CIC-35 LVDS to ASI
Interface Converter
Installation and Operation Manual
(Accessory Product for use only with Comtech EF Data CDM-600 Modems)
Part Number MN/CIC35.IOM
Revision 0
August 22, 2003
CIC-35 LVDS to ASI
(Accessory Product for use only with Comtech EF Data CDM-600/600L Modems)
Comtech EF Data is an ISO 9001
Registered Company.
Interface Converter
Installation and Operation Manual
Part Number MN/CIC35.IOM
Revision 0
August 22, 2003
Copyright © Comtech EF Data, 2001. All rights reserved. Printed in the USA.
Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, (480) 333-2200, FAX: (480) 333-2161.
CIC-35 LVDS to ASI Interface Converter Revision 0
MN/CIC35.IOM
CUSTOMER SUPPORT
Contact the Comtech EF Data Customer Support Department for:
Product support or training
Information on upgrading or returning a product
Reporting comments or suggestions concerning manuals
Contact Customer Support using any of the following methods:
Mail: Comtech EF Data
Email: service@comtechefdata.com
Customer Support Department
2114 West 7th Street
Tempe, Arizona 85281 USA
Phone: (480) 333-2200 (Main Comtech EF Data Number)
(480) 333-4357 (Customer Support Desk)
Fax: (480) 333-2161
Internet: www.comtechefdata.com
To return a Comtech EF Data product (in-warranty and out-of-warranty) for repair or
replacement:
1. Request a Return Material Authorization (RMA) number from the Comtech EF Data
Customer Support Department.
2. Be prepared to supply the Customer Support representative with the model number,
serial number, and a description of the problem.
3. To ensure that the product is not damaged during shipping, pack the product in its
original shipping carton/packaging.
4. Ship the product back to Comtech EF Data. (Shipping charges should be prepaid.)
For more information regarding the warranty policies, see Warranty Policy, p. vii.
ii
CIC-35 LVDS to ASI Interface Converter Revision 0
MN/CIC35.IOM
Table of Contents
CHAPTER 1. INTRODUCTION.................................................................................... 1
CHAPTER 2. INSTALLATION..................................................................................... 2
2.1 CONNECTOR OVERVIEW................................................................................................. 2
2.2 OVERHEAD INTERFACE CONNECTOR........................................................................ 3
2.3 ASI INTERFACE CONNECTORS...................................................................................... 4
CHAPTER 3. OPERATION.......................................................................................... 5
CHAPTER 4. TROUBLESHOOTING........................................................................... 6
4.1 LED Indicators........................................................................................................................ 6
CHAPTER 5. SPECIFICATIONS SUMMARY.............................................................. 7
iii
CIC-35 LVDS to ASI Interface Converter Revision 0
MN/CIC35.IOM
BOUT THIS MANUAL
A
This manual provides installation and operation information for the Comtech EF Data
CIC-35 LVDS to ASI Interface Converter. This is a technical document intended for
earth station engineers, technicians, and operators responsible for the operation and
maintenance of the CIC-35 LVDS to ASI Interface Converter.
RELATED DOCUMENTS
Comtech EF Data CDM-600 Digital Satellite Modem Installation and Operation Manual
Comtech EF Data CDM-600L Digital Satellite Modem Installation and Operation Manual
CONVENTIONS AND REFERENCES
CAUTIONS AND WARNINGS
Indicates information critical for proper equipment function.
IMPORTANT
Indicates a hazardous situation that, if not avoided, may result in minor or moderate
injury. CAUTION may also be used to indicate other unsafe practices or risks of
CAUTION
WARN ING
property damage.
Indicates a potentially hazardous situation that, if not avoided, could result in
death or serious injury.
TRADEMARKS
All product names mentioned in this manual may be trademarks or registered trademarks
of their respective companies and are hereby acknowledged.
REPORTING COMMENTS OR SUGGESTIONS CONCERNING THIS MANUAL
Comments and suggestions regarding the content and design of this manual will be
appreciated. To submit comments, please contact the Comtech EF Data Customer
Support Department.
iv
CIC-35 LVDS to ASI Interface Converter Revision 0
MN/CIC35.IOM
IMPORTANT INFORMATION - PLEASE READ
BEFORE INSTALLATION AND USE
S
AFETY NOTICES
ELECTRICAL SAFETY
The equipment is rated for operation at +12 volts DC. It has a maximum power
consumption of 2.4 watts. The power supply current is, in all circumstances, supplied by
a single Comtech CDM-600/600L Modem.
