Instruction Manual
Model 2016-25
Downconverter
September 2015, Rev. L
F = 2250.000
G = +10
MENU
EXECUTE
MODEL 2016
DOWNCONVERTER
C
ROSS
T
ECHNOLOGIES INC.
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., be sure to include the equipment
model number, equipment serial number, and a description of the part.
C ROSS T ECHNOLOGIES, 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 [email protected]
Instruction Manual
MODEL 2016-25 Downconverter
TABLE OF CONTENTS
Warranty
1.0 General
1.1 Equipment Description
1.2 Technical Characteristics
1.3 Monitor & Control Interface
1.4 Environmental Use Information
2.0 Installation
2.1 Mechanical
2.2 Rear Inputs/Outputs
2.3 Front Panel Controls, Indicators
2.4 Operation
2.5 Menu Settings
PAGE
5
8
9
9
2
3
3
4
10
11
12
13
WARRANTY - The following warranty applies to all Cross Technologies, Inc. products.
All Cross Technologies, Inc. products are warranted against defective materials and workmanship for a period of one year after shipment to customer. Cross Technologies,
Inc.’s obligation under this warranty is limited to repairing or, at Cross Technologies, Inc.’s option, replacing parts, subassemblies, or entire assemblies. Cross Technologies, Inc. shall not be liable for any special, indirect, or consequential damages. This warranty does not cover parts or equipment which have been subject to misuse, negligence, or accident by the customer during use. All shipping costs for warranty repairs will be prepaid by the customer. There are not other warranties, express or implied, except as stated herein.
2016-25 Manual, Rev. L
C ROSS T ECHNOLOGIES, 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 [email protected]
Page 2 09/15/15
MODEL 2016-25 Downconverter
1.0 General
1.1 Equipment Description
The 2016-25 Downconverter converts 2000 to 2500 MHz to 70 ± 18 MHz in 1 MHz step (0.5 MHz to 1 kHz
step options available) with low group delay and flat frequency response. Synthesized local oscillators (LO) provide frequency selection. Push button switches select the RF frequency, gain, and other parameters. Front panel LEDs provide indication of DC power (green), remote operation (yellow), and PLL alarm (red). Variable attenuators for the RF input provide a gain range of 0 to +50 dB as adjusted by the front panel pushbutton switches. Remote operation allows selection of frequency and gain. Parameter selection and frequency and gain settings appear on the LCD display. Connectors are BNC female for RF, IF and the optional external reference input and output. The -E external 10 MHz option includes a 10 MHz output connector which contains either the internal or external 10 MHz reference signal. A -H high stability (±0.01ppm) option is also available. The unit is powered by a 100-240 ±10% VAC power supply, and housed in a 1 3/4” X 19” X 16” rack mount chassis.
MODEL 2016
DOWNCONVERTER
F = 2250.000
G = +10
MENU
EXECUTE
C
ROSS
T
ECHNOLOGIES INC.
ALARM REMOTE POWER
FRONT PANEL
AC
GND RF IN
10 MHZ
EXT REF
INPUT
J2 DS8
IF OUT 10 MHZ REF
OUTPUT
J1 J18
REAR PANEL
MONITOR
AND
CONTROL
5 4
9 8
3
7
2
6
1
J10 J3 J20
FIGURE 1.1 Model 2016-25 Front and Rear Panels
2.0
to
2.5
GHz
IN
VAR
ATT
70
MHz
OUT
INT/EXT
10 MHz
EXT
10 MHz *
INT
10 MHz
F=2250 G=+10
CONTROLLER
FIGURE 1.2 Model 2016-25 Downconverter Block Diagrams
2016-25 Manual, Rev. L Page 3 09/15/15
1.2 Technical Characteristics
TABLE 1.1
2016-25 Downconverter Specifications*
Input Characteristics (RF)
Impedance / Return Loss
Frequency
Noise Figure, Maximum
Level Range
Output Characteristics (IF)
Impedance / Return Loss
Frequency
Output Level
Output 1 dB Compression
Channel Characteristics
Gain Range (adjustable)
Image Rejection
Frequency Response
Spurious Response
Group Delay, max.
