Acom ACOM2100 Operating Manual

Contents

Acom ACOM2100 Operating Manual Manual pdf 8 page image

8N O T EYour 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 yourtransceiver 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 thetransceiver. It can be used to improve the transmit/receive switching safety. The rating on this outputis very low current, so be certain that the load will not exceed 50VDC when it is open circuit and 20mAwhen it is closed.If your transceiver has a suitable input that disables transmission, we recommend that you connect itwith a cable terminated in a phono (RCA) connector to the KEY-OUT socket of the amplifier. Transceiverproducers 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 GIf your amplifier is only fitted with one mains fuse, it is suitable for the EuropeanUnion ONLY. Your dealer will check that your amplifier is correctly fused beforeit is shipped to you, based upon your indicated location. Customers shouldcheck with a qualified electrician if the amplifier is to be used outside the countryfor which it was purchased.Your dealer will fit the correct mains plug for your country, and will check that the amplifier is correctly setfor the mains network applying there. If the amplifier is to be connected to the mains network in anothercountry, check with your dealer or a qualified local electrician before use there.W A R N I N GBefore connecting the amplifier to your mains supply, be sure that the supply iscorrectly wired, and that it is adequate for the current drawn by the amplifier - upto 16A from 200/240V and 20A from 100/120V. Make certain that the groundinglead 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 associatedwiring should be at least 2.5mm 2 (AWG 13 or SWG 15). Check if the respective fuses can handle currentup to 16A (20A for 120VAC) as well, and whether the voltage corresponds to the voltage for which theamplifier is set (S.2-2). If you connect the amplifier to a different mains outlet, be sure that you check itas well.Make sure the main Power Switch on the rear panel is in the OFF position and insert the amplifier's mainsplug into the wall outlet prepared for it. The amplifier remains switched off at this time.2-5. Installation of External FanThis fan (Fig. 2-1) is not necessary in SSB and CW modes, or in continuous carrier modes (RTTY, SSTVetc.) with a maximum carrier-down time of 5 minutes and a subsequent pause of 3 minutes. For higherduty 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 beinstalled by your dealer or by the manufacturer on request.