Observe the following instructions:
EQUIPMENT CONNECTION
The CIC-35 is designed for operation ONLY with Comtech CDM-600/600L Modems.
These Modems supply DC operating current (electronically fused and protected) and
control signals for the correct functioning of this unit. Connection to other
manufacturer’s equipment could result in damage to the unit.
ENVIRONMENTAL
The CIC-35 must not be operated in an environment where the unit is exposed to
temperature extremes outside the ambient range 0 to 50
humid atmospheres above 95% RH, altitudes (un-pressurised) greater than 2000 meters,
excessive dust or vibration, flammable gases, corrosive or explosive atmospheres.
Operation in vehicles or other transportable installations that are equipped to provide
stable environments are permitted. If such vehicles do not provide a stable environment,
safety of the equipment to EN60950 may not be guaranteed.
0
C, precipitation, condensation, or
v
CIC-35 LVDS to ASI Interface Converter Revision 0
MN/CIC35.IOM
ELECOMMUNICATIONS TERMINAL EQUIPMENT DIRECTIVE
T
In accordance with the Telecommunications Terminal Equipment Directive 91/263/EEC,
this equipment should not be directly connected to the Public Telecommunications
Network.
EMC (ELETROMAGNETIC COMPATIBILITY)
(PRELIMINARY) The CIC-35 is designed to comply with the following standards:
Emissions: EN 55022 Class B – Limits and methods of measurements of radio
interference characteristics of Information Technology Equipment.
FCC Part 15 Class B
Immunity: EN 50082 Part I – Generic immunity standard, Part I: Domestic,
commercial, and light industrial environment.
In order that the CIC-35 continues to comply with these standards, observe the following
instructions:
The equipment must be operated with its cover on at all times. If it becomes
necessary to remove the cover, the User should ensure that the cover is correctly refitted before normal operation commences.
The converter box must have good mechanical contact with the metal chassis of the
CDM-600/600L modem.
vi
CIC-35 LVDS to ASI Interface Converter Revision 0
MN/CIC35.IOM
WARRANTY POLICY
This Comtech EF Data product is warranted against defects in material and workmanship
for a period of two years from the date of shipment. During the warranty period,
Comtech EF Data will, at its option, repair or replace products that prove to be defective.
For equipment under warranty, the customer is responsible for freight to Comtech EF
Data and all related custom, taxes, tariffs, insurance, etc. Comtech EF Data is responsible
for the freight charges only for return of the equipment from the factory to the customer.
Comtech EF Data will return the equipment by the same method (i.e., Air, Express,
Surface) as the equipment was sent to Comtech EF Data.
LIMITATIONS OF WARRANTY
The foregoing warranty shall not apply to defects resulting from improper installation or
maintenance, abuse, unauthorized modification, or operation outside of environmental
specifications for the product, or, for damages that occur due to improper repackaging of
equipment for return to Comtech EF Data.
No other warranty is expressed or implied. Comtech EF Data specifically disclaims the
implied warranties of merchantability and fitness for particular purpose.
EXCLUSIVE REMEDIES
The remedies provided herein are the buyer's sole and exclusive remedies. Comtech EF
Data shall not be liable for any direct, indirect, special, incidental, or consequential
damages, whether based on contract, tort, or any other legal theory.
DISCLAIMER
Comtech EF Data has reviewed this manual thoroughly in order that it will be an easy-touse guide to your equipment. All statements, technical information, and
recommendations in this manual and in any guides or related documents are believed
reliable, but the accuracy and completeness thereof are not guaranteed or warranted, and
they are not intended to be, nor should they be understood to be, representations or
warranties concerning the products described. Further, Comtech EF Data reserves the
right to make changes in the specifications of the products described in this manual at
any time without notice and without obligation to notify any person of such changes.
vii
Chapter 1. INTRODUCTION
CIC-35
LVDS to ASI
Interface Converter
While the CDM-600/600L modem is capable of data rates up to 20 Mbps, its standard
interface is limited to RS-422, V.35 and RS-232 and LVDS formats only. In order to
accommodate the ASI format, a small converter box is available which attaches to the
rear of the modem at the 25-pin data connector. No external power is required.
1
CIC-35 LVDS to ASI Interface Converter Revision 0
MN/CIC35.IOM
Chapter 2. INSTALLATION
Power down the modem before installing the converter box and remove any coaxial
cables attached to the converter box.
