Expand the functionality of LVD/MSE and SE SCSI with the LVD/MSE to SE Converter!

 
 

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Expand the functionality of LVD/MSE and SE SCSI with the LVD/MSE to SE Converter!  


SCSI LVD/MSE to SE Converter
 
Convert Between LVD/MSE and Single-EndedConvert Between LVD/MSE and Single-Ended
Extend Bus LengthExtend Bus Length
Isolate Segments of a SCSI BusIsolate Segments of a SCSI Bus
Paralan's Series 80 Models MS16 / MS17 - Expand the functionality of LVD/MSE and SE SCSI in several ways; 1) Allows adding an SE device to an LVD bus without slowing down the LVD bus segment, 2) Conversion from LVD to SE or vice versa, 3) Extending the SE bus length, 4) Isolating an SE SCSI segment from an LVD SCSI segment, 5) Join SCSI segments with no  impact on SCSI protocol or data throughput, 6) Adding a non-multimode LVD device to an SE SCSI bus, and 7) Easily add a narrow (8-bit) SE device to a wide (16-bit) LVD bus

 

SCSI ultra 160 asic converters scsi_bus paralan ultra scsi_standard single-ended differential switches isolating regenerators narrow to wide conversion coax fiber optic ansi x3t10 transmitting req ack lvd/mse to hvd converters lvd expanders differential converter extenders paralan regenerators X3T10 switches cable single-ended ASIC fiber optic cable tester marc brooks scsi_bus expert lvd/mse to hvd converters white papers reprinted sta article ansi sasi scsi-1 X3.131-1986 customized to your own specifications

 

Expand the functionality of LVD/MSE and SE SCSI in several ways; 1) Allows adding an SE device to an LVD bus without slowing down the LVD bus segment, 2) Conversion from LVD to SE or vice versa, 3) Extending the SE bus length, 4) Isolating an SE SCSI segment from an LVD SCSI segment, 5) Join SCSI segments with no impact on SCSI protocol or data throughput, 6) Adding a non-multimode LVD device to an SE SCSI bus, and 7) Easily add a narrow (8-bit) SE device to a wide (16-bit) LVD bus, by using Paralan’s Series 80 Models, MS16A / MS17A.

Maximizing Thruput with Mixed Devices
Multimode LVD SCSI will automatically change to Single-Ended (SE) if a SE device is on the bus segment. When both LVD and SE devices share the same bus segment, the entire SCSI bus segment will operate at the lower performance level of single-ended SCSI, including reduced bus length. However, by grouping LVD and SE devices, and isolating them with a Multimode Expander, the LVD devices can be operated at their full designed thruput levels.

 

Multimode LVD SCSI will automatically change to Single-Ended (SE) if a SE device is on the bus segment. When both LVD and SE devices share the same bus segment, the entire SCSI bus segment will operate at the lower performance level of single-ended SCSI, including reduced bus length. However, by grouping LVD and SE devices, and isolating them with a Multimode Expander, the LVD devices can be operated at their full designed thruput levels

When Used to Extend the SCSI Bus
Cable causes timing delays of approximately 1.5 ns per foot of length. When SCSI-specified cable length is exceeded, this cable-caused delay would normally cause a system to malfunction. Logic circuitry in the Expander manages this delay such that disconnect, reconnect, arbitration and all other SCSI features are not affected. The SCSI signals are regenerated, reshaped, and retransmitted, all transparent to the system.

Using MS16A Expanders in a back to back connection
This configuration works well to extend a single-ended bus segment. Use a full SE cable length on the SE host side, up to 25 meters (82 feet) of SCSI cable between the two expanders and the full SE cable length on the remote segment to extend the total bus length.

 

Using MS16 Expanders in a back to back connection. This configuration works well to extend a single-ended bus segment. Use a full SE cable length on the SE host side, up to 25 meters (82 feet) of SCSI cable between the two expanders and the full SE cable length on the remote segment to extend the total bus length

Paralan Expanders are completely compatible with all LVD, LVD/MSE and SE that conform to the full ANSI X3T10 standard. They are available either as stand-alone units utilizing wall power, or as board-level units for installation in other equipment.

Isolation for Hot Swapping
The logical isolation between the two sides of an Expander allows a device on one side to be disconnected without disturbing devices on the other side.

Narrow/Wide Conversion
The MS16A and MS17A models may be used to interconnect narrow SCSI devices on one side for example, with wide SCSI on the other side. This method assures proper termination on both bus segments.

High Voltage Differential (HVD) SCSI Extenders and Converters
Paralan also has Converters for converting between High Voltage Differential (HVD) and LVD or single-ended SCSI devices. See Paralan Series 80 MHxx models.

