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Fleetwatch FMS · Fuel Lane Hardware
What Is a JB20?
The JB20 is the RIH Junction Box, the backbone of every Fleetwatch Fluid Management System installation. All FMS power, signals and communications for a fuel lane run through it. The current model, the JB20i, offers the same reliability and simplicity as earlier models and adds intrusion detection and bypass monitoring.
The JB20i RIH Junction Box.
Inside the JB20i: pre-wired DIN rail components, with wiring guides on the door.
What’s Inside
| Circuit breakers | Breakers for both the electronics and the mechanical side (pulsers, pumps, etc.). CB1 powers the RIH, and CB2 powers the fluid reels. Z and G rated breakers come in several sizes to protect the electronics. |
| Relays | One relay per fuel or fluid turns its valve on and off. They’re electronic, optically isolated relays, de-rated for long life and full outdoor temperatures. All relays are DIN rail mounted for quick replacement. Electromechanical relays can be used where needed and are form-compatible. |
| Bypass switches | Clearly labeled, monitored switches that “wire out” the system for any fluid, for testing or if the system fails. You can always fuel your fleet. |
| Power supplies | High-reliability, filtered power supplies for the external sensors (pulsers, vehicle detectors, etc.). They’re DIN mounted for easy replacement. |
| DeviceMaster | Network interface for the RIH. Ethernet connects with a standard RJ-45 cable (10/100/1000 networks supported). |
| RIH cables | The RIH connects to the JB20 with 3 or 4 cables: power, communications, the RF system and fluid pulsers. All cable connections are military rated and either fully potted or run in conduit. |
What’s New in the JB20i
| Intrusion detection | Records the date and time each time the junction box door is opened or closed. Email and text alerts are available when the door is opened. |
| Manual bypass detection | Records the fluid, date and time whenever a fluid is switched to manual bypass in the junction box. Email and text alerts are available. |
| Simpler bypass switch panel | Easy-to-identify switches let you manually bypass any fluid Fleetwatch controls, for testing or other purposes. |
| LED interior lighting | Bright LED lights help with inspection and maintenance in dim areas. |
Example text alerts from a JB20i: junction box opened, and a fluid switched to manual bypass.
Built for Easy Service
- Pre-wired at the factory. Installers only need to terminate the field wiring.
- Field wiring goes into the top of each rail, in standard, easy-to-find locations.
- Clean, organized wiring with wiring guides so you can see how everything is connected.
- Off-the-shelf parts wherever possible, so users can maintain it easily.
- Industrial-grade, de-rated components run well within their limits and last longer.
Specifications
| Enclosure size | 24 × 20 × 8 in. (overall length 26 in.) |
| Panel size | 21 × 17 in. |
| Mounting | 25 × 13 in. |
| Material & finish | 16 or 14 gauge galvanized steel. ANSI 61 gray polyester powder paint inside and out. |
| Weather protection | Drip shield top and seam-free sides, front and back. Built for wet outdoor environments. No gaskets or knockouts to weaken the structure. |
| Door & security | 16 gauge plated steel continuous hinge with stainless steel pin. Captive plated steel cover screws. Hasp and staple for a padlock. Collar studs for mounting optional panels. |
| Electrical | UL and CE listed components (relays, power supplies, connectors, etc.). Tested to ETL safety standards for NEC compliance. |
Safety: The JB20 has live high-voltage wiring inside. Only qualified personnel should open it or work inside it.
Want to set up door or bypass alerts, or have questions about your JB20? Contact Fleetwatch Support.