Installation Manual

ManualsBrandsComnet ManualsElectronicsUniversal Data Self Healing Ring

INS_FDX72SHR_REV–

02/29/12

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INSTALLATION AND OPERATION MANUAL

FDX72(M,S)1SHR

MULTI-PROTOCOL RS232/422/485 DATA TRANSCEIVER

FEATURING SELF-HEALING RING OPERATION

The ComNet™ FDX72(M,S)1SHR series Self-Healing Ring Transceiver unit is

a fully-digital transceiver designed for implementing full RS232, RS422 or

RS485 2 or 4-wire traffic signalization/communications data networks of the

highest possible reliability. A network of FDX72SHR units can support one full-

duplex data channel or two half-duplex data channels. Full data re-clocking and

regeneration permit an almost unlimited number of transceiver/controller units

to be used within the network. These environmentally hardened transceivers are

ideal for use in unconditioned out-of-plant or roadside installations.

Utilizing wave division multiplexing technology (WDM), only one optical fiber is

required between units to implement a fully self-healing ring. Two FDX72SHR

units can be used in a redundant point-to-point topology.

Bi-color (Red/Green) LED indicators are provided for rapidly ascertaining

equipment operating status including the location of fiber breaks. See Figure 7

on Page 5 for an explanation of LED indications.

These units are interchangeable between stand-alone or card-cage mount

configurations. See Figure A on Page 7 for mounting instructions.

See Figures 1 – 8 for complete installation details.

Summary of content (7 pages)

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INSTALLATION AND OPERATION MANUAL FDX72(M,S)1SHR multi-protocol RS232/422/485 data transceiver featuring self-healing ring operation The ComNet™ FDX72(M,S)1SHR series Self-Healing Ring Transceiver unit is a fully-digital transceiver designed for implementing full RS232, RS422 or RS485 2 or 4-wire traffic signalization/communications data networks of the highest possible reliability. A network of FDX72SHR units can support one fullduplex data channel or two half-duplex data channels.
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INSTALLATION AND OPERATION MANUAL FDX72(M,S)1SHR FIGURE 1 – FDX72SHR FIBER CONNECTIONS MULTIMODE OR SINGLE MODE OPTICAL FIBER (DEPENDING ON MODEL) Optical Port A must be connected to Optical Port B on another FDX72SHR unit. Similarly, Optical Port B must be connected to Optical Port A on another FDX72SHR unit. See Figure 8 on Page 6.
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INSTALLATION AND OPERATION MANUAL FDX72(M,S)1SHR FIGURE 3 – DATA FORMAT SWITCH POSITIONS } RS232 Data 1 2 3 RS422, Bi-Phase or Manchester Data 1 2 3 RS485 2-Wire, Sensornet Data 2 3 1 RS485 4-Wire Data 2 3 1 Switch Lower bank of switches located on front panel. The first two switches set the data type, the third sets the Master/Remote Mode.
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INSTALLATION AND OPERATION MANUAL FDX72(M,S)1SHR FIGURE 4 – RING LENGTH SWITCH POSITIONS } Switch Position Switch Upper bank of switches located on front panel. For most applications, the Ring Length Switch can be left at default setting. For high data rate applications (>250Kbps) ring length should be set to minimize turn-around time.
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INSTALLATION AND OPERATION MANUAL FDX72(M,S)1SHR FIGURE 6 – 7-PIN DATA CONNECTOR BIAS Current limited +5V connection. This terminal can be used as a connection for pull-up resistors, if required. ALARM Alarm relay output. Indicates fault conditions. The relay is internally connected to the GND terminal when no faults are detected (i.e. a normally closed relay). The relay circuit opens when a fault is detected anywhere in the system. GND: Signal ground reference.
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INSTALLATION AND OPERATION MANUAL FDX72(M,S)1SHR FIGURE 8 – FAULT CONDITIONS A fault condition is when a FDX72SHR unit system loses power or optical link. The FDX72SHR provides three indicators to help identify when and where fault conditions occur in a system: 1. ALARM relay output 2. STATUS LED 3. LINK A and LINK B LEDs When a fault occurs, the ALARM relay on every FDX72SHR in the system goes from closed to open.
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MECHANICAL INSTALLATION INSTRUCTIONS Installation Considerations This fiber-optic link is supplied as a Standalone/Rack module. Units should be installed in dry locations protected from extremes of temperature and humidity. Figure A Dimensions are for a standard ComNet™ one slot module .156 [3.