Comtech EF Data LTT1450G - Manual (Page 7)

LTT1450G Ku-Band Loop Test Translator Table of Contents
TM063 - Rev. 1 v
Table of Contents
1.0 Introduction…..………………………………………………………………………………………… 1-1
1.1 Model LTT1450G Ku-Band Translator Overview………………………………………………….. 1-1
2.0 Installation Requirements…..…...…………………………………………………………………… 2-1
2.1 Mounting….………..…………………………………………………………………………………… 2-1
2.2 Power-Up…..…………….…..………………………………………………………………………… 2-1
2.3 Apply Signals..…………………………………………………………………………………………. 2-2
2.4 Receive Signal Injection.….………………………………………………………………………… 2-2
2.5 Hardware Description………………………………………………………………………………… 2-2
2.5.1 Ku-Band PLO….…………………………………………………………………………………… 2-3
2.5.2 Ku-Band Converter Module..……..……………………………………………………………… 2-3
2.5.3 Microcontroller PWB AS/1030…………………………………………………………….. 2-4
3.0 Operating Procedures ..……………..….……………………………………………………………. 3-1
3.1 Operator Controls……..……..……………………………………………………………………… 3-1
3.1.1 Power On/Off……………………………………………………………………………………… 3-1
3.1.2 Power LED…………………………………………………………………………………………… 3-1
3.1.3 FREQ ADJ.………………………………………………………………………………………… 3-1
3.1.4 RCV Monitor………………………………………………………………………………………… 3-1
3.1.5 EXT Reference LED………………………………………………………………………………… 3-1
3.1.6 Remote LED………………………………………………………………………………………… 3-2
3.1.7 LO Fault..…………………………………………………………………………………………… 3-2
3.1.8 LCD Display………………………………………………………………………………………… 3-2
3.2 Pushbutton Panel.…………………………………………………………………………………… 3-2
3.3 Rear Panel Connectors and Adjustments……………………………………………………………3-3
3.3.1 TX and RX RF I/O………………………………………………………………………………….. 3-3
3.3.2 REF IN……………………………………………………………………………………………… 3-3