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QUICKLINK
A Line of External Fixed-Port Active Hubs for ARCNET® Local Area Networks
INSTALLATION GUIDE
INTRODUCTION
The QuickLink (QL) Series of external fixed port hubs provides a low cost
method of expanding ARCNET local area networks. These eight-port hubs
provide the ultimate in reliability and flexibility for cabling ARCNET
networks. A hub allows for the addition of a segment and support for
distributed star topologies. The QL utilizes the same robust hub timing
electronics found in the Contemporary Controls (CC) MODHUB series for
modular active hubs. This includes precision delay line timing, digitally
controlled timers for dependable operation and reduced bit jitter. Also, a
watchdog timer is included to prevent hub lockup — eliminating the need
to recycle hub power in the event of extraordinary electrical disturbance.
The QL operates from low-voltage AC, requiring a power voltage source in
the range of 8 to 24 volts.
Active hubs increase the robustness of ARCNET networks. They maximize
the distance that can be achieved on each cable segment ⎯ up to 2000 feet
(610 m) feet on coaxial segments. They prevent interference to the network
by squelching reflections caused by open or shorted cable segments attached
to the hub. Unused hub ports need not be terminated. Active hubs allow for
a distributed star topology, thereby minimizing the cabling required in a
facility. Two or more QL hubs may be cascaded.
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Table of Contents
Summary of Contents for QuickLink QL-CXS
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Page 1: Installation Guide
A Line of External Fixed-Port Active Hubs for ARCNET® Local Area Networks INSTALLATION GUIDE INTRODUCTION The QuickLink (QL) Series of external fixed port hubs provides a low cost method of expanding ARCNET local area networks. These eight-port hubs provide the ultimate in reliability and flexibility for cabling ARCNET networks. -
Page 2: Specifications
SPECIFICATIONS Environmental Operating temperature: 0°C to +60°C Storage temperature: –40°C to +85°C Relative humidity: 10 to 95%, non-condensing Regulatory Compliance CE Mark CFR 47, Part 15 Class A Functional Compliance: ANSI/ATA 878.1 Hub delay: 300 ns max @ 2.5 Mbps 5.9 µs max @ 2.5 Mbps Unlatch delay time: ACTIVITY ⎯... - Page 3 Each transformer comes with a 6-foot cord molded into the transformer. The other end is stripped and tinned and must be secured to the two-position removable connector located on the QL. With power removed from the transformer, attach one wire to one of the terminals and the other wire to the remaining terminal.
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Page 4: Field Connections
FIELD CONNECTIONS The QL is available with two transceiver options. Each transceiver, which is matched to a particular cable type, is identified by a three-character suffix appended to the model numbers. The capabilities of each transceiver differs. The QL is equipped with either the -CXS or -TPS option, however, support for systems with either -CXB or -TPB is possible. - Page 5 -CXB Coaxial Bus For hub-less systems, the -CXB transceiver can be used. NIMs are interconnected with RG-62/u cables and BNC Tee connectors. Each -CXB NIM represents a high-impedance connection in both the powered and unpowered states. Therefore, passive termination must be applied to both ends of a bus segment.
- Page 6 -TPB Twisted-Pair Bus Like the -CXB transceiver, a hub-less cabling segment is possible. The -TPB transceiver allows a total of eight -TPB NIMs to share a common bus segment for up to 400 feet. These types of segments can be expanded using the QL-TPS.
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Page 7: Declaration Of Conformity
Sir William Lyons Road Coventry CV4 7EZ UNITED KINGDOM Type of Equipment: External fixed-port active hub Model Directive QL-CXS QL-TPS QL-CXS-E QL-TPS-E I, the undersigned, hereby declare that the products specified above conform to the listed directives and standards. Manufacturer Full Name George M. - Page 8 NEED MORE HELP INSTALLING THIS PRODUCT? More comprehensive information can be found on our web site at www.ccontrols.com. Browse the Technical Support section of our site for a look at our interactive on-line technical manuals, downloadable software drivers and utility programs that can test the product. When contacting one of our offices, just ask for technical support.