Bell System Plant Series Installation Manual

t
t
J
BELl SYSTEM PRACTICES
Plant S6rles
CONTENTS
1. GENERAL
2.
APPARATUS
3.
PREPARATION FOR INSTALLATION
Locating PBX
locating Cross-Connecting Terminal
Cabling and Wiring
4.
INSTALLATION .
Unpacking and Placing PBX
Placing Cross-Connecting Terminal
Cabling and Wiring
Lettering and Numbering
Terminating Cable in PBX
Attendant's Telephone Equipment
Designation Strip
Miscellaneous Equipment
(A) Off-Premises Station Lines
(B) Tie Trunks
(C) Hand Generator and Audible
Auxiliary Signal
Power Supply
5.
TESTS AND INSPECTIONS
1. GENERAL
Sc€T.tQN 536-070·-210
Issue 3, January, 1960
AT&TCo Standard
INSTALLATION
507 A AND 5078 PBX
PAGE
(a) To incluge
ipJo1~mation
on the n@w switch-
1
h~ards ~ith
·<lie-cast aluminum chassis.
1
1
2
2
2
2
2
6
6
6
(b) To show the termination of even count
cable in
cross~connecting
terminals.
(c) To add tables showing the connections for
terminating cable in the 507 A and 507B
PBX.
(d) To include additional information on sup-
plying power to the PBX.
(e) To include inf(}rmation for fusing battery
feeders when the CO or building battery
fuses are inaccessible.
Since this reissue covers a general revision arrows
ordinarily used to indicate changes have been
omitted.
2. APPARATUS
7
2.01
Tools normally used for PBX installations.
9
9
9
9
10
10
11
2.02
Materials required for protecting the
customer's premises or the equipment
during installation.
3. PREPARATION FOR INSTALLATION
Locating PBX
3.01
In general, both PBX are designed to be
mounted on top of a piece of office furni-
ture, such as a desk or table, without
being
fastened down.
1.01
This section covers a method for installing
the 507 A and 507B PBX.
3.02
Select a location for the PBX acceptable
to the customer and" with the following
reservations:
1.02
This section is reissued for the following
reasons:
(a) Avoid locations where moisture, excessive
dust, corrosive fumes, etc., are present.
©American Telephone and Telegraph Company, 1960
Printed in U.S. A.
Page 1