IEEE 1394 9 Pin Coax Repeater

The FireNEX™-COAX-S800 uses flexible coax cabling. There are several advantages in using a standard 75Ω COAX cable: it has excellent EMC performance, low cost connections, enables terminations by the end user, and the possibility of using existing cabling infrastructure. Since the FireNEX™-COAX-S800 repeater has two 1394b ports, it can also be used as a hub for "daisy chain"-type connections, with a few devices connected at the same time.


  • Compliant with both IEEE1394b and IEEE1394a specifications
  • Data transfer rate at 100/200/400/800 Mbps
  • Two 9-pin IEEE1394 bilingual copper ports with industrial locking screws
  • One standard 75Ω BNC port
  • Reach up to a repeater-to-repeater distance of 60 meters using a standard 75Ω COAX cable
  • RoHS Certified
  • COAX Cable Bus Power through 9 pin ports at standard 75Ω BNC


79 x 30 x 60 mm
Power Input
Power Consumption
3W @ 12V
Power Adapter
AC Input 100V - 240V, 50/60Hz DC Output 12V,1A
Operating Temperature
Up to 50°C (Up to 122°F)
Maximum Length
(repeater-to-repeater): 60 meters (with RG6 cables)


Q: What is the length that the FireNEX™-COAX-800 can support?
A: The FireNEX™-COAX-800 will support up to the maximum length of 60 meters with RG6 COAX cables. Using other 75Ω cables can reduce the maximum length.

Q: What is the maximum speed of the FireNEX™-COAX-S800?
A: The FireNEX™-COAX-S800 can support up to the maximum speed of 800 Mbps.

Q: Can the FireNEX™-800 itself be a FireWire repeater?
A: Yes, the FireNEX™-800 can be used as a two-port FireWire repeater alone, repeating through the two copper ports.

Q: Do I have to use two FireNEX™-COAX-800 repeaters to make it work?
A: Yes, a pair of FireNEX™-COAX-S800 is needed for the IEEE1394 over COAX cable extension. Both FireNEX™-COAX-S800 units can act as either the transceiver or the receiver.

Q: Which FireNEX™-COAX-S800 connects to the host system and which FireNEX™-COAX-S800 connects to the device?
A: The host system and the devices can be connected to either FireNEX™-COAX-S800 unit.

Q: Where can the RoHS Certificate for FireNEX™-COAX-800 be found?
A: FireNEX™-COAX-800 Rohs Certifcation can be found in Newnex's FireNEX™ Repeaters Certifcate.

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