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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.
INS_FDX72SHR_REV–
02/29/12
PAGE 1
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Summary of Contents for Comnet FDX721SHR
- Page 1 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.
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Page 2: Front Panel
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. - Page 3 INSTALLATION AND OPERATION MANUAL FDX72(M,S)1SHR FIGURE 3 – DATA FORMAT SWITCH POSITIONS RS422, Bi-Phase or RS232 Data Manchester Data Switch Lower bank of switches located on front panel. The first two switches set the data type, the third sets the RS485 2-Wire, Sensornet RS485 Master/Remote Mode.
- Page 4 INSTALLATION AND OPERATION MANUAL FDX72(M,S)1SHR FIGURE 4 – RING LENGTH SWITCH POSITIONS Switch Position Switch Resulting Max Ring Length Upper bank of switches located 100 km (default) on front panel. 75 km 50 km 20 km For most applications, the Ring Length Switch can be left at 10 km default setting.
- Page 5 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.
- Page 6 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.
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Page 7: Installation Considerations
8 TURNbERRy PARk ROAD | GILDERSOME | MORLEy | LEEDS, Uk LS27 7LE T: +44 (0)113 307 6400 | F: +44 (0)113 253 7462 | INFO-EUROPE@cOMNET.NET INS_FDX72SHR_REV– 02/29/12 © 2012 communications Networks corporation. All Rights Reserved. “comNet” and the “comNet logo” are registered trademarks of communication Networks, llc. PAGE 7...
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