SL55 User Manual
This product is marked with

0168 !

in accordance with the Class II product requirements specified in the R&TTE Directive, 1999/5/EC. We hereby declare that the above named product is in conformity to all the essential requirements of Directive 1999/5/EC. French Translation Nous dclarons que le produit rfrenc ci-dessus satisfait aux exigences R&TTE 1999/5/EC qui lui sont applicables. Spanish Translation Certificamos que el aparato es conforme con lo establecido en las disposiciones de la Directiva 1999/5/CE. German Translation Wir mchten hiermit bekanntgeben, da das oben genannte Produkt in bereinstimmung mit allen erforderlichen Bedrfnissen der 1999/5/EC Direktive seht

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CONTENTS

INTRODUCTION.3
THE MAXON SL55. NOTES TO THE USER. PRECAUTIONS IN USE. PREPARING FOR USE. FITTING INSTRUCTIONS.3.4.4.5.5
CONTROLS & INDICATORS.7
TOP PANEL.7 SIDE PANELS.7 STATUS LED.8 RADIO PERFORMANCE.8 CHARGING THE BATTERY.9 DIAGNOSTIC MESSAGES.9

SL55 SERIES OPERATION.10

SWITCHING THE RADIO ON.10 TRANSMIT AND RECEIVE.10 RECEIVING CTCSS/DCS.10 TRANSMIT TIME OUT TIMER.10 BUSY.11 TX LOCKOUT.11 MONITOR/TONE DEFEAT.11 CHANGE CHANNEL.11

OPTIONS.12

SOP55-01 FIXED SELCALL MODULE.12 VOICE PRIVACY OPTIONS.12

INTRODUCTION

THE MAXON SL55
Key features 16 channels: allows flexible operation and system Tri colour LED indicator shows you the status of the radio Top panel controls: for belt-mounted use Plug in options Encryption: allows clear or secure transmissions Fixed Selcall module: provides additional signalling

facilities. expansion

Signalling options Continuous Tone Coded Squelch Signalling (CTCSS) and
Digitally Coded Squelch (DCS): CTCSS/DCS helps to screen you from calls intended for other users or user groups. It is also used in some systems to access wide-area repeaters.

Robustness built-in

The SL55 is of a sturdy construction and is dust and water resistant, to the level set down in IEC529 level IP54 and is also approved to the rigorous tests of US MIL STD 810C, D, E. This makes the SL55 ideal for operation in a variety of harsh environments.

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NOTES TO THE USER

cloth.
Care of equipment Keep the exterior of the radio clean using a soft damp Keep battery contacts clean and free of corrosion. Do not store batteries in a discharged state. Do not use solvents or spirits for cleaning as they may Do not carry the radio by the antenna. Warnings The use of an attachment not recommended or supplied
by Maxon may cause damage to equipment or injury to personnel. Never attempt to disassemble, modify or repair the unit unless the work is carried out by a qualified technician. Incorrect assembly, modification or repair may cause irreparable damage to your unit. For service or repair always return your radio to an authorised Maxon dealer. damage the radio housing.

PRECAUTIONS IN USE

Maxon Sewon Europe Ltd. draw your attention to the
following provision of the U.K. Highway Code, Section 43: `You MUST exercise proper control of the vehicle at all times. Do not use a hand-held telephone or microphone while you are driving. Find a safe place to stop first. Do not speak into a hands-free microphone if it will take your mind off the road. You MUST NOT stop on the hard shoulder of a motor way to answer or make a call, except in an emergency. NEVER use the radio in an aircraft NEVER switch on the radio near to an explosive atmosphere as electrical detonation can occur. NEVER use the radio near to sensitive medical equipment.

PREPARING FOR USE

Unpacking and inspection
Unpack the radio and check that you have received the following items: SL55 handportable radio Battery pack Antenna Belt clip Wall charger If any items are missing, please contact your dealer.

FITTING INSTRUCTIONS

Fitting and removing the antenna
A high quality matched antenna is supplied with the SL55 radio. Install the antenna by threading clockwise until it is firmly seated. Do not over tighten. To remove the antenna, reverse the above procedure. Never operate the radio without the antenna fitted.

Fitting the battery pack

(Figure 1)
Position the guides of the battery in line with the radio battery guide rails and slide the battery into position until a click is heard. To remove, hold the radio in one hand, slide and hold battery lock. With the other hand, push the battery in downward direction.
Fitting and removing the belt clip (Figure 2)
Install belt clip on back of battery until it clicks into place. To remove, pull release tab outward and push belt clip up.

