Black Box 40870-R3 Manual De Usuario
4 of 4
12/19/2006
#22440
#22440
Recognize any of these situations?
• You wait more than 30 minutes to get through
to a vendor’s tech support.
• The so-called “tech” can’t help you or gives you
the wrong answer.
• You don’t have a purchase order number and the
tech refuses to help you.
• It’s 9 p. m. and you need help, but your vendor’s
tech support line is closed.
According to a survey by Data Communications
magazine, 90% of network managers surveyed say
that getting the technical support they need is extremely
important when choosing a vendor. But even though
network managers pay anywhere from 10 to 20% of their
overall purchase price for a basic service and support
contract, the technical support and service they receive falls
far short of their expectations—and certainly isn’t worth
what they paid.
that getting the technical support they need is extremely
important when choosing a vendor. But even though
network managers pay anywhere from 10 to 20% of their
overall purchase price for a basic service and support
contract, the technical support and service they receive falls
far short of their expectations—and certainly isn’t worth
what they paid.
At Black Box, we guarantee the best value and the
best support. You can even consult our Technical Support
Experts before you buy if you need help selecting just
the right component for your application.
Experts before you buy if you need help selecting just
the right component for your application.
Don’t waste time and money— call Black Box today.
Why Buy From Black Box? Exceptional Value.
Exceptional Tech Support. Period.
Exceptional Tech Support. Period.
724-746-5500
blackbox.com
✦
Enhanced TCP/IP Terminal Server
✦
AC power cable (not included for DC versions)
✦
3.5" software diskette
✦ (2) mounting brackets (for 40870-R3, 40871-R3,
40870-DC-R3, 40871-DC-R3) or (4) mounting brackets
(for 37687-R2, 37688-R2)
(for 37687-R2, 37688-R2)
NOTE: No mounting brackets are included with the 41872-R3 or
41874-R3.
41874-R3.
✦
RS-232 loopback-test connector
✦
10BASE-T loopback-test connector
✦
User’s manual
✦
Electrical-safety booklet
WHAT‘S INCLUDED
Item
Code
Enhanced TCP/IP Terminal Servers
Standalone with DB25 Connectors
8-Port
37688-R2
16-Port
37687-R2
Standalone with RJ-45 Connectors
2-Port
41872-R3
4-Port
41874-R3
Rackmount with RJ-45 Connectors
8-Port
40871-R3
8-Port, 48 VDC
40871-DC-R3
16-Port
40870-R3
16-Port, 48 VDC
40870-DC-R3
To adapt the RJ-45 ports for your serial devices, order…
Serial Adapters
PC/Terminal DTE (RJ-45 F/DB 9 F)
FA705
PC/Terminal DTE (RJ-45 F/DB25 F)
FA706
Modem DCE (RJ-45 M/DB25 F)
FA707
For modems, you might also want to order…
Straight-Through Pinned RS-232 Cable,
DB25 Male to DB25 Male,
10-ft. (3-m)
10-ft. (3-m)
ECM25C-0010-MM
NOTE: For PCs, terminals, or printers (DTEs), proper cross-pinning
can vary depending on your equipment. To make sure you get the
right cable for your application, call Black Box Tech Support at
724-746-5500.
can vary depending on your equipment. To make sure you get the
right cable for your application, call Black Box Tech Support at
724-746-5500.
• Attach a whole bank of modems and have the terminal
server function as a front-end processor for your UNIX host’s
remote data communication.
remote data communication.
• Attach a system of RS-232 sensors and data loggers and
feed the data through your LAN to your monitoring server
running Windows NT.
running Windows NT.
Technically Speaking
37687-R2