J1003 Dsub 9-Pin Data Connector Pin Assignment - Vertex Standard VX-2000U Service Manual

Operating Manual Reprint

J1003 DSUB 9-Pin Data Connector Pin Assignment

À SQ: Squelch Signal Output
Carrier In: Active High (5 V / 47 kΩ)
Á RX_AUD_OUT: Received Audio Output (Two choices available)
Á-1 De-Empasized Audio Output: 100 mV / 10 kΩ
This output level's default state is fixed at the factory by
having no jumper at JP1003 and soldering the jumper at
JP1002 on the MAIN Unit.
Á-2 Flat / Unmuted Audio Output: 250 mV / 10 kΩ
(Unsolder the jumper at JP1002 and solder a jumper at JP1003
on the MAIN Unit to activate Á-2)
 EXT_MIC: External MIC Audio Input (Two choices available)
Â-1 Pre-Emphasized / IDC / Splatter Filtered Audio Input:
2.5 mV / 600 Ω
This input is fixed at the factory by attaching capacitor
C1254 across JP1005 and soldering a jumper at JP1004
on the MAIN Unit.
Â-2 Flat (Non-Pre-Emphasized) Audio Input: 650 mV / 10 kΩ
(Remove the jumper at JP1004 and solder a jumper across
JP1005 on the MAIN Unit to activate Â-2)
6
Ä Ã Â Á À
È Ç Æ Å
à Not Used
Ä GND: Ground
Å A_OUTPUT: Accessory Output (Two choices available)
Å-1 Not Used
This is the default setting at the factory (no jumper across
JP1001 on the MAIN Unit).
Å-2 Accessory Output: Open Collector Output
"A" Lamp O
Maximum voltage: 13.8 V, Maximum sink current 5 mA
(Solder a jumper at JP1001 on the MAIN Unit to acti-
vate Å-2)
Æ PTT: External PTT Signal input
GND: TX, Open: RX
Ç 5 V
Switched and regulated DC 5 V output for supplying
power to an accessory.
Maximum output current is 50 mA.
È Not Used
: Low, "A" Lamp O : Open
N FF