Multiplexer (AI MUX)
The Access Platform MUX8 adds flexibility to expand a single data line into multiple data lines to meet difficult system design and installation challenges. Common uses include star topology, wiring schemes, home-run wiring, or when wiring distances exceed the 4000 ft. limit of the RS-485 standard. It utilizes bus-arbitration logic on a first-come, first-serve basis and can detect and deactivate a broken channel to protect the integrity of the communications bus. The MUX8 is an 8-port multi-device interface panel that provides the flexibility to take RS-485 or RS-232 wiring inputs to create up to four 4-wire RS-485 communication channels or up to eight 2-wire RS-485 channels.
Application Notes
Mercury’s MUX8 multiplexer accessories add to a developer’s ability to manage divergent system installations. Unmatched power, flexibility, and economy make the Mercury multiplexers an essential, reliable and efficient element for developing today’s sophisticated security systems in complex environments.
Features
- Per port voltage isolation
- Universal system compatibilities across intelligent controller families
- RS-232 or RS-485 inputs accepted
- Supports up to four, 4-wire RS-485 channels or up to eight, 2-wire RS-485 channels
Benefits
- Conquer difficult installations
- Guard against ground loop installation issues
- Flexibly expand data lines
System Diagram
Specifications
| General |
| Primary Power | 12 to 24 VDC ± 15%, 350mA |
| Interface Ports | Port 1: RS-232/RS-485, selectable Port 3,5,7,9: RS-485, Transmit/Receive Port 2,4,6,8: RS-485, Transmit/Receive, or Receive Only |
| Cable Requirements | Power: 1 pair, 18 AWG RS-485: 24AWG, 4,000ft (1,200m) max., twisted pair(s) with shield. RS-232: 24AWG, 50ft (15m) max. |
| Dimensions | 5 in (127mm)L x 6in (152mm)W x 1 in (25mm)H |
| Temperature | 0 to 70 °C operational, -55 to 85 °C storage |
| Humidity | 5 to 95% RHNC |
| Standards | UL 294 Recognized CE Compliant RoHS |
Ordering Information:
| MFG Part # | BluBØX Order # | Description |
|---|---|---|
| XXXX | XXXX | XXXX |
| XXXX | XXXX | XXXX |