Network; Ordering Information; Features; Identification - NORTHERN ELECTRIC NE-500 Operation, Installation, And Maintenance Manual

G. Network
2.12 NE-500, NE-554, NE-2500, and NE-2554
type telephone sets are equipped with an
NE-425QE1 network, which contains the necessary
apparatus
for automatic line equalization. In most
telephone sets all connections to the set are made
on the network terminals. The NE-425QE l
network provides five extra bridging terminals with
no electrical connection to the network circuits.
The NE-425B (MD) or NE-425E (MD) networks
are superseded by the NE-425QE 1 network.
Fig. 7 - NE-500 Type Telephone Set Base
Showing Date Stamp and Ringer
Volume Control
ORDERING INFORMATION
2.13 When ordering the sets the desired color
must be specified, using the suffixes given in
Table A (e.g. , to NE-500CR- add 03 to indicate
black).
FEATURES
2.14 The featu res of each telephone set are
shown in Tables B, C, and D.
SECTION 502-5101-201
TABLE A
TELEPHONE SET COLOR CODES
COLOR OOLOR SUFFIX
Black -03
Ivory -50
Green -51
Red -53
Yellow -56
White -58
Pink -59
Light Beige
-60
Light Gray -61
Blue -62
Turquoise -64
3. IDENTIFICATION
GENERAL
3.01 The code number and assembly date are
stamped on the base of each telephone set
(see Fig. 7). Double code numbers (e.g., NE-500
C/D or CR/DR) permit field conversion from
rotary dial to manual operation or vice versa,
without changing the code number stamped on the
base of the set. The letter R indicates that the
telephone set is equipped with a spring type
retractile handset cord. The R - marking has been
discontinued on telephone sets of recent
manufacture.
TELEPHONE SET IDENTIFICATION
3.02 NE-500DR. The NE-500DR telephone set is
the basic rotary dial single-line desk set. The
set components include an NE-G3AR handset, a
QDB 1 type dial, and NE-425QE 1 network, a
3-conductor mounting cord and an NE-C4 type
ringer with adjustable volume control. The
NE-500DR telephone set is shown in Fig. 9.
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