Model 2016-26 Instruction Manual Downconverter February 2009 Rev A MODEL 2016 F = 2050 G = +10.0 DOWNCONVERTER MENU CROSS TECHNOLOGIES INC. EXECUTE ALARM REMOTE POWER Data, drawings, and other material contained herein are proprietary to Cross Technologies, Inc., but may be reproduced or duplicated without the prior permission of Cross Technologies, Inc. for purposes of operating the equipment. When ordering parts from Cross Technologies, Inc.
INSTRUCTION MANUAL MODEL 2016-26 Downconverter TABLE OF CONTENTS Warranty 1.0 General 1.1 Equipment Description 1.2 Technical Characteristics 1.3 Monitor & Control Interface 2.0 Installation 2.1 Mechanical 2.2 Rear Inputs/Outputs 2.3 Front Panel Controls, Indicators 2.4 Installation/Operation 2.5 Menu Settings 2.6 Use Information PAGE 2 3 3 4 6 9 9 10 11 12 13 17 WARRANTY - The following warranty applies to all Cross Technologies, Inc. products. All Cross Technologies, Inc.
MODEL 2016-26 Downconverter 1.0 General 1.1 Equipment Description The 2016-26 Downconverter converts 2000 to 2500 MHz to 140 ± 36 MHz in 1 MHz steps with low group delay and flat frequency response. Synthesized local oscillators (LO) provide frequency selection. Multifunction push button switches select the RF frequency and gain. Front panel LEDs provide indication of DC power (green), remote operation (yellow), and PLL alarm (red).
1.2 Technical Characteristics TABLE 1.0 2016-26 Downconverter Specifications* Input Characteristics (RF) Impedance/Return Loss 50 /12 dB Frequency 2.0 to 2.5 GHz Input Level -70 to -20 dBm Input 1 dB compression -15 dBm Output Characteristics (IF) Impedance/Return Loss Frequency Output level Output 1 dB compression 75 /18 dB 140 ± 36 MHz -30 to -20 dBm -15 dBm Channel Characteristics Gain range (adjustable) Image Rejection Spurious Response Frequency Response Group Delay, max Frequency Sense 0 to +50.
1.3 Monitor and Control Interface A) Remote serial interface Protocol: RS-232C, 9600 baud rate, no parity, 8 data bits, 1 start bit, and 1 stop bit.
B) Status Requests Table 1.1 lists the status requests for the 2016-34 and briefly describes them. * PLEASE NOTE: The two character {aa}(00-31) prefix, in the table below, should be used ONLY when RS-485, (OPTION-Q), is selected. TABLE 1.
C) Commands Table 1.2 lists the commands for the 2016-27 and briefly describes them. After a command is sent the 2016-27 sends a return “>” indicating the command has been received and executed. General Command Format - The general command format is {aaCND...
2.0 Installation 2.1 Mechanical The 2016-26 consists of one RF/Controller PCB housed in a 1 RU (1 3/4 inch high) by 16 inch deep chassis. A switching, ± 12, +24, +5 VDC power supply provides power for the assemblies. The 2016-26 can be secured to a rack using the 4 holes on the front panel. Figure 2.1 shows how the 2016-26 is assembled. POWER SUPPLY FIGURE 2.1 Model 2016-26 Downconverter Assembly 2016-26 Manual, Rev.
2.2 Rear Panel Input/Output Signals - Figure 2.2 shows the input and output connectors on the rear panel. J2 - RF IN 2000-2500 MHz, -70 to -20 dBm input. 50 , BNC (female) - See Table 2.2 for other options. J18 - 10 MHz REF OUTPUT (option E) 10 MHz reference output, 0 ± 3 dBm. 75 BNC female connector. J3 - 10 MHz EXT REF INPUT (option E) 10 MHz external reference input, 0 ± 3 dBm, 75 BNC female connector.
2.3 Front Panel Controls and Indicators - The following are the front panel controls and indicators. DS1 - REMOTE LED Yellow LED indicates remote operation. DS6 - POWER LED Green LED indicates presence of DC power. LCD DISPLAY Display shows frequency in MHz and Gain in dB, and is used to change settings in Program mode. F = 2050 G = +10.0 S1 - MENU/EXECUTE BUTTON Press this to get into Program mode and to execute any changes.
2.4 Installation / Operation 2.4.1 Installing and Operating the 2016-26, Downconverter Section 1. Connect a -20 dBm to -140 dBm signal to RF In, J2 (Figure 2.2) 2. Connect the IF OUT, J1, to the external equipment 3. Connect 90- 260 VAC, 47 - 63 Hz to AC on the back panel. 4. Set the desired input frequency (See Section 2.5 Menu Settings). 5. Set the gain for 0 to +50 dB. Make sure the output stays within -20 to -30 dBm with the gain selected and the input level provided. (See Section 2.5 Menu Settings).
2.5 Menu Settings 2.5.1 Functions This section describes operation of the front panel controls. There are three operator switches, the LCD display and alarm indicator LEDs. All functions for the equipment are controlled by these components. The functions are (see Figure 2.
2.5.2. Power On Settings NOTE: The last status of a unit is retained even when power is removed. When power is restored, the unit will return to it's previous settings. When power is first applied, the LCD display goes through three steps. 1.The LCD goes black to show all segments are functioning. 2.The software version will be displayed. REV 1.00 3.The present frequency and gain of the downconverter is shown. F=2250 G=+00 The unit is now operational and ready for any changes the operator may desire. 2.
2.5.4 Frequency Changes At any time during the modification process, if you have made a mistake and do not wish to save the changes you have made, do not press the Menu/Execute switch; simply do nothing for approximately 12 seconds, and the system will return to the normal operating mode or scroll to “R” and push the menu/Execute switch and select “NO” in the “SAVE SETTINGS?” window. To change the FREQUENCY: 1. Operate the Menu/Execute switch until you get to the menu item you want to change see Figure 2.
2.5.5 Gain Changes When you get to this menu note that the gain changes will be made as you make them but if you do not wish to save the changes you have made, scroll to “R” and push the menu/Execute switch and select “NO” in the “SAVE SETTINGS?” window or do not press the Menu/Execute switch; simply do nothing for approximately 12 seconds, and the system will return to the normal operating mode.
2.5.5 Alarm Indications An alarm condition for will occur if the local oscillator phase lock loop (PLL) comes out of lock. The Mute LED will light if you select to mute the Tx Signal and the Remote LED will light when you select the Remote mode. ON POWER UP REV 1.
2.6 Use Information A. Elevated operating ambient temperature - if installed in a closed or multi-unit rack assembly, the operating ambient temperature of the rack may be greater than room ambient temperature. Therefore, consideration should be given to Tmra. B. Reduced air flow - Installation of the equipment in a rack should be such that the amount of air flow required for safe operation of the equipment is not compromised. Additional space between unit may be required. C.
CROSS TECHNOLOGIES, INC. 6170 Shiloh Road Alpharetta, Georgia 30005 (770) 886-8005 FAX (770) 886-7964 Toll Free 888-900-5588 WEB www.crosstechnologies.com E-MAIL info@crosstechnologies.com 2016-26 Manual, Rev.
