907-0601-00 Rev. C Model 907 Video/Data Multiplexer – User’s Guide
Focal Technologies Corp. Page 4-3
4.2 907-1394 (Firewire)
Note: This card is now obsolete and can no longer be ordered.
The 907-1394 media converter card supports multiplexing and de-multiplexing of up to two IEEE-1394-type
data streams. This card supports devices capable of transfer modes S100 (100 Mbps), S200 (200 Mbps), or
S400 (400 Mbps).
External 5 VDC (±10%) power is required via Molex connector labeled J1. The board itself draws up to 0.6 A
of current. When stacked on a motherboard, the card can also be powered via the PC/104 backplane. The
907-1394 media converter can also be configured (configuration includes populating the optional DC-DC
converter) to acquire power from devices connected to the IEEE-1394 bus. The input voltage must be
between 10 and 28 VDC, and the connected devices must meet the IEEE-1394 specification. Alternately, the
board can provide power to external devices, supplying up to 500 mA per port. The card uses a 3 A time
delay fuse for the input power (includes budget for sourced power to external devices), and another 1 A fuse
for board circuitry. Appropriate replacement fuse part-numbers are provided in the Appendix A.
As shown in Figure 4-3, the 907-1394 card has LEDs for Power, Board Reset, Cable-Link, and Optical Signal
Detect. The Power LED is on when the board is powered, the Board Reset LED is on momentarily during
power up and continuously for an under-voltage input. The Cable-Link LED is on when any link has been
established on either the IEEE-1394 or optical interfaces. The Optical Signal Detect LED is on while sufficient
optical power is detected at the optical receiver, but does not necessarily indicate valid frame data.
Figure 4-3: 907-1394 Media Converter Card
The 907-1394 card can be assembled to support various optical configurations including 1310 nm or 1550 nm
bidirectional transceivers using two fibers, or 1330/1550 nm transceivers coupled with a WDM to multiplex all
of the data onto a single fiber. The access fiber bushing near the middle of the card is typically an ST/PC
connector, but FC/PC is also available.
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