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! RLH Industries, Inc. • Tel. 866-DO-FIBER • Fax 714 532-1885 • www.ﬁberopticlink.com! Page 1

RLH Single Channel T1

Fiber Link Card System

Description

The Single Channel T1 Fiber Link Card converts electrical/copper

T1(DS1) signals and transport them over optical fiber. The system

can operate from T1 span power (60mA) or local 24/48VDC

power. It has LED status and alarm output indicators for system

monitoring, and is temperature hardened for use in extreme

conditions.

All of the products in the RLH T1 Fiber Link family are designed

for the utmost quality and reliability. Typical applications include

high voltage GPR isolation, utility, wireless backhaul, and military

communications. RLH single channel T1 systems are made in the

USA and are covered by our Unconditional Lifetime Warranty.

Key Features

• Single-mode (up to 60km/37mi.) or Multimode (2km/1.2mi.) ﬁber

systems with either ST or SC ﬁber connector types.

• Dual power capable, line or local 24/48VDC.

• Simplex 60mA line powering from the T1 span

or HDSL NIU/RT unit.

• Environmentally hardened to operate in -40°F to +158°F

(-40°C to +70°C) environments.

• Compatible with 2 Channel DIN/Card and the Single Channel

DIN modules.

• The same unit may be used at either end of the ﬁber system, sim-

plifying spares and ordering.

• Loopback testing features.

• B8ZS or AMI compatible.

• NC/NO alarm contact for remote monitoring of system health.

• DIN rail or wall mountable compact modules are available.

• Can be used within or beyond customer premise environments.

•

Covered by our Unconditional Lifetime Warranty.

•

Made in the USA

U-066 2014A-0205

Compliance Information

The RLH Single Channel T1 Fiber Link Card System is

compliant with the following industry standards:

• FCC PART-15

• FCC PART-68B

• GR-1089

• IEEE-487

• IEEE-1590

• Motorola R56

Contents

____________Description and Key Features ! 1

_________________General Safety Practices ! 2

__________________________Application! 3

__________________________Installation ! 5

_________________________Connections ! 8

____________________Powering the System! 8

________________________Switch Settings! 9

_______________________LED Indicators! 10

____________________NIU Compatibility ! 12

________________________Speciﬁcations! 13

_________________Ordering Information ! 14

____________________Technical Support ! 15

__________________________Warranty ! 15

The leader in

rugged fiber optic

technology.



Unconditional

Lifetime Warranty

USER GUIDE

RLH Industries, Inc.

RLH Single Channel T1 Fiber Link Card

Summary of content (16 pages)

