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RLH Industries T1 User Manual

4 wire fiber link card system
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4 Wire T1
Fiber Link Card System
User Guide
U-001 2019A-0816

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  • Page 1 4 Wire T1 Fiber Link Card System User Guide U-001 2019A-0816...
  • Page 2 RLH Industries, Inc.
 Copyright © 2019 RLH Industries, Inc. All rights reserved.
 No part of this document may be copied or distributed without permission. The RLH logo may not be used for commercial purposes without the prior written consent of RLH and may constitute trademark infringement.

  • Page 3: Table Of Contents

    Connect CO fiber cables Connect Sub card Connect loopback jumpers and power Verify Sub card operation Connect customer premises equipment Installation prior to T1 service availability Set up CO card Verify CO card operation Connect CO fiber cables Connect Sub card...
  • Page 4 Contents Troubleshooting Common Issues CO side troubleshooting Sub Side troubleshooting Power supply issues Verifying fiber cable Connecting T1 service after installation NIU Compatibility Ordering Information 4 Wire T1 Cards RJ-48C Adapters Specifications General Specifications Support Technical Support Contact Information Contents...

  • Page 5: Important Information

    Never install during a lightning storm or where unsafe high voltages are present. • Active T1 lines carry high DC voltages up to 56V. Use caution when handling T1 wiring. • Active UHDSL lines carry high DC voltages up to 210V. Use caution when handling UHDSL wiring.

  • Page 6: Description And Application

    The Fiber Link T1 Model 2 (backwards compatible with the Model 1) System processes incoming bipolar signals (7.2 V P-P Max) within a bandwidth of 100 KHz to 10 MHz T1 (1.544MbpS) or (CCITT 2.048MbpS), optically transmits these signals over fiber optic cable and converts the signal to the original electrical signal with minimal gain or loss.

  • Page 7: Led Status Indicators

    LED status indicators 24-56VDC OUTPUT INPUT AUX. P.S. FIBR ALARM XMIT LIMIT PWR YEL - FIBER BLU - PWR RED - ALARM ORG - LIMIT GRN - RCV GRN - XMIT Color ON condition OFF condition • Normal operation
 • “Fiber signal” switch SW2 is ON at 
 (“Fiber Signal”...

  • Page 8: Before Installing

    • This product contains static sensitive components. • Handle the T1 cards at their edges only. • Follow proper electrostatic discharge procedures. This card utilizes circuitry that can be damaged by static electricity. When transporting the card, carry it in an ESD safe container such as the antistatic bag provided with the card.

  • Page 9: Set Up For Installation

    Store together in bag at site Fiber Coupler RJ Jumper Copper Jumper Fiber Jumper Refer to the Ordering Information section for part numbers. Verify matching connector types on fiber cable and T1 cards Connectors Connectors Fiber Optic Fiber Optic Link Card...
  • Page 10 Color Identifier T-1 Fiber Optic Link Card Single Mode Yellow 9/125 Multimode Orange 62.5/125 Set default T1 card settings Settings are the same for both CO and Sub cards. LOSS SELECT FIBER SIGNAL (Red) FIBER LOSS <4dB> (Red) Position 1...

  • Page 11: Installing Card Housing

    Required test equipment You will need a T1 analyzer such as a T-BERD and a multimeter Be familiar with the test settings. Some analyzers have line power and multimeter capability. For installation where no T-1 signal is available, the analyzer must be capable of generating a quasi-random T-1 signal.

  • Page 12: Copper Wiring Requirements

    Fuses must be installed within a finger safe housing to prevent electric shock from accidental contact or during fuse replacement. Copper wiring requirements Copper wiring to the T1 cards The connectors on the T-1 cards are designed for specific wire sizes and mechanical connections at the terminals. •...

  • Page 13: Verify Your Installation Environment

    Verify your installation environment Typical T1 application environments Fiber optic cable needs to be installed at the location prior to connecting T1 Fiber Link Card system. 4-Wire 4-Wire HDSL/T1 Span Copper T1 Copper T1 Fiber Optic CO Card Sub Card...

