Cross Technologies 1200-88 Instruction Manual

Instruction Manual

Model 1200-88

IF Amplifier

August 2010 Rev. A

MODEL 1200

G1=-10 LVL1=<+5
G2=+15 LVL2= +12

REMOTECH2

CH1

PEAK

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.

POWER ALARM

PEAK

MENU

EXECUTE

AMPLIFIER

CROSS TECHNOLOGIES INC.

CROSS TECHNOLOGIES, INC.

6170 Shiloh Road

Alpharetta, Georgia 30005

[phone]

FAX [phone]

Toll Free 888-900-5588

WEB: www.crosstechnologies.com

E-MAIL: [e-mail]

INSTRUCTION MANUAL

MODEL 1200-88 Dual IF Amplifier

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

2.0 Installation 7

2.1 Mechanical 7

2.2 Rear Panel Inputs & Outputs 8

2.3 Front Panel Controls & Indicators 9

2.4 Operation 10

2.5 Menu Settings 11

3.0 Environmental Use Information 14

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

[phone]

FAX [phone]

Toll Free 888-900-5588

WEB: www.crosstechnologies.com

E-MAIL: [e-mail]

1200-88 Manual, Rev. A Page 2 8/18/10

MODEL 1200-88 Dual IF Amplifier

1.0 General

1.1 Equipment Description

The 1200-88 IF Amplifier is a dua l channel amplifier each providing manual gain control (MGC) for a 0.1 to
100 MHz IF signal for a -50 to 0 dBm input signal. The gain can be manually adjusted from -25 to +25 dB for
up to a +10 dBm output. The 1200-88 has a band limiting lowpass filter. Multi-function push button switches
select the gain of each channel (-25 to +25 dB, selectable in 1 dB steps) and the settings appear on the LCD
display. Front panel LEDs light when DC power is applied (green) or the output level exceeds +13 dBm (red).
Connectors are BNC female for IF input and output. A DB9 c onnector provides indication and remote control
of gain via a 9600 baud, RS232C interface. The 1200-88 is powered by a 100-240 ±10% VAC switching power
supply and is housed in a 1RU x 16” deep chassis.

MODEL 1200

AMPLIFIER

INPUT

J4 J5J1

CROSS TECHNOLOGIES INC.

OUTPUT

CH1

PEAK

AC

POWER ALARM

PEAK

GND

G1=-10 LVL1=<+5
G2=+15 LVL2= +12

REMOTECH2

MENU

EXECUTE

FRONT PANEL

INPUT

J2

CHANNEL 1 CHANNEL 2

OUTPUT

MONITOR

AND

CONTROL

J10

15 234

6789

REAR PANEL

FIGURE 1.1 Front and Rear Panels

IF 1

IN

PK LED 1

IF 2

IN

ATT ATT

PK LED 2

ATT ATT

CONTROLLER

FIGURE 1.2 Block Diagram

PK

Alarm1

PK

Alarm2

IF 1

OUT

IF 2

OUT

1200-88 Manual, Rev. A Page 3 8/18/10

1.2 Technical Characteristics

TABLE 1.0 1200-88 Dual IF Amp Specifications (each amp)*
Input Characteristics

Impedance 50

Return Loss 18 dB
Frequency 0.1 to 100 MHz
Input Level -50 to 0 dBm
Input 1 dB compression +5 dBm @ min. gain

Output Characteristics

Impedance 50

Return Loss 18 dB
Output level +10 dBm, max.
Output 1 dB compression +15 dBm

Channel Characteristics

Gain range (adjustable) -25 to +25 dB (Front Panel Adjustable)

Frequency Response ±1.0 dB, 0.1-100 MHz; ±0.5 dB, any 20 MHz segment

Group Delay, max. ±2 ns, max. 0.1 to 100 MH

Controls, Indicators

Level Adjust pushbutton switches or REMOTE; setting shown on LCD display;

Set to -25 to +25 dB (+10 dBm max. out)

Level Peak Red LED lights when output level exceeds +13 dBm
Power Green LED
Remote Yellow LED

Alarm Red LED

Other

IF Connector BNC (female)
Alarm/Remote Connector DB9 - NO or NC contact closure on Alarm; M&C 9600 Baud, RS232C
Size 19 inch, 1RU standard chassis 1.75” high X 16.0” deep
Power 100-240 ±10% VAC, 47-63 Hz, 45 watts max.

Options

Q RS-422/RS-485 Remote capability
Connector options see TABLE 2.2

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

1200-88 Manual, Rev. A Page 4 8/18/10

1.3 Monitor and Control Interface

J10 Pinouts

Pin Function

Table 1.1 1200-88 Status Reequests

Command Syntax* Description

* PLEASE NOTE: The Address (aa) should only be used when RS-485 is selected.

A) Remote serial interface
Protocol: RS-232C, 9600 baud rate, no parity, 8 data bits, 1 start bit, and 1 stop bit.

Connector: Rear panel, DB-9 male.

1Rx­2 Rx+ (RS-232C)
3 Tx+ (RS-232C)
4Tx­5GND
6 Alarm Relay: Common
7 Alarm Relay: Normally Open
8Not Used
9 Alarm Relay: Normally Closed

B) Status Requests - Table 1.1 lists the status requests for the 1200-88 and briefly describes them.

Command Status {aaS0} Returns {aaS0bbbcccddddeeeefg} where:

• bbb = GAIN 1 (range -25 to +25 dB)

• ccc = GAIN 2 (range -25 to +25 dB)

• dddd = LEVEL 1 (range <+5, +5, +6,..., +14, +15, >+15)

• eeee = LEVEL 2 (range <+5, +5, +6,..., +14, +15, >+15)

• f = 0 if NO CH1 peak alarm
= 1 if CH1 peak alarm

• g = 0 if NO CH2 peak alarm
= 1 if CH2 peak alarm

1200-88 Manual, Rev. A Page 5 8/18/10