Installation; Operation; Maintenance - Bell System Practices Plant Series Identification, Installation, Operation, Connections, And Maintenance

3.

INSTALLATION

(a) Planning
Safety for yourself, customer, and maintenance
•
personnel
Location-desk, console, table, etc.
•
Space requirements
•
Distance between associated equipment and
•
apparatus
General appearance of installation
•
(b)
Installing
Install sets in accordance with standard
•
installation procedures.
Connect the plug-ended mounting cord to
•
the appropriate connector cable.
4.

OPERATION

Refer to appropriate section in Division 480
•
(covering Switching System No. 307) for
detailed description and operation of this
telephone set.
5. CONNECTION INDEX
No changes in wiring other than those
specified in
made.
Table A-Module and Key Arrangement
this practice shall be
ISS 1, SECTION 529-226-113
Table B-Modification To Reduce Dialing Tones
In 4-Wire Configuration
Table C-Modification To Permit Multipling
Stations
Table D-Ringer Connections
Table E-Plug Termination of D120F Cord
Fig. 4-2626Al Telephone Set, Connections
Fig. 5-Mounting Cord
2626Al Telephone Set
Refer SD-69505-01 for telephone set application
to
with Switching System No. 307
6.

MAINTENANCE

(a) Replaceable Apparatus (see Part
Guide)
Buzzer is mounted with nylon screws
Note:
and insulated washers. When replacing buzzer
be sure buzzer is insulated from mounting
bracket.
(b) Repairable Apparatus
Refer to appropriate section for detailed
•
maintenance
(c) Connections
Verify as being correct and tight
•
(d)
Cleaning
Clean components with damp KS-2423 cloth
•
Do not use scouring cleaners as this may
•
damage finish
and Key Units For
2,
Ordering
Page
3