Remove the four Philips head screws on the sides, and lift the cover off the CIC-35.
Attach the CIC-35 to the CDM-600/600L by mating the two pairs of 25-pin D-subs
together, then tighten the four captive screws (refer to the picture below).
Re-attach the cover and replace the four Philips head screws. The metal surfaces of the
modem and the CIC-35 should be flush.
2.1 CONNECTOR OVERVIEW
The rear panel connectors provide all the necessary external connections between the
modem and other equipment. Refer to the CDM-600/600L manual for more information.
2
CIC-35 LVDS to ASI Interface Converter Revision 0
MN/CIC35.IOM
2.2 OVERHEAD INTERFACE CONNECTOR
The overhead interface connector is a 25-pin D male
interface on the CIC-35.
Pin assignments are listed in the table below:
Pin # Signal Function Signal Name Direction
14 IDR 64 kbps ESC Tx Data + TX-422DAT-B In
2 IDR 64 kbps ESC Tx Data - TX-422DAT-A In
12 IDR 64 kHz ESC Tx Clock + TX-422CLK-B Out
15 IDR 64 kHz ESC Tx Clock - TX-422CLK-A Out
11 IDR 1 kHz Tx Octet Clock + TX-OCT-B Out
24 IDR 1 kHz Tx Octet Clock - TX-OCT-A Out
16 IDR 64 kbps ESC Rx Data + RX-422DAT-B Out
3 IDR 64 kbps ESC Rx Data - RX-422DAT-A Out
9 IDR 64 kHz ESC Rx Clock + RX-422CLK-B Out
17 IDR 64 kHz ESC Rx Clock - RX-422CLK-A Out
19 IDR 1 kHz Rx Octet Clock + RX-OCT-B Out
4 IDR 1 kHz Rx Octet Clock - RX-OCT-A Out
20 Balanced Ext. Ref. Clock + EXT-CLK-B In
23 Balanced Ext. Ref. Clock - EXT-CLK-A In
13 IBS ESC RS232 Tx Data TX-232-DATA In
22 IBS ESC RS232 Tx Clock TX-232-CLK Out
8 IBS ESC RS232 Rx Data RX-232-DATA Out
10 IBS ESC RS232 Rx Clock RX-232-CLK Out
5 IBS Tx High-Rate ESC Data TX-ASYNC In
6 IBS Rx High-Rate ESC Data RX-ASYNC Out
1 IDR Back Alarm 1 H/W input BW-IN1 In
18 IDR Back Alarm 2 H/W input BW-IN2 In
21 IDR Back Alarm 3 H/W input BW-IN3 In
25 IDR Back Alarm 4 H/W input BW-IN4 In
7 Signal Ground Ground -
3
CIC-35 LVDS to ASI Interface Converter Revision 0
MN/CIC35.IOM
2.3 ASI INTERFACE CONNECTORS
The ASI interface connectors are BNC type
connectors clearly labelled as IN or OUT.
4
CIC-35 LVDS to ASI Interface Converter Revision 0
MN/CIC35.IOM
Chapter 3. OPERATION
After applying power to the modem, make the following configuration changes to the
modem so that it will operate with the CIC-35.
• Program the transmit and receive data between 1 and 20 Mbps. Both
directions must use the same rate.
• Set the data interface type to LVDS. The modem operates in this electrical
format while the converter translates between LVDS and ASI.
• Set the transmit clocking to EXT. The Phase-Locked-Loop in the interface
converter recovers the byte clock and data on the transmit ASI signal and
reformats this to serial data and clock using LVDS format.
5
CIC-35 LVDS to ASI Interface Converter Revision 0
MN/CIC35.IOM
Chapter 4. TROUBLESHOOTING
The CIC-35 may take several seconds to acquire the input data stream. This is normal
since the clock recovery PLL is required to acquire the input clock over a decade range of
rates without prior knowledge of the input rate.
The ASI converter expects a 188 byte MPEG format at the input. The frame consists of a
sync byte (0x47) followed by 187 bytes of payload. The data rate programmed into the
CDM-600 / 600L is the serial data rate of the entire framed stream. So if the ASI stream
is 5 Mbps, the modem data rate is also programmed to 5 Mbps.
The converter also expects the input data to be a continuous stream rather than a bursty
format. Contact the factory if there are any questions about operation with bursty ASI
formats.
