General - NORTHERN ELECTRIC NE-500 Operation, Installation, And Maintenance Manual

SECTION 502-5101-201
telephone sets. The components of the NE-1500
(MD)
type telephone sets are compatible with the
NE-2500 type telephone sets except for the dial
and housing.
1.03
An
NE-426A electron tube (Fig. 3) or a
P0895087 ringer isolator kit (Fig. 4) may
be
installed within the telephone set to correct
inductive noise conditions. Refer to the section on
the P0895087 ringer isolator kit for connection
information.
2. DESCRJYI'ION
GENERAL
2.01 The NE-500 and NE-554
type
telephone
sets are equipped with a rotary dial. The
dial may be replaced in the field, with an NE-95B
apparatus blank, if
the telephone set
iS.
converted
for manual operation. (Fig. 5 and 6.)
Fig. 1 - NE-25000 Telephone Set
790