User guide

COMMON AUDIBLE AND AUXILIARY
STATION INTERFACE (STATION 17
AUDIBLE)
Two sets of relay closure dry-contact points are
available. These are located at the J-1 and J-2
connector blocks for models N0616, N0820, and
N1024 and at the barrier-type terminal strip on the
model N0308 common equipment cabinet. These
closures track the ringing pattern. They are closed
during the ringing period and open during the silent
period. Figure 3-6 shows connection details for this
feature.
•
Station 17 Audible: (J-1 connections 49 and 50)
provides a dry-contact closure whenever system
station 17 rings.
•
Common Audible: (J-2 connections 49 and 50)
provides a dry-contact closure whenever any of the
TELCO/PBX lines, connected to the common
equipment, ring.
CAUTION
Do not exceed a 1 amp at 24 volts AC or DC
(.5 amp at 48 volts) load on these control
terminals. If the load requirements exceed
this limit, connect the load through an external
slave relay. DO NOT CONNECT THESE
CONTROL TERMINALS DIRECTLY TO THE
117VAC LINE.
System Description IMI 66-064
3-13