2-1. DESCRIPTION AND USE OF OPERATOR'S CONTROLS AND INDICATORS. (CONT)
DESCRIPTION OF CONTROLS
Controls signaling and buzzer unit.
(3) RING Switch
Connects power to ringing generator and applies
20 Hz signal to 2W or 4W-S binding posts.
Connects buzzer circuit and receiver disabling
circuit (REC jack) across either 2W or 4W-R
Provides visual indication (2W operation only)
that the equipment is ready to transmit
(5) Fuse 1.5 amp
Contains a 1.5 amp fuse which protects the
equipment from excessive voltages.
(6) Power cord strain
Power cord strain relief prevents damage and
separation of power cord connection.
The REC jack receives red plug from
(7) REC jack
receiver section of the teletypewriter.
(8) SEND jack
The SEND jack receives black plug from
(9) SEND jack
The SEND jack receives gray plug from
(10) Binding posts 1 through 6
Binding posts 1 thru 6 provide for wire
connections. The posts have a spring action
and wires can be connected by pushing forward
on the post. When the post is released the
spring action will hold the wire securely.
The number of wires and posts used determine
the type of circuit and mode of communication.