Frequency Sense
Synthesizer Characteristics
Frequency Accuracy
Frequency Step
10 MHz In/Out Level
50 Ω / 12 dB
2.0 to 2.5 GHz
15 dB (Maximum Gain)
-70 to -20 dBm
75 Ω / 18 dB
70 ±18 MHz
-30 to -20 dBm
-15 dBm
0.0 to +50.0 dB
> 50 dB, min.
±1.5 dB, 2.0 - 2.5 GHz; ±0.5 dB, 36 MHz BW
<-45 dBC, in band
0.015 ns/MHz parabolic; 0.05ns/MHz linear; 1 ns ripple
Inverting or Non-inverting (selectable)
± 1.0 ppm internal reference (+0.01 ppm, option H)
1.0 MHz (0.5 MHz to 1 kHz step options available)
3 dBm ± 3 dB, (option - E)
Phase Noise @ F (Hz) > 10
Standard-1 MHz Steps: dBC/Hz -55
Controls, Indicators
Frequency / Gain Selection
Power, Alarm, Remote, Mute
Remote
Other Esterbal
RF, IF Connectors
10 MHz Connectors
Alarm / Remote Connector
Size
Power
100
-70
1K
-70
50 Ω BNC (female), 75 Ω BNC (female)
10K
-80
Direct readout LCD; manual or remote selection
Green LED, Red LED, Yellow LED, Red LED
RS232C, 9600 baud (RS485, Ethernet Optional)
BNC (female) 75 Ω , works with 50 or 75 ohms (option E)
DB9 (female) - NO or NC contact closure on Alarm
19 inch, 1RU Standard Chassis 1.75” high X 16.0” deep
100K
-95
1M
-105
100-24 ±10% VAC, 47-63 Hz, 45 watts max. (24 and 48 VDC Optional)
Available Options
- E
- H
- 5
- X
- X1004
External 10 MHz Ref. Input & Output
High Stability (± 0.01ppm) internal ref.
0.5 MHz Frequency Steps
125 kHz Step Size
1 kHz Step, includes Option -H
Connector/Impedance See Table 2.2 - PG 10
*+0 to +50 degrees C; Specifications subject to change without notice.
Communication Interface/Std. RS232
- Q
- W8
- W18
- W28
RS485 Remote Interface
Ethernet; with Web Browser
Ethernet; with Web Browser & SNMP
Ethernet; with TCP/IP, Telnet®
Cross Technologies, Inc. 2012
2016-25 Manual, Rev. L Page 4 09/15/15
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.
(RS-232C, RS-422, or RS-485 - option -Q)
7
8
5
6
9
3
4
1
2
M&C Cable Diagram - Cross Technologies Frequency Converters
Female DB-9
PC Com Port
Male DB-9
2015/16/17 M&CPort
5
6
7
8
9
1
2
3
4
Connector: Rear panel, DB-9 male
6
7
8
9
3
4
5
Pin
1
2
Function
Rx-
Rx+ (RS-232C)
Tx+ (RS-232C)
Tx-
GND
Alarm Relay: Common
Alarm Relay: Normally Open
Not Used
Alarm Relay: Normally Closed
2016-25 Manual, Rev. L Page 5 09/15/15
B) Status Requests
Table 1.1 lists the status requests for the 2016-25 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.
Command
Command Status
10MHz Ref Status
(option E only)
Syntax*
{aaS1}
{aaS2}
Description
Returns {S1bbbbccIA} where:
• bbbb = Rx frequency (MHz)
• xxxx = 4 characters standard -
(7 characters - Option-X) (5 characters - Option-5)
• cc = Rx gain
• I = 0 - non-inverted Receiver; I = 1 - inverted
• A = Summary Alarm; 1=Alarmed, 0=Normal
Returns {S2E} where:
• E = 1 - external 10 MHz switched in
2016-25 Manual, Rev. L Page 6 09/15/15
C) Commands
Table 1.2 lists the commands for the 2016-25 and briefly describes them. After a command is sent the
2016-25 sends a return “>” indicating the command has been received and executed.
General Command Format - The general command format is {aaCND...}, where:
{ = start byte aa = address (RS-485 only - option Q)
C = 1 character, either C (command) or S (status)
N = 1 character command or status request
D = 1 character or more of data (depends on command)
} = stop byte
* PLEASE NOTE: The two character {aa}(00-31) prefix, in the table below,
should be used ONLY when RS-485, (OPTION-Q), is selected.
