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Maxon SD125E Series User Instruction Manual

Rf link modules
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User Instruction Manual
MaxonCIC Corp. Chongho Bldg, #7-61, Yangjae-Dong, Seocho-Ku, Seoul, 137-130, Korea
Phone: (82) 2 3498 - 3114; Fax: (82) 2 3498 -3113
April 2008

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Summary of Contents for Maxon SD125E Series

  • Page 1 User Instruction Manual MaxonCIC Corp. Chongho Bldg, #7-61, Yangjae-Dong, Seocho-Ku, Seoul, 137-130, Korea Phone: (82) 2 3498 - 3114; Fax: (82) 2 3498 -3113 April 2008...
  • Page 2 Radio Frequency (RF) electromagnetic energy emitted by FCC regulated equipment. Maxon subscribes to the same safety standard for the use of its products. Proper operation of this radio will result in user exposure far below the Occupational Safety and Health Act (OSHA) and Federal Communications Commission limits.
  • Page 3 About your SD125E Series Data Radio The Maxon SD-125E Series of RF Link Modules from Maxon utilize the latest technology in their designs and manufacturing. Both the UHF and VHF models are Phase Lock Loop Synthesizer(PLL) / microprocessor controlled and offer 1/5 Watt(Low/High) programmable output power per channel with 16 channel capability.

  • Page 4: Specifications

    Specifications GENERAL Equipment Type ……………………………………………………… Data radio Performance Specifications………………………………………… TIA/EIA -603 / IC, RSS212 Band …………………………………………………………………… VHF(SD125VE_V2) / UHF(SD125VE_U) Channel Spacings …………………………………………………… 25 kHz, 12.5 kHz programmable RF Output Power …………………………………………………… 1 watt, 5 watt programmable Modulation Type …………………………………………………… F1D, F3E Intermediate Frequency ……………………………………………...

  • Page 5: Transmitter Specification

    TRANSMITTER Specification Carrier Power: ………………………………………………………… Nom. Max. Min. Hi ………………………………………………………………………5W < 6W > 4.5W Low ……………………………………………………………………1W < 1.5W > 0.8W Sustained Transmission …………………………………………… Nominal conditions Time : 5 30 Sec. Power: >90% >85% >80% Frequency Error ……………………………………………………… < 0.75 kHz Nominal condition for UHF ±5.0 ppm Extreme condition for UHF Frequency Deviation: 25 kHz Channel Spacing……………………………………………...
  • Page 6 RECEIVER Specification Sensitivity (12dB Sinad) …………………………………………… Standard B.W < -118 dBm, Narrow B.W <-117 dBm @ Nom. Condition Standard B.W < -115 dBm, Narrow B.W <-114 dBm @ Extreme Condition Amplitude Characteristic....... . < ±3 dB Adjacent Channel Selectivity: 25 kHz Channel Spacing ……………………………………………...
  • Page 7 Environmental (performance without degradation unless stated) Temperature…………………………………………………………deg C Operating ……………………………………………………………-30℃ to +60℃ Degradation Specified @Extreme Storage……………………………………………………………….-40℃ to +80℃ Recharging …………………………………………………………..-10℃ to+55 ℃ ESD ………………………………………………………………….. 20kV (C-MIC≥15KV) Vibration ………………………………………………………………MIL STD 810 C Procedures Ⅰ,Ⅱ,Ⅴand IEC68 26...
  • Page 8 MAXON SD-125 RF LINK MODULE Intentionally Left Blank PAGE-6 October 98...
  • Page 9 MAXON SD-125 RF LINK MODULE The SD125E RF Link Module is the only item included in the shipping container.
  • Page 10 MAXON SD-125 RF LINK MODULE The MaxonCIC SD125E Series of RF Link Modules from MaxonCIC utilizes the latest technology in its design and manufacturing. Both the UHF and VHF models are PLL (Phase Lock Loop Synthesizer) / microprocessor controlled, and offer one to five watts of power with 16 channel capability. Multiple functions including 1200 to 9600 baud rates, AC and/or DC audio coupling, GMSK and FSK modulation are standard in these fully programmable wide bandwidth RF Link Module units.
  • Page 11 The Power Save feature is used when an external battery is used as the power source. When Power Save is enabled, the receiver “ON” and “OFF” time can be programmed into the radio and allows the operator to set the length of time the receiver is asleep. MAXON SD-125 RF LINK MODULE...
  • Page 12 MAXON SD-125 RF LINK MODULE The SD125E Series radio requires the ACC-900E Programming Software, 9-15 VDC 200mA Power Supply and ACC2125 Programmer Interface Cable. Refer to the ACC-900E Programming for detailed information on programming the SD125E Series radio. The SD-125 UHF/VHF Receiver is by design, broad band covering UHF(400-430 MHz & 440-470 MHz &...
  • Page 13 TX Deviation and Balance Adjustment Set the unit to a mid-frequency and input the TX data with 400 Hz standard audio level. Increase the signal level to 20 dB from standard level. Monitor the demodulated signal from service monitor. Adjust RV3 to make the monitored signal to be a balanced square wave.
  • Page 14 MAXON SD-125 RF LINK MODULE MAXON SD-125 RF LINK MODULE Surface Mount Components Surface mount components should always be replaced using a temperature controlled soldering system. The soldering tools may be either a temperature controlled soldering iron or a temperature controlled hot-air soldering station.
  • Page 15 Grip the component with tweezers or small needle nose pliers. Alternately heat the metalized terminal ends of the surface mount component with the soldering iron. If a hot-air system is used, direct the heat to the terminals of the component. Use extreme care with the soldering equipment to prevent damage to the printed circuit board (PCB) and the surrounding components.
  • Page 16 Pin1..Audio In (Data RX) Pin2..Audio Out (Data TX) Pin3..PTT Pin4..GND (Ground) Pin5..B+ (8-18 Volts DC) Pin6..Carrier Detect (Squelch) Pin7..N/C No Connect Pin8..Switch...

This manual is also suitable for:

Sd-125e seriesSd-125e u1Sd-125e u2Sd-125e u3Sd-125e v2