Black Box | SW487A-R2 | SCSI MATRIX AND SCSI ELECTRONIC SWITCHES

SCSI MATRIX AND SCSI ELECTRONIC SWITCHES
© 2003. All rights reserved.
Black Box Corporation.
Black Box Corporation • 1000 Park Drive • Lawrence, PA 15055-1018 • Tech Support: 724-746-5500 • www.blackbox.com • e-mail: info@blackbox.com
SCSI MATRIX AND SCSI ELECTRONIC SWITCHES
Don’t buy additional SCSI peripherals—
share them instead!
Key Features
Connect any SCSI bus
on one side of the
switch to any SCSI bus
on the other side.
Transparent switching.
No SCSI ID required.
Monitor and manage
via LCD menus, ASCII
commands, or GUI
control software.
Support up to 32, 40, or
even 60 peripherals!
Daisychain via serial
ports for centralized
control.
Most units are
rackmountable.
1
2/4/2003
#16184
CSI I/O devices are useful,
often powerful, and have some
of the best available data-transfer
rates. But they can be expensive,
too. And some of them, such as
tape drives and scanners, are
only used occasionally. Rather
than buying one for each user,
share them.
Our SCSI switches come in
several varieties that can switch
between different numbers of
SCSI buses. Choose from 2 x 2 or
4 x 2 Matrix Switches and 6 x 4
Electronic Switches.
These crosspoint switches
are transparent to your system
operation. That means they can
connect any bus on one “side” of
the switch to any bus on the other
side, with no delay and no need
for a SCSI ID.
You can use LCD-panel
menus, push buttons, and LEDs to
do monitoring and management
S
from a switch’s front panel.
Menus serve a wide variety of
functions. They can be used to
switch or terminate SCSI ports,
display SCSI port status, enable or
disable daisychaining, number the
switches in a daisychain, display
the internal temperature, set a
maximum temperature limit, lock
or unlock the front panel, and
display the firmware version.
However, you’ll probably find
it more convenient to manage a
switch remotely by attaching it to
your LAN or to an administration
computer’s serial port. (The
switches include a serial cable
and adapter for this purpose.)
From an admin computer, you
can send ASCII commands that
duplicate all of a switch’s LCD
menu functions. Plus you can
send commands to set or report
alarm conditions, to report port
performance, to yank on the SCSI
reset line, or to lock or unlock the
computer’s serial port.
For complete convenience
and management, all SCSI Matrix
and Electronic Switches include a
CD-ROM of Windows based GUI
control software that makes your
job even easier. You can replace
the ASCII commands with simple
radio buttons and checkboxes!
The 2 x 2 Matrix Switches
support up to 32 peripherals.
If you think that’s a lot, check
out the 6 x 4 Electronic
Switches—they support up to 42
peripherals. And the 4 x 2 Matrix
Switches support as many as 60
peripherals! All models can be
daisychained through their serial
ports for larger or more complex
installations, or just for more
centralized control. LCD-panel
menus also set the serial ports’
data rate at 9600 bps or 19.2 kbps.
®
(continued on page 2)
(continued from page 1)
The 2 x 2 Matrix Switches are
designed for desktop use only,
but the 4 x 2 Matrix Switches and
6 x 4 Electronic Switches come
with adhesive feet (if you want to
place them on a desk or another
flat surface) and rackmount hardware (if you want to mount them
in a standard 19" equipment rack).
2 x 2 SCSI Matrix Switches
Two units are available.
Choose the model you need to
support Single-Ended Narrow and
Wide SCSI or Differential Narrow
and Wide SCSI.
Both units switch connections
between four independent SCSI
buses. Electronic switching is
transparent to SCSI controllers
and peripherals, and the switches
require no SCSI ID.
4 x 2 SCSI Matrix Switches
Two units are available that
support Single-Ended Narrow and
Wide SCSI or Differential Narrow
and Wide SCSI.
By using a switch and its
electronic switching circuits, you
can electrically make or break
connections between groups of
four and two independent SCSI
buses.
As with the 2 x 2 switches, all
switching is transparent and no
SCSI ID is required for the units.
You can daisychain up to 60 4 x 2
SCSI Matrix Switches
(SC122A-R2, SC123A) and control
them all by one serial port.
6 x 4 Electronic SCSI Switches
Two units are available that
support either Differential Narrow
and Wide SCSI or Single-Ended
Narrow and Wide SCSI.
By using a switch and its
electronic switching circuits, you
can electrically make or break
connections between groups of
six and four independent SCSI
buses.
Up to 42 of these switches
can be daisychained together and
controlled via one serial port. All
switching is transparent and no
SCSI ID is required.
Specifications
Cabling Distance (Maximum):
SC120A-R2, SC122A-R2,
SW487A-R2: Single-Ended:
6 m (19.7 ft.); LVD: 25 m (82 ft.);
Serial: 15 m (49.2 ft.);
SC121A, SC123A, SW485A:
HVD: 25 m (82 ft.)
