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PCI 720 series adapters are enhanced
versions of ImageStream's low-cost PCI 800 series adapters.
The 720 series provides an accelerated hardware architecture
that supports wire-speed performance with packets
as small as 64 bytes. 720 series cards are available
in single or dual port HSSI, DS3 and E3 versions.
The DS3 and E3 cards provide full-speed CSU/DSUs that
support full-speed circuits. The 720 series adapters
make ideal candidates for processor intensive telecommunications
platforms and bandwidth intensive multimedia applications.
The PCI 720 series uses a 32-bit 33 MHz PCI bus mastering
controller that provides a burst rate of 132 MB per
second. The main components of the 720 series are
the Intel i960HD66 RISC processor, the PCI controller,
and two DXI HDLC controllers. The i960 processor manages
packet flow between the DXI controller, packet RAM
and host RAM. The i960 can act as a direct PCI bus
master with direct access to host RAM, or it can initiate
DMA transfers between packet RAM and host buffers
via the PCI controller. The VLSI DXI controller module
supports both HDLC and transparent modes of operation
at speeds up to 52 Mbps. Dual 8/16KB FIFOs are connected
directly to the DXI HDLC controller for both transmit
and receive queues to minimize packet transfer latencies.
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Performance:
- 32-bit 33 MHz PCI bus master
- Low-latency PCI interface
- Up to 2 full duplex sync ports
- Up to 52 Mbps full duplex throughput
per port
Technical Highlights:
- PCI 2.1 compliant
- Intel i960HD66 processor
- 1 MB packet RAM
- 1 MB code RAM
- 0.5 MB flash RAM
- VLSI HDLC controller
- Time stamping option with 1 microsecond
resolution
- 16/32 bit CRC
- MTBF greater than or equal to 100,000
hours
Interface Options:
- Single or dual HSSI interfaces
- Single or dual DS3 interfaces
- Single or dual E3 interfaces
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Interface Specifications:
- HSSI: ANSI/TIA/EIA-612-1993 and ANSI/TIA/EIA-613-1993
- DS3: ANSI T1.107-1195 and ANSI T1.404-1994
- E3: ITU G.703 (75 ohm), G.751
- DS3 and E-3 cards use G.703-compliant
75 ohm BNC connectors
Environmental Requirements:
- Operating temperature 0 to 55 degrees
C (32 to 131 degrees F)
- Relative humidity to 90% (non-condensing)
Power Requirements:
- 1.8 amps @ 5 volts (max)
- 0.2 amps @ 12 volts (max)
- 0.4 amps @ -12 volts (max)
Certification:
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