Comtech EF Data QAM256 - Manual (Page 17)

QAM256 Digital Video Modulator and Upconverter User Interfaces
TM077 – Rev. 4.0 4-1
User Interfaces
4
4.0 User Interfaces
Operation of the QAM256 consists of controlling the unit operating parameters and monitoring
status and responses via one of the control interfaces. The two user interfaces available from the
Front Panel are Front Panel Control, and Terminal Mode Control (not currently available). Either
of these methods may be used separately or together to monitor and control the QAM256.
4.1 Front Panel User Interface
The Front Panel of the QAM256 allows for complete control and monitor of all QAM256
parameters and functions via the Keypad, LCD Display and Status LEDs.
The front panel layout is shown in Figure 4-1, showing the location and labeling of the front panel.
The front panel is divided into four functional areas: the LCD Front Panel Display, the Cursor
Control Arrow Keys, the Numeric Keypad, and the Front Panel LED Indicators, each described
below in Table 4-1.
1 2 3 4
Figure 4-1. QAM256 Front Panel
Table 4-1.
Item Number Description Function
1 LCD Front Panel Display Displays QAM256 Operating parameters
and Configuration data
2 Cursor Control Arrow Keys Controls the up, down, right and left motion
of the cursor in the LCD Display window
3 Numeric Keypad Allows entry of numeric data and Clear and
Enter function keys
4 Front Panel LED Indicators See Paragraph 4.1.2 below for an itemized
description of these LEDs