  • Page 14: Connect Co Card

    Also see Installation prior to T1 service availability on page 23. Connect CO card Verify acceptable T1 signal Repair the T1 lines if service is not acceptable. Check for NIU Compatibility in the Troubleshooting section. Central Office Test Analyzer PEAK TO PEAK VOLTAGE 0.19V ~ 9.0V...
  • Page 15 Blue Orange Black Green Brown Gray Blue Gently tug after securing Orange into terminal to ensure Green Yellow wire isn’t damaged. Brown Slate Blue Orange Violet Green T1 wires Brown Gray 
 Installation Installing when T1 service is present...
  • Page 16 Pin 8 Pin 1 Use jack marked CO Optional RJ-45 jack RX pair, pins 1,2 TX pair, pins 4, 5 Verify power at the T1 card Test for Span power. 60mA span power Multimeter 22V minimum BLU = ON 24-56VDC...
  • Page 17 Refer to the power supply connection and use information for fuse or circuit breaker requirements. Use caution when handling copper wiring. Power connections may carry high voltages. Fuses must be installed within a finger safe housing to prevent electric shock from accidental contact or during fuse replacement. Installation Installing when T1 service is present...

  • Page 18: Set Co Card Gain

    Set CO card gain Set gain using red gain GAIN jumper Set gain while T1 signal is present. Refer to the Specifications section for input signal requirements. The blue LOSS SELECT jumper must remain at position 1. GRN LED is ON when copper...

  • Page 19: Verify Co Card Operation

    If both GREEN LEDs are not ON, • Do not discard fiber caps. verify T1 signal, power and connections • Replace caps after use. Connect CO fiber cables Connect fiber optic cable Move on to Sub side after verifying LEDs.

  • Page 20: Connect Sub Card

    RX fiber Fiber Optic Cable signal performance. from CO side from CO side Connect loopback jumpers and power Connect copper loopback jumpers When using wire terminals. 
 Installing when T1 service is present Installation...
  • Page 21 fiber optic transceiver system operates within normal levels. This will enable the Sub card to compensate for the optics system gain previously set on the CO card. Installation Installing when T1 service is present...

  • Page 22: Verify Sub Card Operation

    24-56VDC Local Power solid copper wire only. Not polarity sensitive Verify Sub card operation Verify subscriber card operation Status LEDs are the same when using either copper loopback jumpers or optional RJ jumper. Installing when T1 service is present Installation...

  • Page 23: Connect Customer Premises Equipment

    AUX. P.S. FIBR ALARM XMIT LIMIT PWR into terminal to ensure wire isn’t damaged. Connect Connect TX pair RX pair T1 wires Flip connections for Subscriber side Use 22~24AWG solid copper wire only. Installation Installing when T1 service is present...
  • Page 24 Optional RJ-45 jack RJ connector Subscriber side RJ connection Position 4, 5 Position 1, 2 uses straight (not crossover) wiring TX pair RX pair Close Sub side housing Store excess fiber cable. Installation is complete.
 Installing when T1 service is present Installation...

  • Page 25: Installation Prior To T1 Service Availability

    Installation prior to
 T1 service availability Also see Installation when T1 service is available on page 13 Set up CO card Connect T1 signal to CO card If Span power is provided by the analyzer, all LEDs will be ON for approximately 5 seconds after signal and power are first applied.
  • Page 26 Position 1, 2 TX pair RX pair Connect Power to CO card With the T1 signal applied, attach the 24-56VDC portable power source. All LEDs will be ON for approximately 5 seconds after power is first applied. Multimeter 24-56VDC RED ALARM...

  • Page 27: Verify Co Card Operation

    T1 signal, power and connections Connect CO fiber cables Connect CO side fiber optic cable Remove test kit fiber jumper from CO card and connect fiber cable. T1 analyzer and power source remain connected. Proceed to Sub side. 24-56VDC...

