Euphonix FC726 Format Converter Users Manual Introduction and Interface
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3. Format A AES Connectors
Seven DB-25 connectors connect AES devices to the FC726. Each connector pro-
vides eight bidirectional channels (four AES pairs). To connect to the third-party de-
vices, use the DB-25-to-XLR breakout cable available from Euphonix.
NOTE: Do not use DB-25-to-XLR breakout cables made by other companies because
the pin numbering may be incompatible! See Appendix A: Pinout and Cable
Specifications for specific cable information.
4. Format A MADI IN and MADI OUT
The Format A MADI In and MADI Out BNC connectors interface with non-Eu-
phonix MADI devices. At 48 kHz, MADI A provides 24-bit audio on 56 chan-
nels. At 96 kHz, only 28 24-bit audio channels (1–28) are available.
NOTE: Unlike MADI B, which has a second set of I/O connectors, MADI A provides
only 28 channels at 96 kHz.
5. Service DB-9 Jack
This jack connects to a PC’s serial port to upgrade the FC726 firmware.
CAUTION: Do not connect anything to the Service DB-9 jack unless instructed to do
so by Euphonix technical support.
6. DIP Switches
These eight DIP switches (numbered 1–8 from left to right) set various modes on
the FC726. Switches 3–5 and 7 are not currently implemented.
Switch #1 Bidirectional mode
Flip this switch when converting between third-party formats using one FC726
(see page 24).
Switch #2 MADI MERGE
When set to MADI MERGE (down), Format B MADI Input 1 channels 1–24 are
merged with Format B MADI Input 2 channels 1–28 and Format B MADI Input
1 channels 25–28 to form a single 56-channel input stream. Format B MADI Out-
put 1 sends channels 1–56 and Format B MADI Output 2 sends channels 25–56
followed by 1–24 from the third-party inputs.
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