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Black Box Corporation • 1000 Park Drive • Lawrence, PA 15055-1018 • Tech Support: 724-746-5500 • www.blackbox.com • e-mail: info@blackbox.com
© 2004. All rights reserved.
Black Box Corporation.
10/8/2004 #24961
Extensive protocol
support.
Load balancing for
improved response
times.
Small size for efficient
space usage.
Simple to configure,
simple to use.
Multiple management
options.
Full security features.
Support for 128
sessions (16-port) or
256 sessions (32-port).
T
he Rackmount 10/100 Serial
Terminal Servers are an
excellent way to link PCs,
terminals, printers, modems, and
other serial devices to Ethernet
networks. They support
simultaneous connections to
each of their ports as well as one
10BASE-T link.
These terminal servers, by
connecting each device directly
to the network, conserve host
ports and enable each terminal to
access multiple hosts. Also,
terminal cabling on the network
is greatly simplified. For convenience, the 10BASE-T link can be
made through the RJ-45 port or
the BNC port.
Each port supports up to eight
sessions—LAT, Rlogin, and
Telnet™. This feature is
augmented with a load-balancing
mechanism through which the
unit chooses the least busy
connection for each session. The
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reset
activity
ok
100
link
power
10/100
aui
These terminal servers provide dependable,
secure connections for serial devices linked
to your Ethernet network.
Key Features
RACKMOUNT 10/100 SERIAL TERMINAL SERVERS
result is better overall response
time and balanced terminal
usage.
Configuration is simplified
through EZWebCon, a software
package included with the
terminal server. You can also
enter command lines from a serial
port connection, or you can log in
via NetWare
®
, LAT, or NCP/TSM.
You can also download standard
configuration files from TCP/IP,
LAT, or NetWare hosts during
startup.
Once configuration is
complete, operating the units is
easy. In local mode, each
supports command line editing,
command line recall, and
command completion. The
operating code is downloaded
automatically at start up, and the
Flash-ROM units provide
permanent storage for operating
software. For upgrades, simply
download the newest version.
If you run into trouble, an
extensive context-sensitive help
menu is available. For general
help, simply type “HELP.” For help
on a particular command, type
“HELP command.” You can also
place a question mark at the end
of a full or partial command line
for help at that specific point.
The units support industrystandard protocols, including:
• AppleTalk
®
: Enables
Macintosh
®
computers on
the network to access
attached devices.
• LAN Manager: Enables
attached devices to access
network printers. Supports
OS/2
®
and Windows NT®.
• Local Area Transport:
Supports almost all digital
systems as well as remote
logins and host-initiated
print spooling.
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• Serial cables and adapters
• AC power and data line surge protectors
• Ethernet cables
Approvals: FCC, UL®, CSA, TUV, CE
Compatibility: Ethernet: IEEE 802.3,
IEEE 802.3u
Data Rates: 300 bps to 230 kbps
Flow Control: X-ON/X-OFF,
hardware flow control
Heat Dissipation:
LES2700A-16-R2: 30 watts;
LES2700A-32-R3: 40 watts
Management: DHCP, HTTP, serial
console port, SNMP, Telnet™
Modem Control: DSR/DTR and
RTS/CTS
Protocols: AppleTalk
®
, DHCP, IPX™,
LAT (optional), SNMP, TCP/IP,
NetBIOS/NetBEUI, Telnet, TFTP
Serial Line Formats:
Characters: 7 or 8 data bits;
Stop bits: 1 or 2;
Parity: Odd, even, mark space,
or none
Sessions (TCP/IP and LAT):
LES2700A-16-R2: 128;
LES2700A-32-R3: 256
• NetWare: Works with
Ethernet v2, Native Mode
(802.3), 802.2, 802.2 SNAP,
Bindery mode, and NetWare
Directory Service (NDS).
• TCP/IP and UNIX
®
: Works
with DNS, Rlogin, and Telnet
as well as LPR and RTEL
printing systems.
The terminal servers boast
strong security features. They use
group codes, which limit users’
access to manager-chosen
services or devices. At the port
level, users are logged out
automatically as soon as a port is
disconnected or a device turned
off. Other standard features
include user-defined password
protection (by port), IP security
tables, dialback capabilities, and a
menu mode that enables
managers to impose command
restrictions based on a user’s
security level.
Remote configuration is
possible through a variety of
methods: digital login, Telnet, and
the included EZCon configuration
software, which supports logins
through TCP/IP, LAT, NetWare,
Windows
®
, UNIX, and AppleTalk.
The 10/100 Serial Terminal
Servers also support SNMP.
NOTE: No enterprise-specific
MIBs are supplied with the unit.
Y ou may also need…
Rackmount 10/100
Serial Terminal
Server (16-Port)
(LES2700A-16-R2)
10BASE-T Ethernet
connection
Terminal
TerminalModem Serial Printer
Specifications
Ordering Information
ITEM CODE
Rackmount 10/100 Serial Terminal Servers
16-Port........................................................LES2700A-16-R2
32-Port........................................................LES2700A-32-R3
Y
ou may also need…
LAT Software Upgrade
16-Port .......................................................LES2700A-16LAT
32-Port.......................................................LES2700A-32LAT
This diagram shows a typical
application for the 16-Port Rackmount
10/100 Serial Terminal Server.
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Software: Flash ROM standard:
downloadable from TCP/IP host
(TFTP download), DECnet host
(MOP download), or NetWare
®
file server
Connectors: Serial: (16) or
(32) RJ-45;
Network: (1) RJ-45, (1) BNC,
(1) AUI
Indicators: Power, Link, Unit OK,
Speed, Network Activity, Serial
Port Activity
Operating Temperature: 41 to 122°F
(5 to 50°C)
Storage Temperature: -40 to +151°F
(-40 to +66°C)
Power: 95–250 VAC, internal;
Consumption: 30 watts
Size: LES2700A-16-R2:
1.75"H x 17"W x 12"D
(4.4 x 43.2 x 30.5 cm);
LES2700A-32-R3:
3.5" x 17"W x 12"D
(8.9 x 43.2 x 30.5 cm)
Weight:
LES2700A-16-R2: 5.2 lb. (2.4 kg);
LES2700A-32-R3: 8 lb. (3.6 kg)
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