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Figure 1

Figure 2

CONTROLS & INDICATORS
Antenna socket Channel selector Volume control: The volume control is the ON/OFF switch and controls the speaker volume. Status LED: Illuminates and flashes in different colours to tell you the current status of your radio. Battery release catch

TOP PANEL

PTT button: activates the transmitter for speech. Hold the button down while you are talking. Monitor button: allows a channel to be monitored. This button may be used to assist clarity if the audio chops on and off whilst receiving. Option button: controls any internally fitted option i.e. an inversion scrambling board.

SIDE PANELS

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Microphone Speaker Accessories connector/charge socket: lift plastic cap and connect Maxon accessories. Insert the charging adapter into the lower hole of the accessory connector.

STATUS LED

STATUS NORMAL
Note: If a Plug In Option is fitted, please refer to the OPTIONS section for additional information. DESCRIPTION Power on/Ready Busy Correct Call Transmit Scanning WARNING Battery Low ERROR EEPROM Error PLL Error Filtering Error Busy Lock LED COLOUR Yellow Green Red Green flashing Red flashing Red flashing Red flashing Red flashing Yellow flashing AUDIBLE TONE Melody/ Four tones, repeated Single tone repeated Double tone repeated Three tone repeated Single tone

RADIO PERFORMANCE

Optimum positioning of the radio will significantly improve the effective transmission range. Moving the radio just a few feet may produce a much clearer signal. In marginal areas, placing the unit on a metal surface such as the roof of a car may also help.

CHARGING THE BATTERY

When your battery reaches low capacity, you should recharge the battery or replace with a charged battery as soon as possible. In this condition, use of the transmitter should be avoided as this quickly drains the battery. The rechargeable battery packs may be recharged separately or while still attached to the radio. To use the trickle charger supplied with the radio, turn off the radio and insert the charging adapter into the lower socket of the accessories connector. The battery should be fully charged in 1012 hours. Using the Maxon fast charger, batteries may be charged in under 2 hours.

DIAGNOSTIC MESSAGES

In addition to the low battery condition, a flashing red status LED may also indicate fault conditions. Should your radio apparently not operate correctly, replace the battery with one known to be fully charged. If the condition persists, or the radio emits an unexpected continuous pattern of audio beeps, or will not transmit or receive as it does normally, return the radio to your Maxon dealer. Unprogrammed channel If your radio has been set-up for less than the maximum number of channels, turning to a blank channel will cause your radio to beep and the status LED will flash red, indicating that the channel is unusable. Receive only channel Your radio may be set-up to receive on a channel but not to transmit. If PTT or call functions are started on such a channel, the radio will beep and the LED will flash red.

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SL55 SERIES OPERATION
Note: The availability of the functions described in this section is dependent on the set-up of your radio. Please consult your Dealer or Supervisor for further information.

SWITCHING THE RADIO ON

Switch the radio on by turning the volume control clockwise until its clicks. An audible alert sounds on completion of the automatic self-test.
The PTT (Press-To-Talk) button is located on the side of the SL55 and activates the transmitter. Before transmitting, it is recommended that you monitor the channel to ensure that it is not in use. The status LED illuminates amber/green whenever your radio is receiving. You may listen to the channel by pressing the Monitor button. Wait until any incoming message has finished before starting your own transmission. Press and hold the PTT button while making a transmission speak clearly with the radio approximately 5 to 8 cms away release the PTT button to listen. The status LED illuminates red whenever your radio is transmitting. If your radio has been set-up for Transmit Time Limiting, your radio will return to the Receive state after this transmit period. If your radio has been set-up for Transmit Lockout, you may not be able to transmit unless the channel is clear.

TRANSMIT AND RECEIVE

RECEIVING CTCSS/DCS
Your SL55 may be set-up so that only calls with the radios specified code will be heard. In normal operation, the speaker will remain quiet until the correct CTCSS/DCS code is received. The status LED will glow green and the message will be heard.

TRANSMIT TIME OUT TIMER

If set-up, your radio will stop transmitting after a preset period of time. An audible alert is heard at the end of the period.
When your radio receives a signal above a preset minimum level, the LED will illuminate yellow to tell you that there is activity on the channel you are switched to. Your radio may be set up so that you hear who is talking straight away or it may be set up to prevent this until the correct CTCSS/DCS code is received.

TX LOCK-OUT

The SL55 may be set-up to disable the transmitter when the channel is busy. If the PTT button is pressed, an audible alert will sound and the status LED will flash yellow.

MONITOR/TONE DEFEAT

The Monitor button is located on the side of the SL55, below the PTT button. Your radio may be set-up to either allow or dis-allow monitoring of a channel. Press and hold the monitor button to listen to the channel. When on, the radio will continue to receive even if the signal is very low. This may assist clarity if the audio `chops on and off while receiving.