4.1 LED INDICATORS
There are two LED indicators on the CIC-35. The GREEN LED is the transmit side PLL
indicator lock. When the converter is locked to the incoming byte rate, this LED will be
lit.
Ensure that the modem is programmed to the incoming framed serial bit rate correctly as
indicated above. If the modem reports FIFO slips on the transmit side while the GREEN
LED is lit, the modem is most likely programmed to the incorrect data rate.
If the input ASI signal is absent or if the signal level is too low, the LED will be OFF,
and the CDM-600/600L modem will recognize this condition and respond with an active
alarm.
The red LED is a Receive Violation Symbol (RVS) indicator. When lit, it indicates that
the ASI receiver chip (transmit side) is seeing line code violations.
The serial stream in the ASI interface is encoded in an 8B/10B line encoding format. If
the receiver chip encounters any line code violations, a one-shot circuit will turn on the
RED LED for approximately one second. The primary cause of this condition is an ASI
signal that has experienced severe slope attenuation from excessively long cable runs.
Another is use of low quality coax cable or impedance mismatches. Though the interface
may run error-free with code violations, it is highly recommended that the anomalous
condition be corrected.
6
CIC-35 LVDS to ASI Interface Converter Revision 0
MN/CIC35.IOM
Chapter 5. SPECIFICATIONS
SUMMARY
Type DVB-ASI interface converter per EN 50083-9 plus overhead
connector for optional IBS / IDR overhead (modem option)
Operating
Modes
Data Rate 1 to 20 Mbps, symmetric only
ASI Connector BNC-F
Cable Length 150 meters, typical (Belden 8281)
Tx / Rx
Impedance
Frame Type 188 byte MPEG-2 Transport per DVB-ASI, continuous stream
Voltage Levels Unbalanced 800 mv pp typical
Overhead
Connector
Power Supply 2.8 Watts maximum, power from modem
Dimensions 1.6H x 2.5W x 4.7L inches
Approvals
(Planned)
Weight 0.4 lb
Temperature 0 to 50
Full duplex or simplex
75 Ohms 15 dB Return Loss, 5MHz to 270 MHz
25 pin D Male
+12 Vdc at 230 mA maximum (fused)
4.1H x 6.4W x 11.9L centimeters
EN 55022 Class B Emissions
EN 50082-1 (Immunity)
EN 60950 (Safety)
FCC Part 15 Class B
0.2 kg
o
C
7
METRIC CONVERSIONS
Units of Length
Unit
1 centimeter — 0.3937 0.03281 0.01094
1 inch 2.540 — 0.08333 0.2778
1 foot 30.480 12.0 — 0.3333
1 yard 91.44 36.0 3.0 —
Centimeter
Inch
Foot
Yard
Mile
6.214 x 10
1.578 x 10
1.893 x 10
5.679 x 10
Meter
-6
-5
-4
-4
0.01 — —
0.254 — 25.4
0.3048 — —
0.9144 — —
Kilometer Millimeter
1 meter 100.0 39.37 3.281 1.094
1 mile
1 mm — 0.03937 — — — — — —
1 kilometer — — — — 0.621 — — —
1.609 x 10
5
6.336 x 104 5.280 x 103 1.760 x 103
6.214 x 10
-4
—
— — —
1.609 x 103
1.609 —
Temperature Conversions
Unit
32° Fahrenheit
212° Fahrenheit
-459.6° Fahrenheit
° Fahrenheit
—
—
—
° Centigrade
0
(water freezes)
100
(water boils)
273.1
(absolute 0)
Formulas
C = (F - 32) * 0.555
F = (C * 1.8) + 32
Units of Weight
Unit
1 gram — 0.03527 0.03215 0.002205 0.002679 0.001
Gram
Ounce
Avoirdupois
Ounce
Troy
Pound
Avoir.
Pound
Troy
Kilogram
1 oz. avoir. 28.35 — 0.9115 0.0625 0.07595 0.02835
1 oz. troy 31.10 1.097 — 0.06857 0.08333 0.03110
1 lb. avoir. 453.6 16.0 14.58 — 1.215 0.4536
1 lb. Troy 373.2 13.17 12.0 0.8229 — 0.3732
1 kilogram
1.0 x 10
3
35.27 32.15 2.205 2.679 —
2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA
480 • 333 • 2200 PHONE
480 • 333 • 2161
FAX
Loading...