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Anda Telecom FE1 User Manual

Fiber modem
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FE1 Fiber Modem
Version: V2.1.3
Date: 5.12.2005

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Summary of Contents for Anda Telecom FE1

  • Page 1 FE1 Fiber Modem Version: V2.1.3 Date: 5.12.2005...

  • Page 2: Table Of Contents

    Chapter 1 Introduction ................3 1.1 Description....................3 1.2 Characteristics ................... 3 1.3 Technical Parameters ................. 3 Chapter 2 Operation ................5 2.1 Front Panel ....................5 2.1.1 Indicators................... 5 2.2 Back Panel....................6 2.2.1 Power Supply ..................6 2.2.2 E1 Interface..................7 2.2.2 Optical Port ..................

  • Page 3: Chapter 1 Introduction

    Chapter 1 Introduction 1.1 Description FE1 Fiber Modem is designed based on an ASIC chip. The chip adopts special patent technology of reduced dithering, digital phase locked and distill clock, E1 anti-jamming, etc. The inner software and hardware are all modularity, integrating coding, decoding, message insertion and alarm, and make the circuit simple so as to improve the reliability of the device.
  • Page 4 Output optical power: ＞-12dBm Receiver style : PINFET Receiving sensitivity: ＜-36 dBm BER≤10 Light source : LD Optical connector format: FC (Standard)／SC (Optional, declare when order) / ST (Optional, declare when order) Optical connector: Dual-fiber (Standard) / Single-fiber (Optional, declare when order) Internal clock Line clock Clock mode...

  • Page 5: Chapter 2 Operation

    Chapter 2 Operation 2.1 Front Panel Fig 1. Front panel of FE1 Fiber Modem 2.1.1 Indicators There are seven indicators in the front panel of FE1 Fiber Modem, from right to left: Indicator of power supply Green Bright when power is on...

  • Page 6: Back Panel

    TX/E1LOS and RX/E1LOF maybe bright red and green at the same time, take observation carefully. 2.2 Back Panel Fig 2. Back panel of FE1 Fiber Modem (AC) Fig 3. Back panel of FE1 Fiber Modem (DC) 2.2.1 Power Supply AC socket: AC 220V input.

  • Page 7: E1 Interface

    If the power supply is -48V, connect the device + pole with power GND pole, the device – pole with power -48V: Fig 5. Sketch map of DC-48V connection NOTE: Please check the power polarity carefully, and connect after everything is confirmed.

  • Page 8: Optical Port

    Don’t stare at optical module TX port!!! 2.2.4 Time Slots Settings Time slot settings switch for FE1 Fiber Modem is located at the bottom of the device. On the bottom board of FE1 Fiber Modem, there is a quadrate slot. Under the slot, there are four 8-bit Dips (totally 32 bits) for setting E1 time slots.

  • Page 9: Settings Of Sw

    TS9 is available TS9 is invalid TS10 is available TS10 is invalid TS11 is available TS11 is invalid TS12 is available TS12 is invalid TS13 is available TS13 is invalid TS14 is available TS14 is invalid TS15 is available TS15 is invalid TS16 is available TS16 is invalid TS17 is available...
  • Page 10 Guarantee that there is only one Internal clock device in one chain. Avoid that all device in one chain don’t set as Line clock. But usually FE1 Fiber Modem used as PDH, set it PDH mode. LOOP Setting (SW-4, SW-5, SW-6) BIT4, BIT5, BIT6 of SW (SW-4、...
  • Page 11 Loop the OFF: Work normally SW-6 remote device ON: Loop Table 7. Loop settings SW-4: ANA Loop local data back, defined as Fig 8: Fig 8. Loop local data back SW-5: DIG Loop line back, defined as Fig 9: Fig 9. Loop line back SW-6: REM Loop the remote device.
  • Page 12 LOCAL(Internal clock) REMOTE(Line clock) LOCAL SPECIFICATION SW-4 SW-5 SW-6 SW-7 SW-4 SW-5 SW-6 SW-7 TEST PTOK PATT PATT CRC_ERR Work normally bright bright Loop local data Green bright back Loop line back, the led of test in the Green bright remote device i s blinking Loop remote...

  • Page 13: Chapter 3 Installation

    If the device is used as single E1 PDH, please set it to default settings common PDH clock. Check the power collocation of FE1 Fiber Modem, if it is DC model, please pay attention to the voltage value and polarity, then connect the power supply referring to this manual.
  • Page 14 Please examine the voltage value and whether the polarity is in accord with the mark on the rear panel before electrifying, or else the device may be caused permanent damages. Fiber connector can’t be polluted, and it should be cleaned with alcohol lightly before using.

  • Page 15: Chapter 4 Troubleshooting

    Chapter 4 Troubleshooting Normal working status: when FE1 Fiber Modem works normally, PWR(Green) indicator is bright, TX/E1LOS(Green)、RX/E1LOF(Green) indicators are blinking, the others are off. When the device has failure, firstly make sure the failure range according to the status of the indicators, then deal with the problem.
  • Page 16 Trouble phenomenon: some data has lost during the course of communication Diagnosis: There are two internal clocks or no internal clocks in the whole line, which will lead to some data lost or not through. Exclusion: Make sure that there is only one internal clock and others are line clock in one line.

  • Page 17: Chapter 5 Appendix Table

    Chapter 5 Appendix Table — — User Manual 17-18...
  • Page 18 — — User Manual 18-18...

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