Page 6 Hybrid Coupler Installation and Operations Manual
Technical or Setup Assistance
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The Hybrid Coupler is easy to control. By positioning the toggle switch on the
unit’s front panel (See Figure 11, left.), the Hybrid Coupler can be either OFF
[2], SEIZEd [1] or TAPped [3] to the telephone line.
If this switch is in the OFF position [2], the Hybrid Coupler is not connected to
the phone circuit.
If this switch is in the SEIZE position [1], the Hybrid Coupler is connected. In
other words, any telephone line plugged to the rear panel LINE jack will be
connected, and the SEND and RECEIVE jacks will be active.
If this switch is in the TAP position [3], the Hybrid Coupler is only monitoring
the phone circuit. This means that if the phone line connected to the unit is in
use (either by having a telephone instrument connected to the SET rear panel
modular jack off-hook, or if supervisory current is being drawn elsewhere from
that phone loop), the Hybrid Coupler’s SEND and RECEIVE jacks will become
active.
Recording Daily Phone Calls
A typical application for the Hybrid Coupler is monitoring and/or recording
phone calls in progress with the TAP feature. To do this, follow the steps
below:
Step 1
Verify proper installation.
Null Adjustment
Continued
Operation
Figure 11. Hybrid Coupler front panel
Figure 10. Hybrid Coupler PC board
