Cross Technologies 2016-25 User manual

Instruction Manual Model 2016-25

Downconverter

July 2022, Rev. M

EXECUTE

MODEL 2016

F = 2250.000

G = +10

POWER

ALARM

DOWNCONVERTER

REMOTE

CROSS TECHNOLOGIES INC.

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.

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 [email protected]

Instruction Manual

MODEL 2016-25 Downconverter

TABLE OF CONTENTS PAGE

Warranty 2

1.0 General 3

1.1 Equipment Description 3

1.2 Technical Characteristics 4

1.3 Monitor & Control Interface 5

1.4 Environmental Use Information 8

2.0 Installation 9

2.1 Mechanical 9

2.2 Rear Inputs/Outputs 10

2.3 Front Panel Controls, Indicators 11

2.4 Operation 12

2.5 Menu Settings 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.

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 [email protected]

2016-25 Manual, Rev. M Page 2 07/18/22

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.

EXECUTE

MODEL 2016

F = 2250.000

G = +10

POWER

ALARM

DOWNCONVERTER

REMOTE

CROSS TECHNOLOGIES INC.

FRONT PANEL

GND

J10

J18

RF IN

10 MHZ REF

10 MHZ

AND

MONITOR

EXT REF

CONTROL

IF OUT

OUTPUT

INPUT

DS8

J20

REAR PANEL

FIGURE 1.1 Model 2016-25 Front and Rear Panels

MHz

OUT

2.0

2.5

GHz

CONTROLLER

F=2250 G=+10

EXT

10 MHz*

INT/EXT

10 MHz

INT

10 MHz

VAR

ATT

FIGURE 1.2 Model 2016-25 Downconverter Block Diagrams

2016-25 Manual, Rev. M Page 3 07/18/22

1.2 Technical Characteristics

2016-25 Manual, Rev. M Page 4 07/18/22

Channel Characteristics

Synthesizer Characteristics

1.0 MHz (0.5 MHz to 1 kHz step options available)

Frequency Step

Inverting or Non-inverting (selectable)

Frequency Sense

0.015 ns/MHz parabolic; 0.05ns/MHz linear; 1 ns ripple

Group Delay, max.

<-45 dBC, in band

Spurious Response

±1.5 dB, 2.0 - 2.5 GHz; ±0.5 dB, 36 MHz BW

Frequency Response

3 dBm ± 3 dB, (option - E)

10 MHz In/Out Level

± 1.0 ppm internal reference (+0.01 ppm, option H)

Frequency Accuracy

> 50 dB, min.

Image Rejection

0.0 to +50.0 dB

Gain Range (adjustable)

Other Esterbal

100-24 ±10% VAC, 47-63 Hz, 45 watts max. (24 and 48 VDC Optional)

Power

19 inch, 1RU Standard Chassis 1.75” high X 16.0” deep

Size

DB9 (female) - NO or NC contact closure on Alarm

Alarm / Remote Connector

BNC (female) 75Ω, works with 50 or 75 ohms (option E)

10 MHz Connectors

50ΩBNC (female), 75ΩBNC (female)

RF, IF Connectors

Controls, Indicators

RS232C, 9600 baud (RS485, Ethernet Optional)

Remote

Direct readout LCD; manual or remote selection

Frequency / Gain Selection

Green LED, Red LED, Yellow LED, Red LED

Power, Alarm, Remote, Mute

TABLE 1.1 2016-25 Downconverter Specifications*

15 dB (Maximum Gain)

Noise Figure, Maximum

-70 to -20 dBm

Level Range

2.0 to 2.5 GHz

Frequency

-15 dBm

Output 1 dB Compression

-30 to -20 dBm

Output Level

Output Characteristics (IF)

Input Characteristics (RF)

70 ±18 MHz

Frequency

75Ω/ 18 dB

Impedance / Return Loss

50Ω/ 12 dB

Impedance / Return Loss

Available Options

1 kHz Step, includes Option -H

125 kHz Step Size

0.5 MHz Frequency Steps

High Stability (± 0.01ppm) internal ref.

See Table 2.2 - PG 10

Connector/Impedance

- X1004

- X

- 5

- H

External 10 MHz Ref. Input & Output

- E

*+0 to +50 degrees C; Specifications subject to change without notice.

