Olson Technology OTEB-CW-B - Manual (Page 23)

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6. The unit should be powered up at this point. The fans will be spinning and front
panel LED’s will be illuminated. The power supply LED’s on the rear of the unit
should both be green. The laser emission key-switch should remain in the off posi-
tion.
7. If the unit will be connected to a wired network LAN then the Ethernet cable should
be connected to the Ethernet port on the front of unit at this time and routed to an
appropriate networking hub or switch.
8. If required an RS-232 cable may be connected to the serial port on the front panel of
the unit.
a. The RS-232 interface has been set to the following parameters: 9600 Baud, 8
data bits, 1 stop bit, no parity and no flow control.
b. A three wire (RxD, TxD, GND) interface is used. In addition, the interface cable
must have the proper connector on each end. Cables typically have 9 pins
(DB-9) or 25 pins (DB-25) with ‘male’ pins or ‘female’ receptacles inside the
connector shell. The RS-232 connector on the front panel of the Laser Driver
is a 9 pin (DB-9) female connector. Therefore the users’ interface cable must
have a 9 pin male (DB-9) connector on one end to connect to the laser driver.
The other end of this cable needs to match the computers’ interface connec-
tor. Remember that this cable must be wired in a straight-through configura-
tion. Therefore, on a computer connection with a 9-pin DB-9 connector Pin 2
would connect to Pin 2, Pin 3 to Pin 3 and Pin 5 to Pin 5.