TEL T-48, Operating And Maintenance Manual

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Revision A T-48 90 008 026
2-3
SECTION B
OPERATING CONTROLS, INDICATORS, AND CONNECTORS
2.5 General
This section covers the location and function of the operating controls, indicators, and connectors. All
controls, indicators, and connectors are located on the front panel of the Test Set.
2.6 Controls, Indicators, and Connectors
Table 2-2 and Figure 2-2 describes and shows locations for each of the T-48 Test Set controls, indicators,
and connectors.
Control, Indicator or
Connector
FUNCTION
1
DATA DISPLAY WINDOW
Alpha/Numeric Display (two lines/20 characters), provides operational
instructions, error messages, and scenario progress and test results.
2 LIGHTS/OFF Switch
De-energizes Test Set when toggled down. Provides Backlighting for display
when toggled up.
3 ANTENNA Connector Connector for Omni-Directional Antenna and TAP-135 Antenna Coupler.
4 AC POWER Indicator
Green “LED” indicates battery charging and AC power connected. When the
battery alone is being used, the LED will not illuminate.
5
VOLTAGE CHANGE/FUSE
CARTRIDGE Contains 2- 250V ¼ amp removable fuses for 115 VAC operations. Permits
the operator to also configure for 220 VAC operations.
6 AC POWER Switch
AC ON/OFF Switch (“-” = ON, “0” = OFF). Allows access to “Calibration
Mode”.
7 AC Power Receptacle Allows the connection of the supplied AC power cord.
8 STORE/REPEAT Switch
Permits the operator to repeat a specific test or store data in the T/S RAM for
download to a PC.
9 ACCESS Connector RS-232 link for download of stored data to a PC (under development).
10 INTERROGATE SWITCH
1. Initiates Automatic transponder test sequence.
2. Serves to enter and store data on the T/S RAM.
3. With Test set “OFF”, pressing the
INTERROGATE Switch will turn
it “ON”.
11 TEST SWITCH
1. Allows manual sequence of tests to run and be displayed.
2. With Test Set “OFF”, pressing the
TEST Switch will turn the Test Set
“ON”.
Controls, Indicators, and Connector Functions
Table 2-2