Command
Set Receiver Frequency
Set Receiver Gain
Enable Spectrum Invert
Enable External 10MHz IN
(option E only)
Enable Remote
Disable Remote
Syntax* Description
{aaC2xxxx} where:
• xxxx = 4 characters standard -
(7 characters - Option-X) (5 characters - Option-5)
• Range: 2000 to 2500 MHz
{aaC4xx} where:
• xx = 2 characters
• Range: 00 to 50 (0 dB to +50 dB, in 1 dB steps)
{aaC7x}
{aaCEx}
#
{aaCR0} where x =:
• 0 to disable spectrum invert
• 1 to enable spectrum invert where x =:
• 0 to disable External 10MHz ref signal
• 1 to enable External 10MHz ref signal
Just # sign
{CR and zero}
2016-25 Manual, Rev. L Page 7 09/15/15
1.4 Environmnetal Use Information
A. Rack-Mounting - To mount this equipment in a rack, please refer to the installation instructions located in the user manual furnished by the manufacturer of your equipment rack.
B. Mechanical Loading - Mounting of equipment in a rack should be such that a hazardous condition does not exist due to uneven weight distribution.
C. 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.
D. 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 units may be required.
E. Circuit Overloading - Consideration should be given to the connection of the equipment to the supply circuit and the effect that overloading of circuits could have on over current protection and supply wiring.
Appropriate consideration of equipment name plate rating should be used, when addressing this concern.
F. Reliable Earthing - Reliable earthing of rack-mounted equipment should be maintained. Particular attention should be given to supply connections other than direct connection to the Branch
(use of power strips).
G. Top Cover - There are no serviceable parts inside the product so, the Top Cover should not be removed.
If the Top Cover is removed the ground strap and associated screw MUST BE REINSTALLED prior to Top Cover screw replacement. FAILURE TO DO this may cause INGRESS and/or EGRESS emission problems.
2016-25 Manual, Rev. L Page 8 09/15/15
2.0 Installation
2.1 Mechanical
The 2016-25 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 2016-25 can be secured to a rack using the 4 holes on the front panel. Figure 2.1 shows how the 2016-25 is assembled.
POWER
SUPPLY
FIGURE 2.1 Model 2016-25 Downconverter Assembly
2016-25 Manual, Rev. L Page 9 09/15/15
2.2 Rear Panel Input/Output Signals - Figure 2.2 shows the input and output connectors on the rear panel.
AC - POWER IN
AC input for switching power supply.
100-240 ±10% VAC,
47-60 Hz.
AC
GND
2000-2500 MHz input
-70 to -20 dBm, BNC female.
see Table 2.2.
RF IN
J1 - IF OUT
-70 MHz, -20 dBm output.
75 Ω , BNC (female) - see
Table 2.2 for other options.
J10 - MONITOR AND CONTROL
DB9 female connector see Table 2.1
J2 J1
J18 - 10 MHz REF OUTPUT (option -E)
10 MHz reference output, 0 ±3 dBm,.
75 Ω BNC female connector.
IF OUT 10 MHZ REF
OUTPUT
J18
MONITOR
AND
CONTROL
5 4
9 8
3
7
2
6
1
J10
10 MHZ
EXT REF
INPUT
J3 J20
J3 - 10 MHz EXT REF INPUT (Option -E)
10 MHz external reference input
0 ± 3 dBm, 75 ohms,
BNC female connector.
J20 - ETHERNET
CONNECTION
RJ45 Ethernet Connector
FIGURE 2.2 2016-25 Downconverter Rear Panel Inputs/Outputs
6
7
4
5
Pin
1
2
3
8
9
Description
Rx-
Rx+ (RS-232C)
Tx+ (RS-232C)
Tx-
Ground
Alarm Relay - Common
Alarm Relay - Normally Open
Output Level Detector, 0 to +5 VDC (option W1 ONLY)
Alarm Relay - Normally Closed
*Interface: DB-9 Female; Protocol: RS-485, RS-422, or RS-232C (selectable), 9600 baud rate, no parity, 8 data bits, 1 start bit, 1 stop bit
Option
STD
B
D
N
M
SS
IF
BNC, 50Ω
BNC, 75Ω
BNC, 50Ω
BNC, 75Ω
BNC, 50Ω
SMA, 50Ω
RF
BNC, 50Ω
BNC, 75Ω
BNC, 50Ω
Type N, 50Ω
Type N, 50Ω
SMA, 50Ω
Option W1 Level Detector - Provides 0 to +5 VDC level indication for -60 to -30 dBm 70 MHz output. The
DC voltage comes out on pin 8 of the DB9 connector, J10, with pin 5 being ground. The impedance of the 0 to
+5 VDC level indication signal is 1k Ω. The relation between the change in output level and the change in DC voltage is linear.
