Connect both control cables (see
commutator's CONTROL A and CONTROL B connectors (see
the respective transceiver's A and B control (Band Data) connectors.
Table 2-1 | Control cable wiring for YAESU FT-990 and FT-1000MP transceivers
ACOM 2S1 commutator
Rear panel
CONTROL A/B connectors
1 | +(11-14) VDC
2 | TX GND
3 | GND, Shield
4 |
TXINHIBIT
MIC-type*
Housing
connector,
4-pin, male
(Rear panel
front view)
Table 2-1 | Control cable wiring for YAESU FT-990 and FT-1000MP transceivers
* Designation MIC-type is used for a circle 4-pin connector type and does not mean a
microphone!
Do not connect the control cable to the microphone input of your transceiver - this will
damage the transceiver!
If any of your transceivers is different (nor YAESU FT-990, nor FT-1000MP), you'll need to
•
replace 8-pin, DIN connector on delivered control cable or to make a suitable adapter.
Please, see
Table 2-2 | Signals and pin out of the CONTROL A/B connector
assemble the correct control cable according to the following instructions:
Using an inappropriate cable may cause a serious damage to the ACOM 2S1 and your
transceivers (not covered under warranty)!
Page 16 of 32 | S e c t i o n INSTALLATION
Figure 2-2 | Control cables YAESU FT-990 and FT-1000MP transceivers
Connecting cable
1
––––––––
2
––––––––
3
––––––––
4
––––––––
MIC
-
Not connected
connector,
-
4-pin,
Not connected
female
-
Not connected
(Solder view)
-
Not connected
Housing
Cable shield
NOTICE
NOTICE
User's Manual | ACOM 2S1 | Automatic XCVR Commutator
Figure 2-1 | Rear panel - Connections
YAESU FT-990/FT-1000MP
transceivers / Rear panel
1
1 |
2
2 |
3
3 | GND
8
4 | Band A (OUT)
Horseshoe DIN
4
5 | Band B (OUT)
connector,
5
6 | Band C (OUT)
8-pin,
male
6
7 | Band D (OUT)
(Solder view)
7
8 | LINEAR
Housing
Housing
and your transceiver's manual to
) from
, Pos. (d)) to
Band Data connector
+13.8 V (OUT)
TX GND (OUT)
Horseshoe
DIN-type
connector,
8-pin,
female
(Rear panel
front view)
June 2022
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