PAGE 1
The leader in rugged fiber optic technology. RLH Industries, Inc.  Unconditional Lifetime Warranty USER GUIDE U-066 2014A-0205 RLH Single Channel T1 Fiber Link Card System Description The Single Channel T1 Fiber Link Card converts electrical/copper T1(DS1) signals and transport them over optical fiber. The system can operate from T1 span power (60mA) or local 24/48VDC power. It has LED status and alarm output indicators for system monitoring, and is temperature hardened for use in extreme conditions.
PAGE 2
General safety practices The equipment discussed in this document may require tools designed for the purpose being described. RLH recommends that service personnel be familiar with the correct handling and use of any installation equipment used, and follow all safety precautions including the use of protective personal equipment as required. Caution - Severe Shock Hazard • Never install during a lightning storm or where unsafe high voltages are present.
PAGE 3
Application The RLH Single Channel T1 Fiber Link Card system transports the copper T1 line at 1.544Mbps, and optically transmits over fiber optic cable to the module at the opposite end, which then converts the optical signals back into the original copper T1 line. Below are sample system diagrams illustrating typical T1 connections to and from the system.
PAGE 4
Front Panel Fiber Optic Connectors Fiber Optic Receive Frame Valid & Frame Alarm Indicator Remote Channel Alarm Indicator Receive BPV (Bipolar Violation) detection DS1 signal detection and Receive AIS (Alarm Indication Signal) detection Power Indicator T1 Line Connector Alarm Connection Terminal Local Power Connection Terminal Single Channel T1 Fiber Link Card Front Panel Layout RLH Industries, Inc. • Tel. 866-DO-FIBER • Fax 714 532-1885 • www.fiberopticlink.
PAGE 5
Installation Prior to installation: • • • • Check for shipping damage Check the contents to ensure correct model and fiber type Have a clean, dry installation environment ready Ensure that the fiber type at the site matches the system type If damage is discovered file a claim immediately with the carrier, then contact RLH customer service. Required for installation: • • • • 24-56VDC (60mA@24VDC maximum) line or local power source at each side of the system.
PAGE 6
Line Powering The Single Channel T1 card can be line powered via 60mA simplex current on the T1 line. When an HDSL or T1 NIU is placed at the CO side of the Fiber Link it must provide span-through line power to the T1 fiber interface card. When line power is available, no external or local power is required to operate the fiber card. An active T1 line with 60mA line power connected to the fiber interface card should typically measure 22-30VDC between transmit and receive pairs.
PAGE 7
Note card orientation in housing during installation Handle card by edges. Install in slot 1 or next available card slot. Install card into housing before connecting fiber or copper wiring. Copper wiring requirements Copper wiring to the T1 cards The connectors on the T1 cards are designed for specific wire sizes and mechanical connections at the terminals. • • • Use 22~24AWG solid copper wire Stripping length: 8mm Connector tightening torque: 0.5~0.6 Nm.
PAGE 8
Connections Connect Fiber Optic Cable The T1 cards are equipped with two optical connectors. Connect the fiber to the Transmit and Receive fiber connectors. The transmit port is marked TX, and the receiver port is marked RX. Verify that the TX fiber at one card is connected to the RX port on the opposite end. The system will not operate if TX is connected to TX or RX to RX. Fiber cables should be routed loosely avoiding tight bends to prevent excessive optical loss.
PAGE 9
T1 Surge Protection Thermistors, and Sidactors limit transients appearing between the Tip and Ring of each pair. Transients appearing at the power terminals or between input and output pairs are limited by PTC thermistors and a metal oxide varistor. T1 Alarm Contact The Single Channel T1 System alarm contact allows you to monitor the health of your T1 Fiber Link system.
PAGE 10
Local Loopback The local (LLOOP) loopback DIP switch is provided to allow for local loop back of the fiber T1 line for troubleshooting purposes. The loop back function begins with the T1 fiber transmit data coming from the remote side module, through the fiber cable to the local receiver, then back out from the local fiber transmitter to the remote side. Normal operating position is OFF for All switch positions. Signal Loop • Turn on LLOOP switch to have fiber loop back or to check for fiber connection.
PAGE 11
Power Indicator The PWR (green) LED will be ON when acceptable power is detected at the card. Span power or a local power source can provide enough power for the system. When the power LED is off, the system is not detecting enough power to operate. T1 Activity The ACTIVE (green) LED will be ON when a valid DS1 signal is detected at the RJ connector. Alarm Indication Signal The AIS alarm (red) LED will be ON whenever a series of unframed all-ones are received at the input of the T1 LIU.
PAGE 12
NIU Compatibility Check for compatible NIU systems that supply Span Through-Power to the Single Channel T1 Fiber Link cards. Contact RLH for T1 compatibility with systems not listed.
PAGE 13
General Specifications Transmission method Amplitude modulated light via two optical fibers Maximum Fiber Attenuation / Distance Multimode: 850nm (Tx level: -16dB ± 1dB) Single-mode: 1310nm (Tx level: -23dB ± 1dB) Single-mode Long Haul: 1310nm (Tx level: -8dB ± 2dB) Multimode: 10dB / 1.2 miles (2 km) Single-mode: 8dB / 9 miles (15 km) Single-mode Long Haul: 26dB* / 37 mi. (60 km), *min.
PAGE 14
Dimensions 1.24 in. (31mm) 3.93 in. (100mm) 6.94 in. (176mm) Ordering Information Single Channel T1 Fiber Link Card System Part Number Description Distance Fiber Part Number Multimode ST Single Channel T1 (CO/SUB) 2km/ 1.2 mi 62.5/50µm 1T4-02-1 Multimode SC Single Channel T1 (CO/SUB) 2km/ 1.2 mi 62.
PAGE 15
Warranty RLH is recognized throughout the U.S. and offers the only UNCONDITIONAL LIFETIME WARRANTY in the telecommunications industry. We are very proud of our warranty which simply states that our transmission products are guaranteed to be free of defects in material and workmanship for the LIFE OF THE PRODUCT. Look for the warranty badge. We can offer this warranty because: • We believe our customers shouldn't have to incur additional costs due to failure or damage.
PAGE 16
RLH Industries, Inc. 6/$0/%*5*0/"- -*'&5*.& 8"33"/5: RLH INDUSTRIES, INC. FIBER OPTIC LINK products are warranted to be free of defects in materials and workmanship for the LIFE OF THE PRODUCT. This lifetime warranty is effective for RLH fiber optic link products sold since the date RLH was founded, February 2, 1988, with the exception of fiber cable products which are warranted to free of defects in manufacturing, and batteries which carry a 10-year unconditional replacement warranty. RLH Industries, Inc.