Specifications

Macrotel DIGITAL
Pag. 5
2 EQUIPMENT DESCRIPTION
2.1 FRONT PANEL
Send potentiometer
it adjusts the level of audio signal sent to phone caller. At its midpoint (6 o’clock
position), the pot is set for nominal send level (0dBm).
Aux-in potentiometer
It adjusts the level of the auxiliary send audio coming from the remote connector
input and going onto the telephone line to the caller. At its midpoint (6 o’clock
position), the pot is set for nominal level (0dBm).
Receive potentiometer
it adjusts the phone subscriber audio level which is provided to the user ’s
equipment
Rec-Out potentiometer
it adjusts the level of the audio at the Rec-Out connector. At its midpoint (6 o’clock
position), the pot is set for nominal level (0dBm).
DIP Switches
these DIP switches configure the hybrid’s system. Individual switch functions are
defined in Calibration Chapter
Send LED
it indicates the relative level of the send audio into the digital hybrid. Green
indicates nominal level, amber indicates caution, red indicates clipping.
Receive LED
it indicates the relative level of the caller audio from the telephone line. Green
represents nominal level, amber indicates caution, red indicates clipping.
Hook button
it allows Line hooking i.e. it connects the hybrid to the telephone line
Hook LED
it blinks when a call (ring) is coming in and lights firmly while line is hooked.
Please note: led switchs on only if phone line is connected
Off button
it disconnects the hybrid from the telephone line and mutes all audio going to and
from the telephone line
Off LED
it indicates the hybrid is not connected to an active phone line. The LED
illuminates red when the hybrid is powered
Volume Up / Down
these buttons control the audio level on the headphone monitor output. Pressing
once changes the level by 1dB. Pressing and holding a button sweeps the level up
or down