5000 Series Dialler
Page 3
OUTPUTS
Four plug-in screw terminals on the right-hand side of the Dialler
provide the following outputs
COMMON (-ve)
LISTEN output
AUXILIARY Output (of Dialler)
12 volt Output
Connect any speaker between the LISTEN and COMMON terminals to listen
in to the telephone line when the Dialler is making a call. This simple
procedure can be of tremendous assistance during fault finding.
The Dialler's own AUXILIARY Output is an open-collector Output
capable of sinking 300mA.
Via the 13-way ribbon cable, the Dialler drives the LINE/EXPAND
indicator on the Control Panel. This Dialler output is available for
connection to remote equipment at the LINE LED INPUT/OUTPUT
terminal on the Control Panel (centre of right-hand side).
The 13 Molex pins on the right-hand side of the Dialler are only provided
for test purposes during production.
EARTH
For maximum protection against lightning, it is strongly recommended
that the earth lug of the Dialler should be used by connecting it to the
Earth lug of the Control Panel.
In lightning prone areas, Telecom will provide, on request and free
of charge, lightning arrestors for additional protection of the telephone line.
