lines
Incoming
T
and R
for CP /PBX Lines
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