Interfacing with ACOM amplifiers
Posted: Tue Nov 30, 2021 9:50 pm
I will be using an ACOM amplifier within a few weeks (depends on how bad the supply crunch is). My radio is ANAN 7000 DLE MKII (Black Edition).
The ACOM manual states (this is in regards to the "KEY-OUT socket" on the back apron of the amplifier):
"The KEY-OUT socket provides an extra control signal from the amplifier to the transceiver. It could be used to improve the transmit/receive (TX/RX) switching safety.
NOTICE:
KEY-OUT is a low-power open-drain output, make sure that the signal voltage coming from the respective transceiver connection does not exceed 50 VDC (open circuit) and the closed-circuit current is below 20 mA.
If your transceiver has a suitable input that disables transmission unless grounded externally, we recommend that you connect it with a shielded cable terminated in a Phono (RCA) connector to the KEY-OUT socket of the amplifier.
ACOM will operate normally with KEY-OUT unconnected if your transceiver has no such input........"
Am I being overly cautious in thinking that I may want to run a phono cable between the KEY-OUT socket of the ACOM and "Connector #16, Digital-IN" ("transmit inhibit") of the ANAN? In theory, this connection is NOT needed, but I would think having the cable there would be "extra insurance."
Would appreciate comments and thoughts on the above!
Best!
JJ
The ACOM manual states (this is in regards to the "KEY-OUT socket" on the back apron of the amplifier):
"The KEY-OUT socket provides an extra control signal from the amplifier to the transceiver. It could be used to improve the transmit/receive (TX/RX) switching safety.
NOTICE:
KEY-OUT is a low-power open-drain output, make sure that the signal voltage coming from the respective transceiver connection does not exceed 50 VDC (open circuit) and the closed-circuit current is below 20 mA.
If your transceiver has a suitable input that disables transmission unless grounded externally, we recommend that you connect it with a shielded cable terminated in a Phono (RCA) connector to the KEY-OUT socket of the amplifier.
ACOM will operate normally with KEY-OUT unconnected if your transceiver has no such input........"
Am I being overly cautious in thinking that I may want to run a phono cable between the KEY-OUT socket of the ACOM and "Connector #16, Digital-IN" ("transmit inhibit") of the ANAN? In theory, this connection is NOT needed, but I would think having the cable there would be "extra insurance."
Would appreciate comments and thoughts on the above!
Best!
JJ