Contemporary-control-systems EXP Expansion Modules User Manual Manual do Utilizador

MOD HUB SeriesA Line of Modular Active Hubs for ARCNET® Local Area Networks User Manual #TD401600-0MO®

2 Installation2.1 Introduction The MOD HUB can be either desktop mounted, panel mounted or rack mounted. One model, the MODHUB-16F-N has its own NEM

The MOD HUB has been tested to EN55024 Generic Immunity Standard–Industrial Environment. This standard identifies a series of tests requiring the equi

careful that the complete rack does not become unstable due to the increased mechanical load. The height of the MTG-RAK exceeds the height of the MOD

RG-59/u cable. We recommend RG-62/u because it is a better match to the transceivers and a full 2000 foot segment distance can be achieved using this

left-most side of the other connector. This is a straight-through cable which is used exclusively to connect -TPS ports. If the cable color on the lef

Fiber optic connections require a duplex cable arrangement. Two unidirectional cable paths provide the duplex link. There are two devices at each por

to the RJ-11 connector on the expansion module. With the middlejumper inserted at location E1 on the daughterboard, 120 ohms ofresistance is applied a

Figure 2-1. EIA-485 Daughterboards For EIA-485 DC operation, it is very important that all devices on the wiring segment be referenced to the same gro

+5V+5VVcmRbRbRbRbRtRtTXENP1P2RXINTXENP1P2RXINFigure 2-2. Each -485 hub port has provisions for applying bias and termination. Make sure common mode vo

AC coupling due to the transformer coupling which has a 1000 Vdc breakdown rating. There are disadvantages to the AC-coupled transceiver as compared t

Trademarks Contemporary Controls, ARC Control, ARC DETECT and EXTEND-A-BUS are trademarks or registered trademarks of Contemporary Control Systems, In

WIRING CHART RJ-11 CONNECTOR PIN -TPS -485 -485X 12 3 4 56 – N/C +SIG –SIG N/C – – N/C –SIG +SIG N/C – –N/CSIGSIGN/C– 2.6 Turning

2.7 Ensuring Proper HUB Operation Check each port's line activity indicator. All indicators on the front panel of the active hub should light up

–PWR This LED should also be lit when the MOD HUB is powered. This LED monitors the internal negative DC power to ensure that it is operating within

signals to other ports on the MOD HUB. If this indicator does not light when activity is present on any hub port, as it should, then the timing module

from the MOD HUB will extinguish the RECON indicator and return all other port activity lights to equal brightness, thereby isolating the defective no

available setting is marked ET1, the next longest is ET2 and the longest is ET3. Simply move the jumper to the desired position. Figure 2-5. The exten

3 Operation3.1 Theory of Operation Hub States When the MOD HUB has installed expansion modules, the timing module waits for the first instance of an

accommodate this signal generation while maintaining compatibility with coaxial and fiber optic signals. Timers A simple crystal oscillator and divide

4 ServiceTD401600-0MO24Warranty Contemporary Controls (CC) warrants its new product to the original purch-aser for two years from the product shippin

AppendixPermissible Segment Lengths A segment is defined as any portion of the complete ARCNET cabling system isolated by one or more hub ports. On a

ContentsChapter 1 Introduction... 11.1 Description ...

Appendix A (continued) Permissible Cable Lengths and Nodes Per Segment Trans- ceiver Description Cable Connectors-CXS coaxial star RG-62/u BNC-

Cable Length Max Nodes Min Max Bus Segment Notes 0 2000 ft/610 m N/A 5.5 dB/1000 ft max 0 1500 ft/457 m N/A 7.0 dB/1000 ft max 6 ft/2 m1 1000

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Appendix Permissible Segment Lengths ... 25List of Figures Figure 2-1 EIA-485 Daughterboards ...

1 Introduction1.1 Description The MOD HUB series of modular active hubs provides a convenient and flexible method of expanding ARCNET local area net

There are several LED indicators that assist in troubleshooting the network. One LED indicator informs if the network has undergone a reconfiguration.

Environmental Operating temperature: Storage temperature: –0°C 40°C to to +60°C +85°C Functional Hub delay: 320 ns (typ) Unlatch delay time: 5.9 µs

1.4 Regulatory Compliance UL 1950 listed cUL listed per CSA 22.2 No. 950-95 IEC 950 classified CFR 47, Part 15 Class A CE Mark 1.5 Power Requirement

MODHUB-16F-N designation means that a version of the MODHUB-16F (with vented cover) is installed into a NEMA 1 enclosure. A duplex receptacle is prov