Vega Telex HB-3PLUS Technical Manual - page 6
4
HB-3plus Headset Adaptor Box
1 2 3 4 5 6
1 ) D es k M ic IN
2) G ro u n d
3 ) H ea d se t I IN 4) G ro u n d
5 ) H ea d se t II IN 6) G ro u n d
2.3.4 AUX IN Connections
The AUX IN connections detect a contact closure to ground and send the information to the C-
Soft application. Each input is diode protected from voltages above +5VDC.
The two AUX inputs are located at pins 1 and 2 of the middle 6-pin screw terminal block.
Please refer to the C-Soft manual for use of this feature. Refer to Figure 4 Recorder and AUX IN
Connections. NOTE: The AUX IN Inputs are Enabled In The PC Mode ONLY
2.3.5 Recorder Connections
The HB-3PLUS provides two balanced recorder outputs. The impedance of each balanced output
is 600 ohms.
Common Recorder Output
The common recorder output sums and amplifies all sources
of audio passing through the HB-3PLUS to a balanced output
for a single position recorder capability. Internal jumper JMP9
sets the routing of the UNSELECT audio to the common
recorder output.
A – UNSELECT audio
B – No UNSELECT audio
The Common Recorder Output is provided at pins 3 and 4 of
the middle 6-pin screw terminal block marked RECORDER
OUT.
Figure 4 Recorder and AUX IN Connections
UNSELECT Audio Recorder Output
The UNSELECT Audio Recorder Output provides UNSELECT audio to a separate balanced
output. The UNSELECT Recorder Output is provided at pins 5 and 6 of the middle 6-pin screw
terminal block marked UNSEL REC Out. Refer to Figure 4.
2.3.6 Footswitch Connections
The HB-3PLUS provides separate PTT footswitch inputs for
the desk mic, Headset I and Headset II. The PTT function is
activated by a contact closure to ground. Each input is diode
protected from voltages above +5VDC. Refer to Figure 5.
Figure 5 Footswitch Connections
2.3.7 Console Connections
The HB-3PLUS connects directly to the handset port of a Vega dispatch console (C-5000, C-
1610, C-1616, C-2000, C-2002, IP1616 and C-6200) from the Console RJ-H CONSOLE
connector when the CONSOLE MODE is set by JMP8. A 4-
pin modular cable is provided for connection to the console.
The HB-3PLUS provides the audio paths for radio Tx from the
headset or desk mic and SELECT audio. System PTT and
SELECT audio routing are also controlled by the HB-3PLUS.
SELECT audio is routed to the console speaker when the
Headset Switch in the OFF position or when the NENA system
is off-hook. UNSELECT audio is NOT available to the HB-
3PLUS from the console. NOTE: The Handset Port On The
Console Must Be ENABLED. Refer To The Console
Technical Manual For Instruction
Figure 6 HB-3 To Console Connector Pin-out
1 2 3 4 5 6
1) AUX 1 IN
2) AUX 2 IN
3) Recorder Out 4) Recorder Out
5) UnSel Rec Out 6) UnSel Rec Out
1 2 3 4
1) TX
2) Ground
3) PTT
4) RX
RJ-H Connector Rear View