London Electronics ASR-GPS Connection Details And General Information Download Page 7

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Internal Switches

You will neet to open the case to access the terminals and configuration switches.

Remove the 4 corner screws, and lift off the lid, to reveal the circuit board.

Board layout subject to change without notice.

IMPORTANT:

You must unplug the power / signal connector before you change switch
positions.

Factory
Programming
Port

Spare ports

Do not use

Data Choice

RS485 line settings

RS232
RS232
RS485
RS485

RS232 RS485

Short to bias RS485 B- Low
Short to bias RS485 A+ High
Short for 150R terminator

Summary of Contents for ASR-GPS

Page 1: ...ck module ASR GPS Connection details and general information GPS derived atomic time reference with precision backup timer London Electronics Limited Thorncote Road Near Sandy Bedfordshire SG19 1PU Te...

Page 2: ...2 notes...

Page 3: ...Index Connections page 10 Data output page 11 Declaration of Conformity page 16 Description page 6 Dimensions page 8 Mounting page 9 Revision record page 13 Specifications page 12 Switches page 7 War...

Page 4: ...nt replacement Or we may have no stock at the time you urgently need it You may also need to pay extra carriage charges if you want a fast guaranteed courier service Warranty repairs or replacements a...

Page 5: ...s equipment must have anti surge T fuses rated at 315mA for DC supplies in the range 10 24 VDC Check that the model number and supply voltage suit your application before you install the equipment Don...

Page 6: ...precision reference oscillator is used for the timing with a typical accuracy of 3 seconds per month This is re corrected whenever the module is in sight of 3 or more GPS satellites which send it hig...

Page 7: ...ircuit board Board layout subject to change without notice IMPORTANT You must unplug the power signal connector before you change switch positions Factory Programming Port Spare ports Do not use Data...

Page 8: ...ht 65 0 mm Cable gland height 20 0 mm Typical weight 175 grams Operating conditions 0 to 50 degrees C Storage conditions 20 to 70 degrees C Case sealing IP65 Case Material PolyCARBONATE Cable dimensio...

Page 9: ...s away from the device it will connect to Ideally mount the receiver outside or near a window with the label facing up towards the sky 25mm dia neoprene friction washer Swivel bracket M8 Flat Washer M...

Page 10: ...the Data A and Data B link Use a pair of twisted wires together for Power In Reduces voltage drop Use a pair of twisted wires together for Power In Reduces voltage drop See below Some typical connecti...

Page 11: ...e live data or RealTimeClock internal reference DST is Daylight Saving flag 1 character 0 or 1 1 indicates daylight saving correction has been applied TZ is time zone adjustment applied 5 characters 1...

Page 12: ...orrection Time Zone setting Set with PC configuration application Case width 15 0 mm Case forward projection 40 0 mm Case height 65 0 mm Cable gland height 20 0 mm Typical weight 175 grams Operating c...

Page 13: ...13 Revisions Rev 0 Released 29 August 2007...

Page 14: ...14 Notes...

Page 15: ...15 Notes...

Page 16: ...n behalf of London Electronics Ltd WedesignedandmanufacturedthisProduct tomeetthefollowingspecifications EN55022 1987 Conducted Emissions Class B EN55022 1987 Radiated Emissions Class B IEC801 2 1984...