Nokia EKSOS Line Measurement Unit » History » Version 6
laforge, 01/15/2023 05:09 PM
| 1 | 1 | laforge | h1. Nokia EKSOS Line Measurement Unit (T35140.01) |
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| 3 | 6 | laforge | The optional Line Measurement Unit (LMU) makes it possible to remotely test the condition of copper access lines in a [[Nokia_EKSOS]] access multiplexer. It operates in conjunction with the test access relays in the interface units. Also, additional alarm inputs and outputs are available through the LMU. |
| 4 | 4 | laforge | |
| 5 | The LMU supports the following features: |
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| 6 | * scheduled tests |
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| 7 | * line tests for PSTN and ISDN |
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| 8 | * high-accuracy measurement of line parameters such as capacitance, foreign voltage and leakage resistance |
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| 9 | * external test access (for testing the lines using external test equipment) |
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| 10 | * cable-pair identification-tone test for all line types |
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| 11 | * dry loop test |
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| 12 | * external alarm inputs (digital and analog) and outputs (digital). |
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| 14 | 5 | laforge | h2. Photos |
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| 16 | {{thumbnail(eksos_lmu_top.jpg)}} |
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| 17 | {{thumbnail(eksos_lmu_bot.jpg)}} |
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| 19 | 1 | laforge | h2. Connectors |
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| 21 | |_.Name|_.Designator|_.Type|_.Description| |
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| 22 | |AUX|J8|RJ45|| |
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| 23 | |ALRM|J9|RJ45|| |
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| 24 | |EXT|J10|RJ45|| |
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| 25 | |||
| 26 | h2. Main Circuits |
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| 27 | |||
| 28 | h3. Main Processor |
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| 29 | |||
| 30 | 2 | laforge | * MC68MH360AI25VL QUICC32 CPU / Controller |
| 31 | ** User Manual: attachment:MC68360UM.pdf |
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| 32 | ** Tutorial: attachment:MC68360TUT.pdf |
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| 33 | ** QMC Supplement: attachment:MC68MH360UM.pdf |
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| 34 | 3 | laforge | ** Errata: attachment:MC68360UMAD.pdf |
| 35 | 2 | laforge | * 6x SHARP LH28F160S3HNS-S5 16Mbit Flash |
| 36 | ** Data sheet: attachment:LH28F160S3HNS.pdf |
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| 37 | * 4x Samsung K4F151612D-TC60 1Mx16bit CMOS DRAM |
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| 38 | ** Data sheet: attachment:K4F151612D.pdf |
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| 39 | 1 | laforge | |
| 40 | h3. Backplane interface |
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| 41 | |||
| 42 | h3. DSP / ADC / DAC |
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| 43 | |||
| 44 | * TI TMS320LC548PGE-66 fixed-point DSP |
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| 45 | ** Data sheet: attachment:TMS320LC548.pdf |
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| 46 | * 2x ADI ADG408BR 8:1 Analog Multiplexer |
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| 47 | ** Data sheet: attachment:ADG408.pdf |
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| 48 | * 2x ADI AD822 rail-to-rail op-amp |
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| 49 | ** Data sheet: attachment:AD822.pdf |
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| 50 | * 2x Infineon PEB4065T V4.0 HV-SLIC |
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| 51 | ** High Voltage Subscriber Line IC |
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| 52 | * 1x AD7863AR-10 quad-input dual 175kSPS 14-bit SAR ADC |
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| 53 | ** Data sheet: attachment:AD7863.pdf |
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| 54 | * 1x AD8801 octal 8-bit TrimDAC |
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| 55 | ** Data sheet: attachment:AD8801.pdf |
