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Model 4010 DC Remote Daughter Board
connector P2 (upper strip connector). If the channel number is even, use connector P3.
The Daughter board comes with two standoffs and mounting screws. First, remove the
screws, and then install the Daughter board into the strip connector. Using the screws and
standoffs, secure the board to the Dual Channel Card. Insert the Dual Channel Card into
the channel slot by placing the side away from the back panel in first, then rock the card
towards the back panel into position. Take care that the LEDs are properly positioned.
Secure the board by inserting the screw through the hole in the back panel into the bracket
on the card.
DC Current Calibration
The DC Remote Daughter Board has a potentiometer to adjust the DC current level. The
pot is adjusted at the factory and should not require adjustment. The pot (R15) is
accessible from the top of the unit (with Model 4010 cover open) and, with a current meter
in series with the transmission line, can be adjusted to the desired level. The factory
adjustment is for 0.5-milliampere programmable steps.
Programming
The Console Programming System (CPSW) is used to set the current levels for the various
transmission requirements. The DC board can be programmed in 0.5-milliampere
increments up to a maximum of 15 milliamperes. Refer to
LOTL Option
The LOTL (line operated transmit lamp) indication is provided with the DC Remote
Daughter Board. This signal is used to indicate when a transmission is occurring and to
prevent the Model 4010 from transmitting while the line is busy. This signal is not useful
if there is no parallel device (console or station remote) and should be disabled with the
jumper on the DC board.
Note
DC current levels are programmable in 0.5-milliampere steps and
R15 is used only for fine adjustment.
LOTL
Enabled
Disable
Jumper JP1
A
B
Содержание 4010
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Страница 46: ...Console Installation 46 025 9227S ...
Страница 78: ...Option Installation 78 025 9227S ...
Страница 134: ...Appendix D Troubleshooting 134 025 9227S ...