To extend an existing HVD bus, see the data sheet for Paralan’s SIR-D16 RegeneratoR™.

 

SCSI ultra 160 asic converters scsi_bus paralan ultra scsi_standard single-ended differential switches isolating regenerators narrow to wide conversion coax fiber optic ansi x3t10 transmitting req ack lvd/mse to hvd converters lvd expanders differential converter extenders paralan regenerators X3T10 switches cable single-ended ASIC fiber optic cable tester marc brooks scsi_bus expert lvd/mse to hvd converters white papers reprinted sta article ansi sasi scsi-1 X3.131-1986 customized to your own specifications

 
 
The Series 80 models are backward compatible with older versions of SCSI. The board-level version MODEL MS17 is sized to fit in a standard 5.25' drive bay. Does not consume a SCSI ID

Targets and initiators may be located on both the A and B sides of the Expander.

The Series 80 models are backward compatible with older versions of SCSI

Stand-alone and Board-level Versions Available:

     

  • The stand-alone MODEL MS16A includes a power supply for standard power line operation.

     

  • The board-level version MODEL MS17A is sized to fit in a standard 3.5" drive bay.
Does not consume a SCSI ID!

For a printable version, please see the PDF of this data sheet.


 
Ordering Guide
Model Numbers Description
Stand-alone Unit Board-level Version   
MS16A MS17A SCSI Wide LVD/MSE to SE Expander (16-bit)
EB1
Rack Mount Expander Box (rack mount up to 3 SCSI Expanders)
2811
5-1/4" Half Height Drive Bay Mounting Bracket & Faceplate for MS17
SQxx
SCSI Quiet Cable™   (specify length)
Specifications
MS16A/17A SCSI LVD/MSE to SE Expander
Environmental
Relative Humidity:0 - 95% non-condensing
Operating Temperature:0 - 50°C
Storage Temperature:–25 - +75°C

Weight:
MS16A: approx. 12 oz (0.9 kg)
Shipping weight, approx. 2 lb (1.8 kg)
MS17A: 2.5 oz (71 g)
Shipping weight, approx. 2 lb (1 kg)

Safety Approvals
UL, CSA, TUV, CE
EMI/RFI
FCC Class A, CE
SCSI Connections
MS16A, MS17A: SCSI-3 68-pin High-Density female Alt-3 “P” Connector
Communication
Sustained Data Throughput:
Limited by SE bus to 40 Mbytes/sec (16-bit)

Warranty
Two year limited warranty
Power Requirements
Stand-alone units (MS16A):
Voltage:100 - 250 VAC, auto select
Frequency:50 - 60 Hz

Board-level units (MS17A):
 

Voltage:5 V dc ±5%
Current:0.8 Amps
An additional 1 Amp Max if used to power
external terminators

 

Physical Size: (MS16A)
Height: 1.6 in. (41 mm)
Width: 4.1 in. (104 mm)
Depth: 4.5 in. (114 mm)
(MS17A)
Height: 0.4 in. (10.2 mm)
Width: 3.880 in. (98.5 mm)
Depth: 4.5 in. (114 mm)

Board-Level Version Dimensions. Paralan's Series 80 Models MS16 / MS17 - Expand the functionality of LVD/MSE and SE SCSI in several ways; 1) Allows adding an SE device to an LVD bus without slowing down the LVD bus segment, 2) Conversion from LVD to SE or vice versa, 3) Extending the SE bus length, 4) Isolating an SE SCSI segment from an LVD SCSI segment, 5) Join SCSI segments with no  impact on SCSI protocol or data throughput, 6) Adding a non-multimode LVD device to an SE SCSI bus, and 7) Easily add a narrow (8-bit) SE device to a wide (16-bit) LVD bus

 
 
9 TO 5 COMPUTER: Global Value-Added Distribution of NEW, used and refurbished computer periphery by a family-owned and operated company since 1979- distributing internationally computer related peripherals on the new, used and refurbished levels. HP, Compaq, IBM, CISCO, 3COM, APPLE, SEAGATE, and other major branded products as well as a MAJOR focus on Mass Storage related drives, media, storage racks, tri-optic barcode labels, libraries, autoloaders, duplicators, jukeboxes, HBA's, JBOD, Raid, SAN, NAS and software solutions.

As our stock of NEW, used and refurbished storage equipment changes daily, be sure to use our online chat service to get "real time" pricing from a knowledgeable sales technician. We also offer the lowest priced storage media on the net. Contact us now for drive rental, repair, duplication, software solutions or professional consultation.

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*Price and availabilities subject to change without any notice. Not responsible for typographical errors.


Paralan SCSI products, Expand the functionality of LVD/MSE and SE SCSI with the LVD/MSE to SE Converter!