Merlin 3070 Service And Maintenance Manual page 15

OFF-PREMISES TELEPHONE
INTERFACE TYPE C (OPTIONAL)
The Off-Premises Telephone Interface, an optional module color-coded gray, may occupy
position 12, 13, or 14 on the Model 1030 control unit or position 25 or 26 on the expansion
unit. This module connects off-premises telephones to the MERLIN communications system,
making the advanced features available to the off-premises user. Unlike the other modules,
this module has no electrical connections to the backplane of the control unit; power is
supplied directly through the top jack connection.
To Voice Terminal Module jack:
Connection via a 4-pair cord is made from
this jack to an open jack on a Voice
Terminal Module. The jack to which this
module is connected determines the
intercom number of the off-premises
telephone. Connecting a 4-pair cord from
this jack to jack 8 on the Voice Terminal
Module in position 9, for example, will
mean the off-premises phone will be
intercom 17.
Off-Premises Line Input jack: Off-
premises outside line connects via 2-pair
wire directly to this input.
Power light (green): Goes on when
power is on.
CIB 3009
13