OptoTest OP940-SW Instruction Manual page 6

OP940-SW
Notice Concerning Front Panel Connector
It is advised by OptoTest that the user connects a short SAVer cable to the front panel.
This cable must be angle polished on both ends and can range from 0.4m in length to
3m in length. The cable should be of reference quality and should stay on the unit even
during down time. One APC end of this cable is connected to the front panel and the
other end is where the reference cable would be connected. The sacrificial cable should
be replaced or repaired when its open connector becomes damaged. This cable and
additional accessories are listed in the care, cleaning and warranty booklet also included
in this shipment.
Keeping the front panel interface clean and contaminant-free is paramount to
good, repeatable insertion loss and return loss measurements, and minimizing the
amount of connections made to the front panel will limit the possibility of scratching or
contaminating the front panel connector.
OP940
IL/RL Test System
The OP940 has a removable panel for the source connector. This will allow the customer
to re-polish the front panel connector if it gets damaged without having to send the unit
back to OptoTest. Please see the instructions included in this manual for removing the
source panel.
Warming up the OP940
For the OP940 to reach equilibrium it is advised that the unit be allowed to warm-up
for approximately 15 minutes, so that the lasers and/or LEDs inside the unit can be
acclimated. Simply turning on the unit and allowing it to sit idle will not exercise both
lasers (for SM systems) or both LEDs (for MM systems). When initially turned on only
a single source is on. It is recommended that after the unit is turned on it is placed in
IL mode with the Dual option selected. This will switch the unit between both source
wavelengths allowing both sources to be warmed up concurrently.
5 of 49
REMOTE HEAD PORT