Ordering Guide - AT&T BELL SYSTEM Touch-A-Matic 870A1 Identification, Installation, Connections, Operation, And Maintenance

SECTION 501-164-201
previously stored numbers. No recording possi-
ble except for LAST NUMBER DIALED mem-
ory which will store digits dialed manually from
adjunct dial.
(2) Record Disable and Dial Intermix: Same as
record disable feature plus.
(a) Allows digits dialed with manual dial
and from memory to be intermixed with-
out having to depress the RECORD OFF but-
ton.
(b) Disables the LAST NUMBER DIALED
feature.
2.04 All options are implemented by the following.
Wiring changes in the applicable dial.
Wiring changes in the telephone set or con-
sole to which the dial is an adjunct.
Installation of appropriate additional items.
C.
Ordering Guide
2.05
Either of these dials maybe ordered complete
and ready to install as:
Dial, 870A1-50 (rotary service)
Dial, 2870A1-50 (TOUCH-TONE service).
2.06 The following must be ordered separately:
Unit, Power, 95B1 (required for operation
the automatic dialing feature)
of
2.07
(a)
(b)
(c)
(d)
Note: One power unit is required for each
adjunct dial.
Decorative Faceplate, see paragraph 2.09.
The 870A1-50 dial may be ordered in its com-
ponent parts as follows:
Housing, Lower, 870ADJ1-50
Housing, Upper, 870A1U-50
Faceplate, 870B1-122 (Matte Aluminum)
841382575 Dial Base (includes the following):
2.08
(a)
(b)
(c)
(d)
Dial, 8EA-119
841382880 Line Sensing Printed Wiring
Board Assembly
Cord, Mounting, D1OU-87
Cord, Power, M2SL-87
Battery, KS-20390L4
Memory, 870B
841382617 Power Supply Printed Wiring
Board (PSB) Assembly
840393672 Directory Sheet Set
Booklet, Instruction, Subscriber, SIB-2481B
The 2870 A1-50 dial may also be ordered in its
component parts as follows:
Housing, Lower, 870ADJ1-50
Housing, Upper, 870A1U-50
Faceplate, 2870B1-122 (Matte Aluminum)
841381965 Dial Base (includes the following):
Dial, 35AG3A
841382880 Line Sensing Printed Wiring
Board Assembly
Cord, Mounting, D1OU-87
Cord, Power, M2SL-87
Battery, KS-20390L4
Memory, 2870B
841382385 Power Supply Printed Wiring
Board (PSB) Assembly
840393672 Directory Sheet Set
Booklet, Instruction, Subscriber, SIB-2481B.
2.o9 Optional apparatus (order as required) is as
follows:
Housing, Lower, 870ADJ1-(see Note 1)
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