Features
• Compliant to IRIG 106 Chapter 10 recording format
• Available in compact compact 1U rack-mount design for lab applications as well as commercial, industrial, and MIL-SPEC packaging
• Supports one or two PCM streams to 60 Mbps each
• Handles IRIG A, B, or G input and output with microsecond time resolution
• Available with bit sync or direct data/clock input
• Records to CD, DVD, disk, tape, or network attached storage (NAS)
• Offers true read-after-write data integrity validation
• Provides independent and asynchronous record and reproduce operation
• Comes standard with dual-redundant power supplies and fans
• Includes gigabit Ethernet for control and data record pathing
Introduction
The Serial Data Recorder (SDR) establishes a new price/performance paradigm for PCM data recorders
and is our company’s forth-generation data recorder. In packages as small as 1U, the SDR offers the features that are mandatory for high-availability designs including hot-swap, dual-redundant power supplies and redundant fans that come with simple network management protocol (SNMP) alarm features and remote Ethernet control. Coupled with the flexibility and inter-industry support of the new IRIG Chapter 10 format, the SDR family is the ideal solution for high-rate PCM recording requirements.
Our SDR provides up to 60 Mbps operation speed for each PCM stream with either data/clock input or base-band video to a “one-decibel to theoretical” bit synchronizer input. Data can be recorded locally as well as remotely to network attached systems (NAS).
SDRs are available in many configurations from lab to MIL-SPEC applications. The smallest 1U design supports two streams of data and clock plus time. Larger configurations can support up to six additional PCM streams.
System Software
The SDR comes with graphical user interface software that can be used locally or in a networked IP-centric environment. If interfacing to a custom environment is more suited to your needs, simple command syntax operations make user control and custom menu selection simple and easy.
SNMP is used to support e-mail and pager alerts when alarm conditions occur for unit temperature, power supplies, disk drives, or any other major system events. This support also applies to NAS devices that are attached to the SDR.
Chassis
Our family of SDRs offers a chassis to meet any application. From the commercial chassis to the MIL-SPEC chassis, there is an SDR that will provide the level of operability and support needed for today’s data recorder users.
Commercial
The commercial packages come in 1U and 2U designs. Both have redundant power supplies and redundant fans. This package is provided with gigabit Ethernet, dual 72 GB disks, and a CD/DVD drive, which ensure that captured sessions can be easily moved to either a local device or to a network.
Industrial
The industrial package is configured as a 2U device that supports up to six removable disk drives as well as the features that form the core of the SDR family: dual power supplies, dual 72 GB disks, a DVD drive, and gigabit Ethernet for remote NAS-type applications. Power supply and fan monitoring are included so that immediate maintenance can be addressed. The redundancy built into the power supplies and fans ensures complete 24/7 operation.
MIL-SPEC
The MIL-SPEC chassis is a 4U compact PCI chassis with dual disk drives and fan monitoring features and alerts. The MIL-SPEC chassis meets the shock and vibration requirements for MIL-STD-810E and MIL-STD-167/1. In addition, the chassis provides excellent electromagnetic interference (EMI) characteristics that meet Federal
Communications Commission Class B EMI standards. The entire chassis is built of .090-inch, seam-welded aluminum alloy using stainless steel fastener hardware.
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Inputs |
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PCM Data/Clock |
Quantity Per Slot |
Two simultaneous independent PCM inputs, NRZ-L, M, or S data and clock |
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Polarity |
Normal and inverse, programmable |
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Clock Input Phase |
0° or 180°, programmable |
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Impedance |
Low (75 ohms) and High (10 Kohms), programmable |
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Levels |
TTL and RS-422 differential, programmable |
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Rate |
1 bps to 60 Mbps (configuration dependent) |
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Time Input Source |
External or internal, programmable |
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External Time |
IRIG A, B, G modulated carrier input; 1/4x , 1/2x, 1x, 2x, 4x (IRIG A and B) rate; LED indicator of signal presence |
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Internal Time |
On-board timer seeded from any source internal to computer; e.g., computer clock or GPS receiver |
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PCM Data |
Codes |
NRZ-L/M/S, BIØ-L/M/S, BIØ-M/S, DM-M/S, RZ |
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Level |
500 mV to 10V peak-to-peak |
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Derandomizer |
Forward & reverse, 5 lengths: 9, 11, 15, 20, 23 |
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Impedance |
75 ohms or 10K ohms (programmable), 50 ohms available (single-ended), 110 ohms (differential) |
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Sources and Type |
One single-ended and one differential, programmable |
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Polarity |
Normal or inverted, programmable |
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Loop Bandwidth |
0.004% to 5%, programmable, 0.004% resolution |
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Operating Range |
NRZ – 10 bps to 60 Mbps
Non-NRZ – 10 bps to 30 Mbps |
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Sync Status |
TTL logic line indicating status bit sync; on-board status LED of bit-sync lock and PCM signal presence |
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Processing |
Note: Signal processing is used for data quality monitoring and not for processing data to be recorded. |
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Sync Pattern Length |
4 to 64 bits, programmable |
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Sync Pattern Errors |
0 to 16 bits, programmable |
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Sync Word Mask |
Any bits masked, programmable |
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Sync Strategy |
1 to 16 pattern matches (lock and drop) programmable |
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Sync Modes |
Normal, jam sync, burst, flow-through, and self-test, programmable |
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Bit Slip |
0, ±1, ±2, ±3 bits, programmable |
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Minor Frame Length |
Up to 65,536 words/minor frame, programmable |
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Reed-Solomon |
CCSDS compatible (255, 223) code with field generator polynomial of x8 + x7 + x2 + x + 1 |
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Outputs |
PCM Codes |
NRZ-L/M/S, BiÆ L/M/S, DM-M/S, and RNRZ-1 (forward or reverse lengths 9, 11, 15) |
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Rates |
NRZ codes to 60 Mbps; others to 30 Mbps |
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Polarity |
Normal or inverted (programmable) |
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Level |
TTL compatible (single-ended) into 75-ohm load |
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1V peak-to-peak with no DC offset into 75-ohm load |
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RS-422 differential (120 ohms) |
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Electrical & Environmental |
Form Factor |
Standard 19-inch, rack mounted |
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Connectors |
IEC-320 for power
DB high density connectors for signal |
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Operating Temperature |
32º to 158 ºF (0 ºC to 70 ºC) |
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Storage Temperature |
14º to 185 ºF (-10º to 85 ºC) |
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Operating Altitude |
0 to 10,000 feet (0 to 3,100 meters) |
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Storage Altitude |
-1,000 to 20,000 feet (-300 to 6,200 meters) |
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Humidity |
20 to 95% noncondensing |
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Ordering |
SDR-101-01 |
Serial Data Recorder, PCI, 1U |
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SDR-102-01 |
Serial Data Recorder, PCI, 2U |
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SDR-202-01 |
Serial Data Recorder, C-PCI, 2U, Industrial |
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SDR-203-01 |
Serial Data Recorder, C-PCI, 3U, Industrial |
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SDR-304-01 |
Serial Data Recorder, C-PCI, 4U, MIL-SPEC |
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SDR-431-01 |
PCM Input with Bit Sync, 30 Mbps |
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SDR-461-01 |
PCM Input with Bit Sync, 60 Mbps |
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SDR-432-01 |
PCM Input, Dual, 30 Mbps |
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SDR-532-01 |
PCM Output, Dual, 30 Mbps |
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SDR-562-01 |
PCM Output, Dual, 60 Mbps |