Cross Technologies 1200-05 Instruction Manual
Instruction Manual
Model 1200-05
IF Processor
October 2010, Rev. 0
GAIN
MODEL 1200
IF PROCESSOR
T3R1 R2 R3 T1 T2
DCOVERRIDELOCALDIG2FDMDIG1
CROSS TECHNOLOGIES, INC.
RX
IF MON
DIG1
SW1
FDM
SW2
ONONON
DIG2
SW3 SW4 J2J1
LOCAL
REMOTE
TX
IF MON
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 info@crosstechnologies.com
INSTRUCTION MANUAL
1200-05 IF Processor, Filtered AGC Detection, 70 ±0.2 MHz
TABLE OF CONTENTS PAGE
Warranty 2
1.0 General 3
1.1 Equipment Description 3
1.2 Technical Characteristics 4
2.0 Installation 5
2.1 Mechanical 5
2.2 Rear I/O’s, Control 6
2.3 Front Panel I/O’s, Indicators 6
2.4 Operation 7
1.3 Environmental Use Information 9
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
1200-05 Manual, Rev. 0 Page 2 10/14/10
(770) 886-8005
FAX (770) 886-7964
Toll Free 888-900-5588
WEB www.crosstechnologies.com
E-MAIL info@crosstechnologies.com
1200-05 IF Processor, Filtered AGC Detection, 70 ±0.2 MHz
(
)
(
)
(
)
(J1)
1.0 General
1.1 Equipment Description - The 1200-05 IF Processor has a transmit and receive side. The receive side signal passes through an
Automatic Gain Control (AGC) amplifier (using a narrow SAW filter prior to the AGC detection circuitry so only energy at 70 ±0.2 MHz
automatically controls the gain; if there is no energy in this region it will go to max gain in AGC). The output is split into three signals each
having variable attenuators to adjust levels via front panel multi-turn potentiometers. The AGC amplifier adjusts a -95 to -15 dBm,
50 to 90 MHz IF input signal to a -30 dBm, +5, -15 dB output. A front panel connector provides a monitor signal directly out of the AGC
amplifier, and front panel potentiometers adjust the attenuation (between 0 and 20 dB) to each of the three output signals, DIG1RX, FDMRX,
and DIG2RX.
The transmit side has three transmit IF signals combined into one. DIG1TX, FDMTX, and DIG2TX signals each pass through individual
attenuators controlled via front panel potentiometers and a switch that is controlled remotely through a DB9 connector or locally with three SPDT
switches located on the front panel. A SPDT switch on the front panel selects either REMOTE or LOCAL operation. A local override feature is
included such that when the REMOTE/LOCAL switch is left in the LOCAL position, the override
pin on the DB9 can be set to override the LOCAL control and allow for REMOTE control.
DIG1 and DIG2 on both transmit and receive sides are 75Ω in/out while FDM on both transmit and receive sides are 50Ω in/out.
When power is removed from the 1200-05, the FDM TX and FDMRX signals pass through to the output. IF connectors are TNC female. The
1200-05 is housed in a 1RU x 14” deep chassis and powered by a 100-240 ±10% VAC, 47-63 HZ input power supply.
GAIN
CONTROL
MODEL 1200
IF PROCESSOR
T3R1 R2 R3 T1 T2
DC
CROSS TECHNOLOGIES, INC.
FDM
DIG1
RX OUT
RX
OUT
DIG2
RX OUTRXIF IN
RX
IF MON
AC IN
GND
DIG1
SW1
FDM
SW2
DIG2
SW3 SW4 J2J1
DIG1
TX
TX
LOCAL
ONONON
REMOTE
IF MON
OVERRIDELOCALDIG2FDMDIG1
FRONT
FDM
DIG2
TX
IN
IN
TX INTXIF OUT
J101
J102
J103 J104
J105
REAR
FIGURE 1.1 Model 1200-05 Front and Rear Panels
RX
IF MON
S
P
L
I
T
T
E
R
S
P
L
I
T
T
E
R
RX
IF IN
(J109)
DIG1
TX IN
J101
FDM
TX IN
J102
DIG2
TX IN
(J103)
ATT
ATTEN
T1
ATTEN
T2
ATTEN
T3
70 MHZ
SAW BP
AGC CONTROL
ATT
1200-05 Block Diagram
S
P
L
I
T
T
E
R
C
O
M
B
I
N
E
R
ATTEN
R1
ATTEN
R2
ATTEN
R3
J106
TX
IF OUT
J104
TX
IF MON
(J2)
J107
DIG1
RX OUT
(J106)
FDM
RX OUT
(J107)
DIG2
RX OUT
(J108)
J108 J109
1200-05 Manual, Rev. 0 Page 3 10/14/10
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