American Fibertek MRX-986-UTP-H User Manual

Eight Channel Video Multiplexer

With One Bi-directional Multi-Protocol

Data Channel and One Bi-directional

Instruction Manual

MTX-986-UTP-H

MRX-986-UTP-H

Contact Channel

Table of Contents

Functional Description ........................................................................3

Installation...........................................................................................4

Power Source / Connection ................................................................4

Fiber Connection .................................................................................4

Video, Data, and Contact Input / Output Connections........................5

Data Mode Switches...........................................................................6

Data Termination / Bias Switches.......................................................6

Data Termination Requirements.........................................................7

Offset Bias - RS485 Data Signals.......................................................7

MTX-986-UTP-H Video Input Adjustments.........................................8

MRX-986-UTP-H Video Output Adjustments......................................8

MTX-986-UTP-H Status LED Indicators .............................................9

MRX-986-UTP-H Status LED Indicators...........................................10

Warranty / Service Information .........................................................12

INSTALLATION AND OPERATION INSTRUCTIONS

INTRODUCTION

Thank you for purchasing your American Fibertek Series 986-UTP-H multimode eight channel video multiplexer with bi-directional multi-protocol data and contact closure. Please take a few minutes to read these installation instructions in order to obtain the maximum performance from this product.

FUNCTIONAL DESCRIPTION

The 986-UTP-H Series units operate as a transmitter / receiver pair for the digital transmission of eight simultaneous NTSC or PAL video signals along with one channel of field configurable bi-directional data and one channel of bi-directional contact closure over one multimode fiber optic cable. The data channel may be configured as RS485 data, RS422 data, RS232 data, or Manchester data. The RS485 channel may be configured for 2-wire (half duplex) or 4-wire (full duplex) with or without biasing. Switch selectable internal 120 ohm terminations are available for RS422 or RS485 data and RS485 biasing.

NOTE: This unit is shipped with Data Channel 1 in the RS422 configuration. For other configurations, please refer to the DATA CONFIGURATION section for changes to the default switch settings.

NOTE: This unit is shipped with data terminations off and data bias off for Data Channel

1. For other configurations, please refer to the DATA TERMINATION / BIAS section for changes to the default switch settings.

The MTX-986-UTP-H transmitter accepts up to eight video inputs and multiplexes these inputs into a high speed serial data stream. This serial data stream, along with the forward data and contact closure channels, modulates a laser at 1310nm wavelength. A Wave Division Multiplexer combines this wavelength, along with the return data wavelength of 1550nm, onto a single optical output port for connection to the fiber transmission system. Correspondingly, the MRX-986-UTP-H receiver converts the optical signal to eight independent video output signals with the forward data and contact closure channels while transmitting the return data and contact closure channels. The 986-UTP-H Series product is designed to operate over an optical loss budget range of 0dB to 12dB on 62.5um multimode fiber with a maximum transmission distance of 1 Km. Refer to the product specification sheet for additional performance data.

The 986-UTP-H Series units are designed to be used with Honeywell model HVB8U VideoBlox chassis interlink modules. Interface connections between the 986-UTP-H Series unit and the Honeywell module are made via UTP connectors. Output video levels can be increased as necessary to properly match this unit with the Honeywell module.

The individual units may be configured for rack mounting or wall mounting depending upon the position of the included mounting hardware. Nominal dimensions of the MTX-986-UTP-H and MRX-986-UTP-H are 1 ¾ inches high by 17 inches wide by 12 inches deep. When mounting hardware is included, overall width increases to 19 inches wide.

INSTALLATION

THIS INSTALLATION SHOULD BE MADE BY A QUALIFIED SERVICE PERSON AND SHOULD CONFORM TO THE NATIONAL ELECTRICAL CODE, ANSI/NFPA 70 AND LOCAL CODES.

To install the MTX-986-UTP-H or MRX-986-UTP-H it is first necessary to mount the rack flanges to the unit.

For rack mounting the ears are installed on the sides of the unit with the surfaces that have oval holes flush with the front of the unit as in Figure 1. Mount the ears with the #10 flathead screws provided. To mount in the rack cabinet, use mounting screws that are appropriate for the rack cabinet being used. When mounting the MTX-986-UTP-H or MRX-986-UTP-H in a rack configuration, it is recommended that sufficient airflow is available through the unit. This can be achieved by leaving a 1RU slot above the unit open for air movement and by leaving open space along the sides of the unit.

For mounting the unit flush to a wall or other rigid surface, the ears may be installed on the sides with the oval holes flush with the bottom of the unit as in Figure 2. Mount the ears with the #10 flathead screws provided. Mount the unit to a rigid surface using #10 (5mm) screws.

POWER SOURCE

The internal power supply accepts universal line voltage. Any mains supply from 100 to 240 VAC, 50 to 60 Hz, may be used without modification or adjustment. A universal power connector is provided on the rear of the unit to facilitate connection to the power mains.

POWER CONNECTION

The unit is supplied (in the US and UK only) with a three conductor power cord. The “ground” conductor is directly connected to the chassis.

FIBER CONNECTION

The fiber optic connection is made via a ST connector located at the back of the unit. Be sure to allow sufficient room for the required minimum bend radius of the fiber cable used.

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