AEV ITB 2O1 Quick Start Manual - Page 7

Browse online or download pdf Quick Start Manual for Telephone System AEV ITB 2O1. AEV ITB 2O1 8 pages. Dual telephone hybrid

Print Page
AEV ITB 2O1 Quick Start Manual
Connections to mixer and lines
The connection of the AEV ITB-201 MKII to 2- wire telephone lines is made by inserting the
telephone cable into the corresponding socket on the ITB-201 MKII using a standard telephone
line connector.
Other telephonic equipment may be connected by inserting a standard connector in the
ppropriate ITB-201 MKII socket. This additional equipment is useful for making calls and
checking the line. Connection is optional.
The mixer output should be connected to the hybrid's TX TEL input, whilst the line return RX
TEL can be connected to an input connected to the CUE of the same mixer.
WARNING: T
AKE GREAT CARE IN CONNECTING LOOP
,
"
"
HUM
ECHOES AND
TUBE
Line Hook
To hook a line it is necessary to lift the ( HOOK switch on the front panel).
Adjusting Levels
Once the line has been hooked, adjust the TX and RX level by injecting a 1 KHz test signal, or
a "standard" signal, and calibrate the levels for a near zero reading on the mixer.
Line Compensation
Once the telephone line is busy, it is possible to carry out an optimization through the Line
Compensation potentiometer (A.L.E.). The fine adjustment is obtained by injecting a TX
signal and receiving a minimum RX signal.
Hanging-Up
Lowering the HOOK switch on the front panel releases the line.
Technical Data
AUDIO LEVELS
Input level (SEND 1/2)
Input impedance
Connector
Output level (RECEIVE 1/2)
Output impedance
Hybrid Circuit
Input/output balanced and floating.
Impedance
RX Level
TX Level
Hybrid null
Frequency response
Distortion
AEV Broadcast srl - via della Tecnica 33, 40050 Argelato Bologna ITALY
AEV ITB201 - dual telephone hibryd
.
EFFECTS
± 12 dBm
>10 KΩ Electronically Balanced
XLR female
0 dBm
100 Ω Electronically Balanced (max load 600 Ω)
600 Ω
- 20 ÷ 0 dBm
- 8 dBm
- 40 dB Full Band (on urban telephon line)
230 ÷ 3400 Hz
0.8 %
www.aev.eu
-
. F
BACKS TO THE MIXER
AILURE TO DO SO CAN GENERATE
7