Instruction Manual

Model 284-19

RF Splitter

January 2012, Rev. C

C

ROSS

T

ECHNOLOGIES, INC.

284 SPLITTER

LNB VOLTAGE POWER

RF MONITOR ON GND +DC ON

DC

J12

LNB FUSE F1

C

ROSS

T

ECHNOLOGIES, INC.

IN J9

OUT J1 OUT J2 OUT J3 OUT J4

OUT J8 OUT J7 OUT J6 OUT J5

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. Printed in USA.

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 284-19 RF Splitter

TABLE OF CONTENTS

Warranty

1.0 General

1.1 Equipment Description

1.2 Technical Characteristics

2.0 Installation

2.1 Mechanical

2.2 Rear Panel Input/Output Connectors

2.3 Front Panel Monitors and Indicators

2.4 Operation

2.5 Rack Mounting

3.0 Environmental Use Information

6

7

7

5

5

6

8

PAGE

2

3

3

4

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.

284-19 Manual, Rev C

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 01/18/12

MODEL 284-19 RF Splitter

1.0 General

1.1 Equipment Description - The Model 284-19 is a nine way, 0.95 - 2.1 GHz, 0 dB gain splitter in a 4.7”W x

1.75”H x 6.5”D bench top chassis (or mounted on an optional 1 Rack Unit panel) with a 115 VAC wall power supply. The splitter provides fused DC power insertion on the RF input connector center pin, surge protection, and excellent RF characteristics. The splitter has a monitor connector on the front panel and eight outputs on the back panel. The 115 VAC wall power supply provides a +18 VDC voltage for internal amplifiers and for DC to power an external amplifier (often Low Noise Block converters or LNBs) through a DC power inserter. The

LNB power line is separately fused. A surge suppressor on the splitter input protects against high voltage transients. All splitter outputs are AC coupled so no DC appears on their center conductors. On the front panel, a green LED indicates the presence of +18 VDC at the LNB power supply output and DC voltage test points allow monitoring this voltage with a voltmeter. Presence of power from the +18 VDC wall power supply is shown by the green AC Power LED. Up to three 284’s can be mounted on an optional 1 3/4”x 19” rack mount panel (option R1, R2, or R3).

C

ROSS

T

ECHNOLOGIES, INC.

284 SPLITTER

LNB VOLTAGE POWER

RF MONITOR ON ON GND +DC

FRONT

DC

J12

LNB FUSE F1

C

ROSS

T

ECHNOLOGIES, INC.

IN J9

OUT J1 OUT J2 OUT J3 OUT J4

OUT J8 OUT J7 OUT J6 OUT J5

REAR

FIGURE 1.1 MODEL 284-19 Front and Rear Panels

C

ROSS

T

ECHNOLOGIES, INC.

284 SPLITTER

LNB VOLTAGE POWER

RF MONITOR ON GND +DC ON

C

ROSS

T

ECHNOLOGIES, INC.

284 SPLITTER

LNB VOLTAGE POWER

RF MONITOR ON GND +DC ON

C

ROSS

T

ECHNOLOGIES, INC.

284 SPLITTER

LNB VOLTAGE POWER

RF MONITOR ON GND +DC ON

FIGURE 1.2 Three 284s Mounted on Optional -R3 Rack Panel

1 - 2

GHz

IN

SURGE

SUP-

PRESOR

DC

INS

FUSE

AMP

9 WAY

SPLIT

1 - 2 GHz OUT

OUT 1

OUT 2

:OUT3

OUT 8

MON

LNB PWR LED

LNB PWR TP

284-19 Manual, Rev C

FIGURE 1.3 Model 284-19 RF Splitter Block Diagram

Page 3 01/18/12

1.2 Technical Characteristics

TABLE 1.1 284-15 RF SPLITTER SPECIFICATIONS

Characteristics

Input Characteristics

Input Impedance/RL

Specifications*

Input Level

75 Ω /10dB, min, 0.95-2.05 GHz

12dB min.,14dB typical, 0.95-1.75 GHz

-20 dBm total maximum

Output Characteristics

Impedance/RL 75 Ω /10dB, min, 0.95-2.05 GHz

12dB min., 14 dB, typical 0.95-1.75 GHz

In-Band Characteristics

Gain

Frequency Response

Port to Port Isolation

Indicators

Power

LNB DC Voltage

+0 dB ± 1.0 dB

± 1.0 dB, 0.95 - 2.05 GHz; ± 0.5 dB, any 20 MHz increment

> 18 dB, min., 20 dB typical

Green LEDs indicate DC voltage prior to diode OR

Green LED indicates LNB power insertion on splitter input (J9)

Other

LNB DC Voltage

Output LNB Current

Surge Suppressor

RF Connectors

AC Power

Size, Bench Top

Size, Rack Mount (-R)

Options

-R1, -R2, or -R3

-C

-P2

-B

-D

-W9

Models

284-15

284-19

18 ±2 VDC

300 ma, max.

SiDACTOR

Type F (female)

115 VAC, 60 Hz, 10W max., wall power supply

4.7”W x 1.75”H x 6.5”D

19 inch standard chassis, 1.75” high X 7.0” deep

Rack Mounting (1RU)

No Wall Mount Power Supply (use Model 2000-02 Power Supply)

100-240 ±10% Vac Wall Mount Power Supply

75 Ω BNC RF Connectors

50 Ω BNC RF Connectors

10MHz pass through (J9 to J8)

One 5-way splitter

One 9-way splitter

*+10˚C to +40˚C; Specifications subject to change without notice.

