Instruction manual
ACU-1000 Operations Manual
Interoperability Now 2-41
2.12.2 HSP-2A Jumper Settings
The HSP-2A has a variety of jumpers performing the functions detailed in. Default Settings are
marked with *.
Table 2-11 HSP-2A Jumpers
JUMPER
(As labeled)
POSITION
POSITION
POSITION
JP1- SPKR
1-2 [Internal] *
2-3 [External]
N/A
JP3- VOX
Hangtime
1-2 [Short] *
Not used with ACU-1000
2-3 [Long]
N/A
MIC Level
JP4 [-6dB gain]
JP5 [0dB gain] *
JP6 [+6dB gain]
Line Level
JP7 [-6dB gain]
JP8 [0dB gain] *
JP9 [+6dB gain]
JP-10 - P13
Configuration
1-2 [External Speaker
on pin 6 of P13] *
2-3 [TXB/GND on
pin 6 of P13]
N/A
Notes:
To use the external speaker, the SPKR jumper must be set to “External” and JP-10 must also
be set to position 1-2 to bring this signal to rear panel connector P13.
MIC Level jumpers JP4, JP5, and JP6 set the gain of the MIC input. When using the supplied
handset, the MIC level jumper should be set to JP5.
The Line Level jumpers JP7, JP8, and JP9 set the gain of the audio input available at the P13
RXA terminal.
JP3 and R123 (VOX hangtime & sensitivity) not used with ACU-1000.
JP10
LO
JP8
J9
JP3
R123
SPKR
SW1
HANDSET
P6
R72
VOLUME
HANGTIME
SHORT
LONG
1
2
3
SPKR GND
J7
NO
HI
LO
NO
HI
JP5
JP6
JP4
SPKR EXT
JP1
1 2 3
VOX
SENS
HSP-2A Module
Figure 2-10 HSP-2A Module Showing Jumper Location