Merlin 3070 Service And Maintenance Manual page 201

The ring generator (Figure 1) converts the 117-volt 60-Hz in-
put power to 117-volt 30-Hz ringing current. The ringing cur-
rent output is connected to the RING GEN. jack on the Power
Module in the Models 1030 and 3070 control units. This ring-
ing current is used for ringing basic telephones connected to
the Basic Telephone Module.
An ac power cord is included in the package with the ring
generator. The ring generator unit is identified on the label as
a 125H Frequency Generator.
RING SIGNAL
OUTPUT (SECONDARY)
CORD STORED INSIDE
WHEN NOT IN USED
Figure 1
INSTALLATION
The ring generator unit has protective feet on the base for
mounting on a horizontal surface. Keyhole slots in the base
permit vertical mounting using a wall mounting bracket. For
Model 1030 and 3070 applications, the unit is mounted on
hangers on the back cover of the control unit. (See Figure 2.)
TO RING GEN.
JACK ON POWER
MODULE
Figure 2
(Z129A) RING GENERATOR UNIT (61351)
RING SIGNAL
OUTPUT
(PRIMARY)
RING SIGNAL
OUTPUT CORD
117 VOLT
OUTLET
RING
GENERATOR
Align keyhole slots and hang ring generator unit on
1.
hangers on back cover of control unit.
Run the ring signal output cord through and out the
2.
opening under the top front rail of control unit. (See
Figure 2.)
3. Connect ring signal output cord into RING GEN. jack on
the Power Module. (See Figure 3.)
Note: When the expansion unit also contains a Basic
Telephone Module in slots 21, 22, 23, or 24,
connect the secondary output to the RING
GEN. jack on the Power Module in slot 16.
Never connect the two outputs from the ring
generator to both power modules in the expan-
sion unit.
4. Connect the power cord to the ac input connector on
the ring generator unit.
5. Connect the power cord to a 117-Vac outlet.
Operational Check
To test the ring generator, a Basic Telephone Module must be
installed in the control unit and at least one basic telephone
connected into the module.
Dial the intercom number of the basic telephone and confirm
that ringing occurs.
RING SIGNAL
OUTPUT CORD
Figure 3
Equipment manufactured by AT&T Technologies in the U.S.A.
CIB 3019
Power Module