JANOS Help System: [Commands] [Topics] [Tech Support] [Printable Manual] [Search]
Sensor Port Expansion Bus The Sensor Port Expansion Bus is located at the top of the JNIOR between the POWER and AUX serial port. This is a proprietary 6-wire communication bus. INTEG provides a number of expansion modules that are connected in a daisy-chain fashion to this port. These modules include a Power 4ROUT module offering 10A relays, both 10V and 4-20ma analog modules, and a rack-mounted Control Panel. In addition there are temperature and humidity sensors available. CABLES Standard length cables are supplied with purchased expansion modules. Custom length cables may be requested or constructed by the customer. The maximum overall network length should not exceed 50 feet or 15 meters. Wire - 6-conductor flat modular cable (26 AWG) Plug - 6p6c (RJ12) unshielded IDC (2 required) Tool - RJ11/RJ12/RJ45 Network & Phone Crimp Tool tab ---\ /-----+ +-----+ | |=============================================| | +-----+ +-----/ \--- tab Note: Tab locations for proper cable construction. NOTES Devices generally are connected in a serial daisy-chain fashion. The network length is measured from the JNIOR to the furthest connected device. Success with various cable lengths will be highly dependent on factors many of which are not predictable. Your experiences may vary. Operation is not guaranteed with network lengths over 20 feet or 6 meters. Performance is also dependent on the number and types of modules employed. If a sensor must be located far from the JNIOR consider placing the JNIOR closer to the sensor as opposed to a lengthy cable. This will reduce communications errors and retries which ultimately will improve performance. SEE ALSO HELP Topics: MODELS [/flash/manpages/hardware.hlp:288]