Ericsson MRS3000, Руководство по обслуживанию на месте

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Technical Data
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Uppgjord (även faktaansvarig om annan) - Prepared (also subject responsible if other) Nr - No.
KL/ECS/S/MK Magnus Lindahl 1524-ROD 908 120
Dokansv/Godk - Doc respons/Approved Kontr - Checked Datum - Date Rev File
1997-04-29 PA1
Technical Data Line panel LP210
LP210 is a line panel that can be connected used with F800 base radio stations. LP210 consists of one
eurocard CP6272. The LP210 line panel handles all tone encoding and decoding to/from mobile
stations as well as line signalling to and from the control boxes CU200 and CU210. The line panel has
an 8Kbyte EEPROM that contains all system personality parameters except the local shortnumbers.
The EEPROM contains a set of default parameters but it can be coded directly from the control boxes
keyboard/display or a PC connected to the RS232 port of the controlboxes.
The eurocard connector contains all controlsignals for F800 and 2 or 4 wire lines connections.
The eurocard connector also provides 2 external active low inputs and 2 external active low, max
50mA, outputs for alarms etc.
A special version of the LP210 provides an extra input for AF from a second receiver mainly used for
special applications as BFS in Finland.
Supply Voltage Current Consumption
Nom 12 Volt. Max 200 mA.
Max 16 Volt.
Min 10,6 Volt.
Line input Level
Nom -13 dBm to -33 dBm.
Max -4dbm all signals.
FSK- Tone carrier 2344Hz Nom -13dBm to -33 dBm.
FSK- Tone 1453Hz Nom -13dBm to -33 dBm.
Line equalizer max +9 dB at 3000 Hz in 3dB step.
Line gain max +20 dB in 1.25 dB step.
TX Output Level RX Input
To F800 Nom -10 dBm. From F800 Nom -10 dBm.
Distortion <0.5 %.
Hum and Noise <35 dB /Nom Lev.
Line Output level
Nom -13 dBm.
Flat Response 300 Hz
– 3000 Hz -2 dB +1 dB
Distortion <0.5 %.
Hum and Noise <45 dB /Nom Lev.
FSK- Tone carrier 2344Hz Nom -13 dBm to -33 dBm.
FSK- Tone 1453Hz Nom -13 dBm to -33 dBm.
External alarm outputs
2 open collector outputs
Active level max 1 V
Max load 50 mA/30 V
External alarm inputs
2 buffer inputs with 10 k

pull-up to +5 V
Min input voltage 1 V
Type current 1 mA