BNC 130 - Manual (Page 13)

13
OPERATING INFORMATION cont’d
CONNECTORS
Three connectors appear on the 106C/155/130 module front panel.
LIGHT OUT provides the optical output from the module. A single-mode 8/123 Mm fiber with an ST
connector is required (the unit can be configured for other connectors; consult the factory for details). To
keep dust out of the connector when a fiber is not attached, a dust cap is provided.
EXT DR (External Drive) is a threaded SMA (3 mm) connector for accepting drive signal inputs to the
module.
EXT MOD (External Modulation) is a threaded SMA (3 mm) connector that accepts external signals to
modulate the instantaneous light output power level.
Rear Panel Description
The rear panel of the 106C/155/130 module has a mounting screw (for installation into the mainframe),
one 40-pin edge connector, and one SMA connector.
The 40-pin connector allows the 6040 mainframe to control and communicate with the module and also
supplies the power to the module.
The SMA (snap-on type) connector receives the high speed pulse generator DRIVE signal from the
mainframe. This signal is an ECL version of the mainframe's front panel PULSE OUT.
Mainframe Operation
This section presents information on how to operate the Model 6040 Universal Pulse Generator with the
Model 106C, 155 or Model 130 optical module installed. Only the details that are specific to the module
are described. For an overall description of how to use the mainframe with plug-in modules, please refer
to the 6040 manual.
Front Panel Programming
When operating the instrument from the front panel, certain control keys have module dependent action,
as indicated in the 6040 manual. The aspects of these keys, and the menus they control, that are not
general to the mainframe will be listed here.
An overall chart of the menu keys, showing which menu selections have control in each Mode, is given in
Table 2-1. An “x” in the column for a given Mode indicates that the menu selection operates in that Mode.