  • Page 28: Connect Sub Card

    RX fiber Fiber Optic Cable signal performance. from CO side from CO side Connect loopback jumpers and power Connect copper loopback jumpers When using wire terminals. 
 Installing prior to T1 service availability Installation...
  • Page 29 Refer to the power supply connection and use information for fuse or circuit breaker requirements. Use caution when handling copper wiring. Power connections may carry high voltages. Fuses must be installed within a finger safe housing to prevent electric shock from accidental contact or during fuse replacement. Installation Installing prior to T1 service availability...

  • Page 30: Verify Sub Card Operation

    Status LEDs are the same when using either copper loopback jumpers or optional RJ jumper. Finish installation Disconnect jumper, power, and T1 analyzer. Push cards into housings and close cover at both CO and Sub side. Leave fiber cables connected and properly store excess fiber.

  • Page 31: Troubleshooting

    Problems with the fiber optic cable RLH T1 cards are built to the highest standards and fully tested before leaving the factory. Isolating and ruling out common issues with the installation will help determine if there is a problem with the card itself.

  • Page 32: Co Side Troubleshooting

    If the P-P voltage is out of range you may not be able to set the gain correctly for the CO card to function normally. This can result in an output level on the Sub side card that is either too weak or too hot. If the Incoming T1 P-P voltage is too high on the incoming side, it may need to be attenuated before setting the CO card gain.

  • Page 33: Power Supply Issues

    Check the NIU compatibly chart for NIU systems providing span power. • If Span power is too low or not provided, repair the T1 line or use an auxiliary power source. • Check wiring for nicking, scoring or poor termination.

  • Page 34: Verifying Fiber Cable

    Refer to Installing into working environment step 5.5, or Installing prior to T1 service step 5.4 for information on the CO fiber loopback test. Use the accessory test kit coupler to verify fiber cable continuity. The CO card must be powered and connected to a T1 signal.
  • Page 35 When T1 signal is not present The T1 cards have a fiber signal test system built-in. You can verify the fiber cable when there is no T1 signal present. Both the the CO and Sub cards need to be powered (a battery may be used) and the fiber cables need to be connected correctly to the cards.

  • Page 36: Connecting T1 Service After Installation

    Connecting T1 service after installation When connecting T1 Service AFTER the Fiber Link has been pre-installed, make sure to check the following. • Verify span or auxiliary power to the CO card at the card terminals (page 15) • Set the gain using the GAIN jumper on the CO card (page 16) •...

  • Page 37: Ordering Information

    Ordering Information 4 Wire T1 Cards Each 4 Wire T1 Fiber Link Card is identified with the part number on the card. Optics Distance Fiber Description Part Number CLEI 8806-1315-02 CO Card NPIFEJ01AA Multimode ST 2.5km / 1.5 mi. 62.5µm...

  • Page 38: Specifications

    Specifications General Specifications Transmission method Amplitude modulated light via two optical fibers Multimode: 850nm (Tx level: -16dB +/- 1dB) Single-mode: 1310nm (Tx level: -23dB +/- 1dB) Single-mode Long Haul: 1310nm (Tx level: -8dB +/- 2dB) Maximum Fiber Attenuation / Multimode: 10dB / 1.5 miles (2.5 km) Distance* Single-mode: 8dB / 9 miles (15 km) Single-mode Long Haul: 26dB / 37 mi.

  • Page 39: Support

    Technical Support Email: support@fiberopticlink.com 24/7 technical support: Toll Free 1-855-RLH-24X7 Toll Free 1-855-754-2497 Contact Information Corporate Headquarters: RLH Industries, Inc. 936 N. Main Street Orange, CA 92867 USA Phone: (714) 532-1672 Toll Free 1-800-877-1672 Toll Free 1-866-DO-FIBER
 Fax: (714) 532-1885 Email: info@fiberopticlink.com...

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