CHANGE CHANNEL

The SL55 can access a maximum of 16 channels, although most units are programmed for less. Turn the channel control to the channel number on which you wish to operate.

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OPTIONS
A number of plug-in Option boards are available for the SL55, which enhance the features of the radio. Please refer to your dealer for details of any options fitted to your radio (Note: only one option can be fitted at any time).
SOP55-01 FIXED SELCALL MODULE (Option 03)
If your radio has been upgraded with the SOP55-01 Selcall Module, a range of additional signalling options is available. These features can reduce the time spent receiving messages meant for other radios and makes better use of the radio channel. With the Selcall option fitted, the operation of the radio will change. An instruction sheet with further details on the operation of the radio with Selcall is included with the module.
VOICE PRIVACY OPTIONS (VP10 / SOP55-01)
The SL55 can be fitted with one of two Voice Privacy options that provide protection against unauthorised eavesdroppers. The Fixed Inversion Scrambler (VP10 or SOP55-01) provides a solution against the casual eavesdropper, with simple operation. Mode Selection: To turn the Voice Privacy option on (select Secure mode), the Option button is used. Press the Option button to toggle between Clear / Secure mode. The Status LED is used to indicate the current mode (see below). Clear Mode: With the option turned off, the SL55 will operate in Clear mode. All transmissions will be open to interception. Secure Mode: With the option on, all transmissions from the SL55 will be scrambled. Receive Mode: If your radio is fitted with the Inversion scrambler (VP10), you must select the correct mode to listen to a received message. If the incoming message is scrambled, you must turn on the scrambler. In the same manner, if the incoming message is NOT scrambled, you must turn the Inversion scrambler OFF to listen to the message.

J3081 Maxon A4 Data SL55 13/9/06 12:59 pm Page 1
With the Maxon guarantee of quality, performance and reliability.
The SL55 is the professional solution to your communication needs. A compact, robust radio in a moulded polycarbonate case, the SL55 meets demanding military standards. Its extremely robust and easy to operate in any environment: emergency situations, retail, warehouse or open air, with dust and water spray protection. Its high-capacity rechargeable battery pack gives good operational range and extended performance. The SL55 offers 16 channels, flexible PC programming and CTCSS/DCS, channel spacing, output power and full scanning. The SL55 offers a security upgrade option, with voice privacy and selective calling features.

www.maxoncic.co.uk

Maxon SL55 hand portable
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Accessories:

Additional accessories are also available; please contact us for details of the full range.

GENERAL

Performance Specifications Band

0168 !

R&TTE Directive 1999/5/EC VHF (V1): 136-162 MHz VHF (V2): 146-174 MHz UHF (U1): 400-430 MHz UHF (U2): 440-470 MHz

Batteries:

Antennas:

Chargers:

Number of Channels Channel Spacing Operation Antenna Impedance Tone Sets Power Supply Current Consumption
16 12.5kHz, 20kHz, 25kHz (Programmable per channel) Half Duplex 50 Ohm, Stud CTCSS/DCS encode/decode 7.5V dc nominal OFF: <10mA <30mA Standby (muted) with battery save ON <65mA Standby (muted) with battery save OFF <500mA Unmuted with 100% AF power <2.4A Transmit@5W RF Output >10.5 hrs @ 1W with 1200mAh battery pack Intermittent 90:5:5 (Standby: RX: TX) 450g with standard battery 159(H) x 62(W) x 45(D) 1-5W (Programmable hih/low) UHF: Better than -117dBm VHF: Better than -118dBm 450mW max (8 Ohm external speaker) 800mW min <10% THD @1W 2ohm internal speaker

MPA-1550 Audio:

CA2507

CH650-01

MA25-01 Carrying:

HS25-01

HS25-10

LC25-02

QPA-1496

Battery Life

Audio Power Output

ENVIRONMENTAL

Operating Temperature Range Robustness
Chase Marketing Solutions t. 01235 851529
Protection against ingress of dust and water EMC Humidity
15 to +35 deg C (nominal) 20 to +55 deg C (extreme) Approved to Mil Std 810 C procedures I, II & V, D & E IEC 529 IP54 EMC Directive 89/336/EEC May 89 EIA/TIA 603 (95%)
Maxon CIC Europe Limited Maxon House, Cleveland Road Hemel Hempstead, Herts, HP2 7EY, UK Tel: +44 (0)777 Fax: +44 (0)515 Email: sales@maxoncic.co.uk www.maxoncic.co.uk
Figures above are typical and measured under normal operating conditions. As such they will not form part of any contract. Our policy is one of continuous improvement and we reserve the right to change product specifications without notice.
Weight Physical Dimensions RF Output Power Receiver Sensitivity