E F - 1 M I N T E R F A C E
3 - 1 0
INTERNAL ADJUSTMENTS
The only user-adjustable internal setting is selection of the baud rate for the RS-422 data.
The factory-set baud rate for the RS-422 data is 19.2 kilobits per second (19.2 kbps). For
certain transmission schemes, the baud rate is internally selectable for 2400, 4800, or
9600 bits per second. Additional fixed settings are: 8 data bits; 1 stop bit; no parity.
NOTE:
Accessing the baud rate jumpers inside the EF-1M requires removal of the cover.
Removing the cover of the EF-1M
Three tools are required for this procedure: a #2 Phillips screwdriver, a 3/16 in. nut driver,
and a flat-bladed screwdriver with a blade width of approximately .075 in. (1.9 mm).
To remove the cover of the EF-1M unit:
1. Disconnect all cables.
2. Remove the four sheet metal screws on the back and sides.
3. The XLR jack has a special locking tab to secure it to the housing. The jack must be
released before the cover can be removed. Use a very narrow-tipped screwdriver, like a
“greenie.” Insert it into the slot inside the XLR jack and twist the release lock
counterclockwise for approximately 1/4 turn.
4. Remove the two 3/16 in. hex-head jack screws on the DB-15.
5. Slide the cover backwards until the DB-15 and XLR jacks are clear.
You can set the baud
rate for 2400, 4800, or
9600 bits per second.
