Dialing Using The Hp 4934A And A Bott-In - HP 4934A Operating And Calibration Manual

Dialing using the HP 4934A and a Butt-in
1
Connect the butt-in to the T and R DIAL binding posts.
2
Connect the test circuit to the TRMT port.
3
Select DIAL to connect the butt-in through to the TRMT port. The DIAL
indicator will light.
4
Dial up the line you want using the butt-in.
5
When the far end goes off-hook you can use the butt-in for voice communication.
6
To continue to hold the line and connect the HP 4934A transmitter to it, select
TRMT HOLD then DIAL. You can now transmit test signals along the line. To
re-establish the speech path, press
DIAL.
To drop the line, press TRMT
HOLD.
7
Alternatively, to continue to hold the line and connect the HP 4934A receiver to
it, select RCV HOLD then REVERSE. You can now receive test signals from the
line. To re-establish the speech path, press
REVERSE
and
DIAL.
To drop the
line, press RCV
HOLD.
Making Measurements 2-3