Cross Technologies, Inc. 2015

Communication Interface/Std. RS232

Ethernet; with Web Browser & SNMP

- W18

Ethernet; with TCP/IP, Telnet®

Ethernet; with Web Browser

- W28

- W8

RS485 Remote Interface

- Q

-105

-95

-80

-70

-55

100K

10K

100

Standard-1 MHz Steps: dBC/Hz

Phase Noise @ F (Hz) >

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)

Female DB-9

PC Com Port

Male DB-9

2015/16/17 M&CPort

M&C Cable Diagram - Cross Technologies Frequency Converters

Connector: Rear panel, DB-9 male

J10 Pinouts (RS-232C/422/485)

Pin Function

1 Rx-

2 Rx+ (RS-232C)

3 Tx+ (RS-232C)

4Tx-

5GND

6 Alarm Relay: Common

7 Alarm Relay: Normally Open

8 Not Used

9 Alarm Relay: Normally Closed

2016-25 Manual, Rev. M Page 5 07/18/22

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.

TABLE 1.1 2016-25 Status Requests

Command Syntax* Description

Command Status {aaS1} 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

10MHz Ref Status {aaS2} Returns {S2E} where:

(option E only) • E = 1 - external 10 MHz switched in

IF Frequenncy Select Status {aaSY} Returns {SYx} where:

(option W140/70 only) • x=0 - 70 MHz, x=1 - 140 MHz

2016-25 Manual, Rev. M Page 6 07/18/22

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.

Table 1.2 2016-25 Commands

Command Syntax* Description

Set Receiver Frequency {aaC2xxxx} where:

• xxxx = 4 characters standard -

(7 characters - Option-X) (5 characters - Option-5)

• Range: 2000 to 2500 MHz

Set Receiver Gain {aaC4xx} where:

• xx = 2 characters

• Range: 00 to 50 (0 dB to +50 dB, in 1 dB steps)

Enable Spectrum Invert {aaC7x} where x =:

• 0 to disable spectrum invert

• 1 to enable spectrum invert

Enable External 10MHz IN {aaCEx} where x =:

(option E only) • 0 to disable External 10MHz ref signal

• 1 to enable External 10MHz ref signal

IF Frequency Select {aaCYx} where x =:

(option W140/70 only) • 0 to select 70 MHz

• 1 to select 140 MHz

Enable Remote # Just # sign

Disable Remote {aaCR0} {CR and zero}

2016-25 Manual, Rev. M Page 7 07/18/22

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. M Page 8 07/18/22

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. M Page 9 07/18/22

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.

2000-2500 MHz input

-70 to -20 dBm, BNC

female.

see Table 2.2.

J1 - IF OUT

-70 MHz, -20 dBm output.

75Ω, BNC (female) - see

Table 2.2 for other options.

J10 - MONITOR AND CONTROL

DB9 female connector

see Table 2.1

J3 - 10 MHz EXT REF INPUT (Option -E)

10 MHz external reference input

0 ± 3 dBm, 75 ohms,

BNC female connector.

J18 - 10 MHz REF OUTPUT (option -E)

10 MHz reference output, 0 ±3 dBm,.

75ΩBNC female connector.

GND

J10

J18

RF IN

10 MHZ REF

10 MHZ

AND

MONITOR

EXT REF

CONTROL

IF OUT

OUTPUT

INPUT

J20

J20 - ETHERNET

CONNECTION

RJ45 Ethernet Connector

FIGURE 2.2 2016-25 Downconverter Rear Panel Inputs/Outputs

Table 2.1 J10 Pinouts (RS-485/RS-422/RS-232C)*

Pin Description

1 Rx-

2 Rx+ (RS-232C)

3 Tx+ (RS-232C)

4Tx-

5 Ground

6 Alarm Relay - Common

7 Alarm Relay - Normally Open

8 Output Level Detector, 0 to +5 VDC (option W1 ONLY)

9 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

TABLE 2.2 IF/RF Connector Options

Option IF RF

STD BNC, 50ΩBNC, 50Ω

BBNC, 75ΩBNC, 75Ω

DBNC, 50ΩBNC, 50Ω

NBNC, 75ΩType N, 50Ω

MBNC, 50ΩType N, 50Ω

SS SMA, 50ΩSMA, 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 1kΩ. The relation between the change in output level and the change in DC

voltage is linear.

2016-25 Manual, Rev. M Page 10 07/18/22

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