284-19 Manual, Rev C Page 4 01/18/12

2.0 Installation

2.1 Mechanical - The 284-19 consists of one RF printed circuit board (PCB) housed in a 4.7”W x 1.75”H x

6.5”D bench top chassis. A 115 VAC, 60Hz wall power supply provides +18VDC power for the internal and external amplifiers and LEDs. RF connectors are type F, female. The 284-19 can also be secured to a rack using the four holes on the optional 1 RU chassis front panel. Figure 2.1 shows how the 284-19 is assembled. J11 connects DC Power to the fuses as shown and J12 connects the DC voltage from the power supply to the PCB as shown.

FIGURE 2.1 284-19 Mechanical Assembly

WALL POWER

SUPPLY

PIN 1, +18VDC

PIN 2, GROUND

POWER SUPPLY J12

2 1

1

2

FUSE

J11

PIN 1, LNB SIDE

PIN 2, +18VDC SIDE

284-19 Manual, Rev C Page 5 01/18/12

2.2 Rear Panel Input/Output Connectors

The input and output connectors on the rear panel are shown in Figure 2.2.

CAUTION! IF A FUSE IS INSTALLED IN THE LNB FUSE F1 HOLDER, +18 VDC WILL APPEAR ON

THE CENTER PIN OF THE SPLITTER INPUT CONNECTOR.

J12 - DC INPUT

+18VDC from wall power supply

LNB FUSE F1

F1 - LNB FUSE

1 Amp, Fast Blo, 1/4” Fuse

C

ROSS

T

ECHNOLOGIES, INC.

DC

J12

IN J9

OUT J1

OUT J8

OUT J2 OUT J3 OUT J4

OUT J7 OUT J6 OUT J5

J9 - SPLITTER INPUT

Type F, 75 Ω

CAUTION! +18 VDC ON

CENTER PIN WHEN FUSE F1

INSTALLED

10MHZ

Pass Through

(Option W9)

J1 to J8 - SPLITTER OUTPUTS

Type F, 75 Ω

Terminate when not used

FIGURE 2.2 284-19 Rear Panel

2.3 Front Panel Monitors and Indicators

Figure 2.3 shows the front panel monitors and indicators.

J10 - SPLITTER MONITOR

Type F, 75 Ω

Terminate when not used

TP2 - GROUND

Ground Test Point

TP1 - LNB VOLTAGE

Test Point which allows monitoring of the 18 ± 2 VDC present on J9.

C

ROSS

T

ECHNOLOGIES, INC.

RF MONITOR

284 SPLITTER

LNB VOLTAGE

ON GND +DC

POWER

ON

DS1 - LNB VOLTAGE LED

Green LED lights when LNB voltage is present on splitter input, J9.

DS2 - POWER LED

Green LED lights when power is applied to unit

FIGURE 2.3 284-19 Front Panel

284-19 Manual, Rev C Page 6 01/18/12

2.4 Operation

1.) Connect RF cables to the 284-19 (See Sections 2.2 and 2.3).

2.) IF DC VOLTAGE IS REQUIRED ON THE SPLITTER RF INPUT CENTER

CONDUCTOR, install a 1/4”, 1 amp fast blo fuse in LNB FUSE F1 holder.

CAUTION! IF A FUSE IS INSTALLED IN THE LNB FUSE F1 HOLDER, +18 VDC WILL APPEAR ON

THE CENTER PIN OF THE SPLITTER INPUT CONNECTOR.

3.) Connect the wall power supply to the DC J12 connector on the rear panel of the 284-19 and then to a 115 VAC, 60Hz power outlet, and observe that the POWER LED is lit on the front panel.

4.) Monitor the RF signal on the front panel monitor and DC voltage to the external amplifiers (Front panel Green LNB VOLTAGE LED should be lit if a LNB fuse is installed in the rear panel fuse holder) to insure proper signal and voltage.

NOTE: FOR OPTIMUM PERFORMANCE, THE MONITOR PORT AND SPLITTER OUTPUT PORTS

SHOULD BE TERMINATED WITH 75 Ω TYPE F TERMINATIONS WHEN NOT USED.

2.5 Rack Mounting - The 284-19 is packaged in an aluminum extrusion. The -R option is mounted on a 1

3/4” x 19” rack panel that can be mounted to a rack using the four holes at the ends. To mount a 284-19 unit to a rack panel, remove the four screws attaching the front panel to the extrusion, and then (using the same screws) reattach the front panel to the front of the rack panel with the extrusion (containing the PCB) on the other side of the rack panel (see Figure 2.5).

EXTRUSION

FRONT PANEL

C

ROSS

T

ECHNOLOGIES, INC.

284 SPLITTER

LNB VOLTAGE POWER

RF MONITOR ON GND +DC ON

RACK MOUNT PANEL (FOR -R MODELS ONLY)

FRONT SCREWS (4EA)

FIGURE 2.5 Rack Mounting The 284-19

284-19 Manual, Rev C Page 7 01/18/12

3.0 Environmental 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. (See figure 2.5)

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 unit 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.

284-19 Manual, Rev C Page 8 01/18/12

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

284-19 Manual, Rev C Page 9 01/18/12