2016-25 Manual, Rev. L Page 10 09/15/15
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.
S1 - MENU/EXECUTE BUTTON
Press this to get into Program mode and to execute any changes.
ALARM REMOTE POWER
DS3 - ALARM LED
Red LED indicates downconverter alarm.
F = 2250
G = +10.0
MENU
EXECUTE
S2 - VERT. TOGGLE
Vertical toggle switch that controls values in the Menu items when in program mode. Does not function in the normal display mode
S3 - HORIZ. TOGGLE
Horizontal toggle switch that controls which values are being adjusted. Does not function in the normal display mode
FIGURE 2.3 2016-25 Front Panel Controls and Indicators
2016-25 Manual, Rev. L Page 11 09/15/15
2.4 Installation / Operation
2.4.1 Installing and Operating the 2016-25, Downconverter Section
1. Connect a -70 dBm to -20 dBm signal to RF In, J2 (Figure 2.2)
2. Connect the IF OUT, J1, to the external equipment
3. Connect 100-240 ±10% 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 0.0 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).
6. Be sure DS6 (green, DC Power) is on and DS2 (red, Alarm) is off (Figure 2.3).
7. AC Fuse - The fuse is a 5 mm X 20 mm, 2 amp slow blow (Type T) and is inserted in the far slot in the drawer below the AC input as shown in Figure 2.3. There is a spare fuse in the near slot.
If a fuse continues to open, the power supply is most likely defective.
FUSE DRAWER
SPARE FUSE
AC Fuse - 2 amp slow blow (Type T),
5 mm X 20 mm
INPUT
~
100-240± 10%VAC
47-63 Hz
2A MAX
FUSE
TYPE T 2A GDC
250 VOLT
FOR 100 - 240 V~
FIGURE 2.4 Fuse and Spare Fuse Locations
2016-25 Manual, Rev. L Page 12 09/15/15
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 2.5):
Power Up
Normal Display
Menu 1
Menu 2
Menu 3
Menu 4
Menu 5
Menu 6
Menu 7
Menu 8
Frequency in MHz
Gain (0 to +50 dB)
Set Unit to Remote Operation (Note: the local controls still function when in REMOTE)
Select Non-inverting or Inverting Spectrum
Select External 10 MHz Ref (option E)
Select 10 MHz Output (option E)
Select RS232, RS422, or RS 485 Remote Operation (option Q)
Select Remote Address for Unit (RS485 only) (option Q)
Save Menu When “R” is selected in any above menu or the next menu item after Menu 8
Alarm indications appear on the LEDs (see figure 2.2).
All program changes must start with the operation of the Menu/Execute switch and must also end with the operation of the Menu/Execute switch verified by the “Save Settings?” Menu. If this sequence is not followed, none of the changes will take effect. If programming is initiated and no operator action takes place for approximately 12 seconds (before the final press of the Menu/Execute switch) the display will revert to its previous status and you will need to start over.
2016-25 Manual, Rev. L Page 13 09/15/15
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.
2.5.3 Control Switches
1. Menu/Execute - Any change to the programming of the unit must be initiated by pressing the
Menu/Execute switch and completed by pressing the Menu/Execute switch.
2. Horizontal Switch - This switch is mounted so its movement is horizontal and moves the cursor left or right.
3. Vertical Switch - This switch is mounted so its movement is vertical and has two functions:
A. During frequency, gain changes, the vertical movement will raise or lower the selected number in the direction of the arrows.
B. For other functions, the vertical switch will alternately turn the function on or off regardless of the direction operated.
2016-25 Manual, Rev. L Page 14 09/15/15
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 2.5 for the sequence of menu options. The following display is for changing the downconverter frequency:
F = 2250 R
Pressing the Up/Down switch down will toggle the display to:
F = 2350 R
By using the horizontal rocker switch the cursor can be moved left or right .
