Acom ACOM2100, Руководство по эксплуатации, Страница: 8 / 29

8
N O T E
Your amplifier will not work if KEY-IN is not connected properly.
Transceiver producers give different names to this output, such as TX-GND, SEND, T/R-LINE, PTT,
etc. Some transceivers require that "ground on transmit" be implemented via a software command,
or by changing the setting of a switch on the rear panel or in the interior of the transceiver. Check your
transceiver manual. Consult with your dealer if you are having difficulty.
The switching voltage presented from amplifier KEY-IN socket to the transceiver “ground on transmit”
output does not exceed 13V (positive to the ground). The closed-circuit current is below 5mA.
e) The KEY-OUT socket on the rear panel provides an extra control signal from the amplifier to the
transceiver. It can be used to improve the transmit/receive switching safety. The rating on this output
is very low current, so be certain that the load will not exceed 50VDC when it is open circuit and 20mA
when it is closed.
If your transceiver has a suitable input that disables transmission, we recommend that you connect it
with a cable terminated in a phono (RCA) connector to the KEY-OUT socket of the amplifier. Transceiver
producers give different names to this input and they are for instance TX-INHIBIT, MUTE, LINEAR, etc.
Check your transceiver manual.
Your amplifier will function normally if the KEY-OUT remains unused.
f) Preparation of wall outlet for the amplifier.
W A R N I N G
If your amplifier is only fitted with one mains fuse, it is suitable for the European
Union ONLY. Your dealer will check that your amplifier is correctly fused before
it is shipped to you, based upon your indicated location. Customers should
check with a qualified electrician if the amplifier is to be used outside the country
for which it was purchased.
Your dealer will fit the correct mains plug for your country, and will check that the amplifier is correctly set
for the mains network applying there. If the amplifier is to be connected to the mains network in another
country, check with your dealer or a qualified local electrician before use there.
W A R N I N G
Before connecting the amplifier to your mains supply, be sure that the supply is
correctly wired, and that it is adequate for the current drawn by the amplifier - up
to 16A from 200/240V and 20A from 100/120V. Make certain that the grounding
lead is connected properly in the wall outlet used for the amplifier.
It is preferable that you use a wall outlet close to the power source. The power cord leads and associated
wiring should be at least 2.5mm
2
(AWG 13 or SWG 15). Check if the respective fuses can handle current
up to 16A (20A for 120VAC) as well, and whether the voltage corresponds to the voltage for which the
amplifier is set (S.2-2). If you connect the amplifier to a different mains outlet, be sure that you check it
as well.
Make sure the main Power Switch on the rear panel is in the OFF position and insert the amplifier's mains
plug into the wall outlet prepared for it. The amplifier remains switched off at this time.
2-5. Installation of External Fan
This fan (Fig. 2-1) is not necessary in SSB and CW modes, or in continuous carrier modes (RTTY, SSTV
etc.) with a maximum carrier-down time of 5 minutes and a subsequent pause of 3 minutes. For higher
duty cycles such as continuous broadcast or increased ambient temperatures the fan is recommended.
The auxiliary fan (92x92x25mm or 92x92x38mm) must be a brushless type, 2...5W/24VDC. It may be
installed by your dealer or by the manufacturer on request.