The repeater is designed and manufactured to operate with the i-TunneL® B-Scout system and will operate exclusively as part of the data-bus network.
Provided with plugs and sockets that mate directly with the i-TunneL® data-bus assemblies, the repeater simply plugs into the network at the appropriate point. Requiring only a standard 3A fused mains supply (usually from the tunnel UPS supply), the unit can be located either in a suitable distribution enclosure or up in the tunnel crown with the luminaires.
Key Features
Used in conjunction with the i-TunneL® lighting control and monitoring system, the RS-485 data-bus repeater is used to extend the capabilities of the communications network. Provided with the same plug and socket connections used on the tunnel luminaire series, the unit provides simple plug-and-play connection to the B-Scout system data-bus. With no set-up or commissioning requirements, the repeater offers true fit and forget benefits, providing long term reliability.
Features & Benefits
- Extends i-TunneL® data-bus by 1.2km and/or 250 B-Scout units
- Allows maximum data-bus use of 1000 B-Scouts at up-to 4.8km (3 repeaters max.)
- Connects directly to i-TunneL® data-bus assemblies
- No specialist engineers and no set-up required
- IP65 housing suitable for locating in a variety of locations within the tunnel
- Supplied complete with mounting brackets
- Includes internal end-of-line resistors
- Provides isolation between data-bus sections to 2kV
- Bus inputs surge protected to 15kV ESD
Example Topology
The i-TunneL® system offers the simplest connection topology and offers a true single layer loop-in-loop-out network. Uniquely, only one software and one hardware protocol is used throughout the whole system. The repeaters allow the data-bus to be extended and are provided with the same plug and socket arrangement found on the luminaires.
No Repeaters
Without the need for any repeaters the data-bus network can control up to 250 lamps (via the B-Scout units) at a distance of up to 1.2km. Four of these buses are available from each B-ScoutMaster.
No Repeaters = up to 250 lamps @ 1.2km
With Repeaters
Each repeater extends the network for an extra 250 lamps and a further 1.2km. With a maximum of 3 repeaters, this allows up to 1000 lamps at 4.8km on each of the four data-buses emanating from the B-ScoutMaster.
1 No. Repeater = up to 500 lamps @ 2.4km
2 No.Repeaters = up to 750 lamps @ 3.6km
3 No.Repeaters = up to 1000 lamps @ 4.8km
Technical Data
Supply | 3A fused 230VAC 50Hz (normally from lighting UPS) |
Power Consumption | < 5W |
RS-485 connection | Standard i-TunneL® plug & socket arrangement |
Sealing | IP65 |
Isolation | 2kV power & signals |
Surge Protection | 15kV ESD RMS, for all signals |
RS-485 Direction | Automatic data direction control |
Baud Rate | Automatic |
Ambient Temperature | -20oC to +55oC |
Short Circuit Protection | Protection from two signal lines being shorted |
Repeater Module (internal) approvals | CE Class B, FCC Class B |
Weight | 2kg approx. |
Dimensions & Range
Type No. | Description |
IT-RS485-1CHRE | RS-485 Single channel repeater enclosure |
IMPORTANT – Provide sufficient room below the enclosure to allow cable access.
Associated Products
IT-RS485-TSS1CS - RS-485 Single pair trunk bus cable
IT-RS485-CA3LD-FITTED - RS-485 Flying lead terminal socket
IT-RS485-CA3LS-FITTED - RS-485 Flying lead terminal plug
Data sheet
No PDF available