F = 2350 R
NOTE: CHANGES DO NOT TAKE PLACE ON FREQUENCY UNTIL YOU GO TO THE SAVE
MENU AND INDICATE YOU WANT TO SAVE THE CHANGES. THE CARRIER IS MUTED
WHEN FREQUENCY IS CHANGED.
When the display indicates the value desired you can push the Menu/Execute switch to the next item:
G = +00 R
OR you can scroll to “R”, push the Menu/Execute switch to get to:
SAVE SETTINGS?
Y N
Selecting Y will save the new settings. Selecting N will revert to the previous settings.
Pushing the Menu/Execute switch then takes you to the default display:
F=2350 G=+00
Figure 2.5 shows all the menu items and how to make changes.
2016-25 Manual, Rev. L Page 15 09/15/15
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.
To change the GAIN, first push the Menu/Execute switch to get to the gain setting:
Operate the Menu/Execute switch until you get to the menu item you want to change (see Figure 2.5 for the sequence of menu options).
NOTE: CHANGES TAKE PLACE ON GAIN IMMEDIATELY BUT DO NOT GET SAVED UNTIL
YOU GO TO THE SAVE MENU AND INDICATE YOU WANT TO SAVE THE CHANGES.
Press the Up/Down switch to change the level in 1 dB steps and then push the Menu/Execute switch to get to the Gain setting:
G = +00 R
Press the Up/Down switch to change the gain in 1 or 10 dB steps:
G = +10 R
By using the horizontal rocker switch the cursor can be moved left or right. Pressing the Up/Down switch down will toggle the display digit selected until you have the desired gain.
NOTE: THE GAIN WILL BE CHANGED AS YOU ADJUST THE NUMBERS. HOWEVER, THE
VALUE WILL NOT BE STORED UNTIL YOU INDICATE YES IN THE SAVE SETTINGS
WINDOW. DO NOT SET A GAIN THAT WOULD EXCEED 0 dBm OR HAVE LESS THAN -20 dBm
OUTPUT LEVEL. THE FIRMWARE PREVENTS YOU FROM THIS.
When the display indicates the value desired you can push the Menu/Execute switch to the next item
OR you can scroll to “R”, push the Menu/Execute switch to get to:
SAVE SETTINGS?
Y N
Selecting Y will save the new settings. Selecting N will revert to the previous settings.
Pushing the Menu/Execute switch then takes you to:
F = 2250.000
G = +30.0
Figure 2.5 gives the menu items and how to make changes
2016-25 Manual, Rev. L Page 16 09/15/15
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.
Power Up
ON POWER UP
REV 1.00
Normal Display
Menu 1 Up Frequency
Menu 2 Down Gain (0 to +50)
Menu 3 Set Unit to Remote
Operation
Menu 4 Select Non-inverting or
Inverting Spectrum
Menu 5 Select External 10 MHz
Reference (option E)
Menu 6 Select 10MHz Output
(option E)
Menu 7 Select RS232, RS422, or
RS485 remote control (option Q)
Menu 8 Select remote address for unit (RS485 only) (option Q)
Save? When “R” is selected from any menu above, or at the end
NORMAL DISPLAY
F = 2250
G = +00
PUSHING MENU/EXECUTE SEQUENCE
F = 2250 R
G = +00
REMOTE OFF
DNSPECTRUM NON
EXT REF OFF
DN REF OUT OFF
R
R
R
R
R
RS232 R
ADDRESS = 00 R
SCROLL <>
SCROLL
SCROLL <>
SCROLL
SCROLL <>
SCROLL
SCROLL <>
SCROLL
SCROLL <>
SCROLL
SCROLL <>
SCROLL
SCROLL <>
SCROLL
SCROLL <>
SCROLL
SAVE SETTINGS? Y N
SCROLL <>
PUSH BUTTON
PUSH BUTTON
PUSH BUTTON
PUSH BUTTON
PUSH BUTTON
PUSH BUTTON
PUSH BUTTON
PUSH BUTTON
PUSH BUTTON
PUSH BUTTON
FIGURE 2.5 Menu Display and Sequence
2016-25 Manual, Rev. L Page 17 09/15/15
C ROSS T ECHNOLOGIES, 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 [email protected]
Printed in USA • 2011
2016-25 Manual, Rev. L Page 18 09/15/15