Data Format: Serial: No parity,
8 bits, 1 stop bit (fixed)
Port Switching Delay (Maximum):
3 ns
Protocol: All: Asynchronous and
synchronous compatible;
SC120A-R2, SC122A-R2,
SW487A-R2: TCP/IP
compatible
SCSI Bus Termination:
Single-Ended and LVD:
Active internal;
Differential: Passive internal
SCSI Compatibility: SC120A-R2,
SC121A, SC122A-R2,
SC123A, SW485A, SW487A-R2:
SCSI-1, SCSI-2, SCSI-3;
SC120A-R2, SC122A-R2,
SW487A-R2: Also compatible
with Ultra160 SCSI (Ultra3
SCSI)
Signal Skew (Maximum): 2 ns
Speed (Maximum):
All: Serial: 9600 bps or 19.2 kbps;
SC120A-R2, SC121A, SC122A-R2,
SC123A: LAN: 10 Mbps;
SC120A-R2, SC122A-R2,
SW487A-R2:
Single-Ended:
8-bit Narrow: 20 MBps;
16-bit Wide: 40 MBps;
Differential:
8-bit Narrow: 40 MBps
for Ultra2 SCSI
(Narrow transfers
aren’t officially
supported in the
Ultra160 SCSI
standard);
16-bit Wide: 160 MBps;
SC121A, SC123A, SW485A:
8-bit Narrow: 40 MBps;
16-bit Wide: 80 MBps
2
Interface: SC120A-R2, SC122A-R2,
SW487A-R2: Single-Ended
Narrow and Wide SCSI;
SC121A, SC123A, SW485A:
Differential Narrow and Wide
SCSI
Connectors:
SC121A: SCSI: (6) 68-pin HD F;
LAN: (1) RJ-45; Serial: (1) DB9 F;
SC123A: SCSI: (8) 68-pin HD F;
LAN: (1) RJ-45; Serial: (1) DB9 F;
SW485A: SCSI: (14) 68-pin HD F;
LAN: (1) RJ-45; Serial: (1) DB9 F;
SC120A-R2, SC122A-R2,
SW487A-R2:
SCSI: SC120A-R2:
(6) 68-pin HD F;
SC122A-R2:
(8) 68-pin HD F;
SW487A-R2:
(14) 68-pin HD F;
LAN: (1) RJ-45;
Serial: (1) DB9 M, (1) DB9 F
Operating Environment:
Temperature: 32 to 149°F
(0 to 65°C);
Humidity: Up to 90%
noncondensing
Power: SC120A-R2, SC121A:
95 to 260 VAC, 48 to 65 Hz,
autosensing;
SC122A-R2, SC123A:
105 to 240 VAC, 48 to 65 Hz,
autosensing;
SW485A, SW487A-R2:
105 to 240 VAC, 50 to 60 Hz,
autosensing
Size:
SC120A-R2, SC121A, SC122A-R2,
SC123A: 4.5"H x 11.3"W x 9.7"D
(11.4 x 28.7 x 24.6 cm);
SW485A, SW487A-R2:
3.5"H x 16.8"W x 12"D
(8.9 x 42.7 x 30.5 cm)
Weight: 5 lb. (2.3 kg)
Ordering Information
ITEM
CODE
2 x 2 SCSI Matrix Switches
Single-Ended Narrow and Wide, 68-Pin LVD..................................................................................................................SC120A-R2
Differential Narrow and Wide, 68-Pin HVD ...........................................................................................................................SC121A
4 x 2 SCSI Matrix Switches
Single-Ended Narrow and Wide, 68-Pin LVD..................................................................................................................SC122A-R2
Differential Narrow and Wide, 68-Pin HVD ...........................................................................................................................SC123A
6 x 4 Electronic SCSI Switches
Differential Narrow and Wide, 68-Pin HVD..........................................................................................................................SW485A
Single-Ended Narrow and Wide, 68-Pin LVD................................................................................................................SW487A-R2
You might also need the following SCSI Cables…
Micro D68 Male-to-Male—for Attaching Ultra2 SCSI Devices (Data Rates up to 80 MBps)
3-ft. (0.9-m) ............................................................................................................................................................EVMS25-0003-MM
6-ft. (1.8-m) ............................................................................................................................................................EVMS25-0006-MM
Micro D68 Male to VHDCI 68-Pin Male—for Attaching Ultra2 SCSI Devices
3-ft. (0.9-m) ............................................................................................................................................................EVMS26-0003-MM
6-ft. (1.8-m) ............................................................................................................................................................EVMS26-0006-MM
Micro D68 Male-to-Male—for Attaching SCSI-3 Devices (Data Rates No Higher Than 40 MBps)
3-ft. (0.9-m)...........................................................................................................................................................EVNSC07-0003-MM
6-ft. (1.8-m)...........................................................................................................................................................EVNSC07-0006-MM
Micro D68 Male to Micro D50 Male—for Attaching SCSI-3 Devices
3-ft. (0.9-m)...............................................................................................................................................................EVMS8-0003-MM
6-ft. (1.8-m)...............................................................................................................................................................EVMS8-0006-MM
Micro D68 Male to Micro D50 Male—for Attaching SCSI-2 Devices (Data Rates No Higher Than 20 MBps)
5-ft. (1.5-m) ........................................................................................................................................................................EVMS4-0005
If you’d like to attach Ultra160 SCSI devices (data rates up to 160 MBps), please call Black Box Tech Support.
We might be able to give you a quote on the cables you’ll need.
You might also need…
SCSI Fiber Optic Extenders (with High-Density 68-Pin Connectors)
Low-Voltage Differential (LVD)...............................................................................................................................................IC490A
Differential (HVD).......................................................................................................................................................................IC508A
CAT5 UTP for 10BASE-T (24 AWG Stranded, 4-Pair, PVC)
Unterminated Bulk Cable, 250-ft. (76.2-m) ..........................................................................................................EVNSL05A-0250
Terminated Patch Cable (RJ-45 Male-to-Male, TIA-568B, Straight-Pinned—Specify Length).......................EVMSL05
Data-Line Surge Protectors
10BASE-T (RJ-45 Female-to-Male) ...............................................................................................................................SP512A-R3
RS-232 (DB9 Male-to-Female)........................................................................................................................................SP361A-R2
Call Black Box Tech Support for help determining your best options for AC power protection.
3
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising