ACOM 2000S | Automatic Antenna Selector & Remote Antenna Switch

Description

Usage
The ACOM 2000SW is a remote 1 out of 10 antenna switch designed for outdoor use (dust and rain protected). The 2000SW switch is controlled via 4-bit parallel BCD code input commands (e.g., from ACOM 2000S automatic antenna selector).

Integration capabilities

• When used in combination with the ACOM 2000S antenna selector and the ACOM 2000A Automatic HF Linear Amplifier, antenna selection information generated by the ACOM 2000A is communicated to the 2000S. The 2000S displays the currently selected antenna number and drives the control signals needed to operate the remotely-located ACOM 2000SW;
• The 2000SW is controlled by 4-bit BCD code (positive or inverted, internally selectable) input commands. This make integration in other automatic antenna systems very easy;

 

Compatibility

• Directly compatible with ACOM 2000A automatic HF linear amplifier using the ACOM 2000S antenna selector;
• Control is compatible with other systems via 4-bit BCD code input commands;
• For manual control, only a simple BCD-coding switch plus 27 VDC / 150 mA unregulated power supply are enough;

 

Continuous carrier
Up to 5 kW continuous carrier: Teflon (PTFE) insulated connectors for 100% duty cycle (continuous) operation.

Construction
Gold-plated contacts for excellent reception, no contact-derived cross-modulation phenomenon.

Protection
Anti-hot switching self protection for reliable contact operation. Monitors RF incoming power and generates a “Ready to transmit” output signal for maximum operating flexibility. Grounds unused antennas during operation for excellent crosstalk isolation. After switching off, all antennas are automatically grounded for maximum lightning safety.

Antenna switching time
Less than 0.15 seconds operating time, including bounces.

Easy to istall
Only 2 holes needed, mounting bracket included.

Recommendation
Both ACOM 2000SW (remote antenna switch) and ACOM 2000S (automatic antenna selector) operate perfectly together. Thus, is recommended both devices be ordered as a package.

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Number of Antennas

• Selectable: 1 out of 10;

Serial Interface

• RS-232, ±12 V serial port of ACOM 2000A and/or PC/device (Serial port parameters: 1200, N, 8, 1);
• Serial protocol, Commands set, and detailed Network rules are available in the User’s Manual;

Parallel Interface

• 4-bit inverted parallel BCD code;
• Logical Low Input: -1 … +1.25 V, 1.2 kOhm input resistance;
• Logical High Input: +7.5 … +18 V, 1.2 kOhm input resistance;
• Logical Low Output: 0 … +1 V, 15 mA drive, 60 mA sink;
• Logical High Output: +20 … +30 V, 1.2 kOhm Output resistance;

KEY-IN

• Open KEY voltage (drive): +10 … +12 V;
• Closed KEY current (drive): 10 … 12 mA;
• Input voltage (resistance) @ 12 mA: -1 … +2 V (0 … 160 Ohm) to consider the KEY is “closed”;

KEY-OUT

• Switching voltage (open circuit): -0.5 … +40 V;
• Switching current (closed circuit): 0 … 20 mA sink;
• Output resistance @ 20 mA sink current (closed circuit): 100 … 120 Ohm;

Output Power Supply Voltage for External Devices

• +20 … +30 V unregulated, 0 … 200 mA;

Power Supply

• 120/240 VAC internally selectable, ±10% tolerance, 50-60 Hz, 15 VA;

Size & Weight (operating, excluding connected cables)

• WxDxH: 131x164x51 mm, 1.3 kg (5.2×6.5×2.1 inches, 2.9 lbs.);

Shipping Size & Weight

• WxDxH: Approx. 180x200x100 mm, 1.9 kg (7.1×7.9×4.0 inches, 4.2 lbs.);
• Please, contact us for shipment details;

Operating environments

• Temperature range: 0 to +50 degrees Celsius (32 degrees F to 122 degrees F);
• Relative air humidity: up to 95% @ +35 degrees Celsius (95 degrees F).

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Switching Capacity

• 10 antennas to 1 output;

Operating Frequency Range

• 0.1 to 60 MHz continuously;

Rated Power (continuous)

• For 0.1 to 30 MHz:
  • 5000 W @ VSWR 1:1;
  • 2500 W @ VSWR 2:1;
  • 1600 W @ VSWR 3:1;
• Up to 60 MHz:
  • 3600 W @ VSWR 1:1;
  • 1800 W @ VSWR 2:1;
  • 1200 W @ VSWR 3:1;

Characteristic Impedance

• 50 Ohm unbalanced, UHF type SO-239A PTFE connectors;

Mismatch VSWR

• For 0.1 to 2 MHz – Better than 1.02:1;
• Up to 30 MHz – Better than 1.08:1;
• Up to 60 MHz – Better than 1.20:1;

Crosstalk Isolation

• For 0.1 to 2 MHz – Better than -100 dB;
• Up to 30 MHz – Better than -70 dB;
• Up to 60 MHz – Better than -66 dB;

Antenna Switching Time

• Less than 0.15 seconds operating time, including bounces;

Parallel Input/Output Control

• 4-bit BCD input code (positive or inverted – internally selectable), plus RDY output signal;
• Logical Low Input: -1 … +1.25 V, 1.2 kOhm input resistance;
• Logical High Input: +7.5 … +18 V, 1.2 kOhm input resistance;
• Logical Low Output: 0 … +1 V, 15 mA drive, 60 mA sink;
• Logical High Output: +20 … +30 V, 1.2 kOhm output resistance;

Power Supply

• +(24 … 31) VDC, 150 mA maximum consumption;

Control Cable Consideration

• • 6×0.2 mm² (6xAWG24/SWG25) shielded together, 50 m (165 feet) maximum length;

Other cables may be selected proportionally, i.e.:

• 6×0.5 mm² (6xAWG20/SWG21) shielded together, 125 m (400 feet) maximum length;
• 6×0.07 mm² (6xAWG28/SWG30) shielded together, 18 m (60 feet) maximum length;

Size & Weight (operating, including mounting bracket, and excluding connected cables)

• WxDxH: 208x178x102 mm, D=160 mm, 1.9 kg (8.2×7.1×4.1 inches, D=6.3 inches, 4.2 lbs.);

Shipping Size & Weight

• WxDxH: Approx. 180x200x190 mm, 2.5 kg (7.1×7.9×7.5 inches, 5.6 lbs.);
• Please, contact us for shipment details;

Operating environments

• Protection class: IP 53 (dust and rain);
• Temperature range: -30 to +60 degrees Celsius (-22 degrees F to 140 degrees F);
• Relative air humidity: up to 98% @ +40 degrees Celsius (104 degrees F);
• Height above sea level: up to 3050 m (10000 ft) without output deterioration.

There are several individual purchase options available:

• ACOM 06AT | Automatic Antenna Tuner and Switch;
• ACOM 04AT | Remote Automatic Antenna Tuner and Switch;
• ACOM eBox | | Ethernet Remote Control Device.