Technical SpecificationsPrinted Circuit BoardDimensions3U Eurocard (100x160mm), front panel width 20.2mm (4HP), mechanics constructed with respect to EMC requirements, ejector leverSCSI BusBus Type2 x ANSI SCSI Parallel Interface-2 (SPI-2) 16-bit (8-bit by adapter)
LVD (low voltage differential signal) max. 2 x 15 devices
SE (single ended) max. 2 x 15 devices (16-bit), 2 x 7 devices (8-bit)Performance
(each Channel)Ultra2 80MBps
Wide Ultra 40MBps (16-bit), Narrow Ultra 20MBps (8-bit)
Wide Fast 20MBps (16-bit), Narrow Fast 10MBps (8-bit)Connector SCSI_Xexternal connectors (front panel): dual VHDCI (0.8mm pitch) 68-lead receptacle, shielded, screw lock mechanism, each connector rotated 180° against the other (matching plugs with suitable asymmetric hood profile required if both connectors are engaged)Connector SCSI_Iinternal connector: 68-lead high density socket HDSUB (1.27mm pitch), screw lock mechanism 2-56 UNC, SCSI channel A onlyMaximum SCSI cable lengthLow Voltage Differential (LVD) mode: Ultra2 SCSI 12m
Single Ended Mode (SE) mode: Fast SCSI 3m, Ultra SCSI 3m (4 devices), 1.5m (8 devices)Terminationactive termination, automatically enabled when board is sensed to be either end of the SCSI bus, LVD/SE self configurated termination power fused by self resetting Polyswitches 1.25A tripController ChipSCSI multi-function controller SYM53C896 I2O Ready
maximum aggregated throughput 160MBps
PCI busmaster 64/32-bit (block transfer maximum 266MBps)
on-chip LVD/SE transceiver 2kV ESD protected
SCAM (SCSI Configured AutoMatically) level 1 functionality
target disconnect/reconnect (interrupt)
Symbios TolerANT™ SCSI signal filteringCompactPCI®
BusConnector J2
Connector J164-bit, 33MHz (266MBps)
32-bit, 33MHz (133MBps)
PCI Burst Mode
3.3V oder 5V InterfaceLED DisplayFront Panel
(each channel)termination power
activity
LVD mode (permanent red light) or SE mode (flashing whenever SCSI Bus Busy active)On-Board
(each channel)local terminators active
Single Ended (SE) mode
Low Voltage Differential (LVD) mode
serial EEPROM data line access
GPIO4 (channel A: Flash BIOS programming)Power RequirementsConnector J1+5V ± 5% 3A max. (including ext. termination power)
+3.3V ±0.3V 0.6A max.
+12V ±5% 0.05A max.Temperature
HumidityCommercial Grade VersionOperating temperature 0-70°C (industrial temperature range available on request)
Humidity 5-90% non condensingSoftwareDrivers/BIOS
DownloadSymbios/LSI Logic SDMS software for Windows and many other popular operating systems specifications are subject to change without further notice
Ordering InformationAliasOrdering NumberShort DescriptionSAXCS4-1-SAX3HE CompactPCI Dual Ultra2 SCSI Hostadapter, 32-bit CPCI I/F J1 (J2 left out)SAXCS4-2-SAX3HE CompactPCI Dual Ultra2 SCSI Hostadapter, 32/64-bit CPCI I/F J1/J2 CR9-1-ADAPTmechanical kit, converts front panel from 3U to 6U 899.3.1.02external SCSI cable assembly, VHDCI to HD-DSUB, 68-pos., length 1m, asymmetric VHDCI connector 1
1 Whenever both external SCSI channels are in use (front panel mounted dual VHDCI receptacle), the connector style of the external VHDCI cabling set is important. Connectors conforming to the VHDCI standard are provided with an asymmetric cable entrance with respect to the center of the pin rows. However, there are cable assemblies available with symmetric VHDCI connectors, resulting in the effect that the plug partly overlaps the neighbouring VHDCI receptacle.
Dual-Port VHDCI Receptacle Shown Together With Asymmetric Connectors 
