B&B Electronics ESU2-400 Datasheet
High Speed USB Serial Adapters
KEY FEATURES
1, 2, 4 or 8 independent serial ports
RS-232 or software-selectable
RS-232/422/485
Compatible with USB 1.1
Plug-and-play capability
Devices enumerate themselves as
standard COM ports
Speeds up to 921.6 kbps
High speed UARTs with 1KB FIFOs to
boost data rates
Optional surge suppression package
(standard on Embedded products)
Full modem control and hardware and
software flow control
Bus powered: no external power required
Embedded (board-only) units also
available
Windows 2000/XP, Linux support coming
soon
RoHS compliant
5 year warranty
Rev 1.0,
08.22.06
Standard serial ports via USB 2.0 without replacing peripheral hardware
or application software
Connect serial peripherals with USB
2.0 Serial Adapters
You can now broaden the range of
external peripherals used on your
computer at higher speed rates than the
USB 1.1 series, with the introduction of
the High Speed USB 2.0 Serial
Adapters. The USB 2.0 has more
bandwidth that allows higher data rates
on the serial ports for more efficiency.
The new High Speed USB Serial
Adapter line gives your laptop or
workstation the ability to communicate
between a USB port and up to eight RS232, RS-422, or RS-485 serial
peripherals. It adds the COM port(s) via
its USB connection and is compatible
with new and legacy RS-232 or RS232/422/485 devices. The USB Serial
Adapters are the ideal solution for a
variety of industries and applications
including banking, retail and industrial
automation where PCs have a
significantly shorter lifecycle than the
peripherals that use them.
As we continue in the race tobecomethe
industryleader,ourhighperformancedevice
connectivitylineexpands with the new high
speed USB2.0 Serial Adapters. The next
generation USB Serial Adapter hits speeds
of up to 921.6 kbps, 1024-byte FIFO and
hardware and software flow control.
2XU USB Serial Adapters
enumerate themselves as standard
COM ports that are compatible with all
standard RS-232 or RS-232/422/485
devices and software created for them.
With the industrial surge suppression
“IND” option, you can safeguard the USB
Serial Adapter. The “IND” option is ideal
for implementing USB-to-serial networks
in factories, power plants and other
potentially harsh industrial
environments. USB 2.0 is fully
compatible with USB 1.1 devices. The
older devices work with the new bus,
and vice versa.
The 400 Series models introduce the
software-selectable RS-232/422/485
(Multi-Electrical Interface or MEI). The
MEI capability is available on all ports at
the click of a mouse. LEDs visually tell
you which ports are using which
protocol, so go ahead, mix and match.
Embedded USB Serial Adapters for
custom enclosures
If you’re looking to seamlessly connect
multiple serial peripherals via a single
USB port in a custom enclosure, try
RXU board-level solutions,
Embedded USB
Serial Adapters.
HIGH SPEED USB SERIAL ADAPTER SPECIFICATIONS (VERSION 2.0)
Rev. A
6/2006
Ordering Information
Bus Interface
USB 2.0 High Speed
OS Support
Windows 2000/XP, Linux support coming soon
Data Rate
Up to 921.6 kbps (max)
Serial Ports Provided
SSU: 1 DSU: 2 QSU: 4 ESU: 8
(For 400 models, each configurable as RS-232,
RS-422 or RS-485 for full or half duplex
communication)
USB Ports Required
SSU: 1 DSU: 1 QSU: 1 ESU: 1
UARTS
1024-byte FIFOs for transmit and receive
Transceiver (RS-232/422/485)
MAX491 or compatible
Differential Driver Output (50Ù Load):
+2V (min), +3.3V (max)
Differential Driver Output (27Ù Load):
+1.5V (min), +3.3V (max)
High Input: +2V (min)
Low Input: +0.8V (max)
Driver Rise/Fall Time: 5ns (min), 20ns (typ),
25ns (max)
Driver Input to Output Delay: 20ns (min),
40ns (typ), 60ns (max)
Receiver Input to Output Delay: 40ns (min),
70ns (typ), 100ns (max)
RS-232 Output
Voltage Swing: ±5V (min), ±5.4V (typ)
RS-232 Input
Voltage Range: -15V (min), +15V (max)
Input Threshold Low: 0.6V (min), 1.0 (typ)
Input Threshold High: 2.4VV (max), 1.5 (typ)
IND Option: Surge suppression applied to each
line that is capable of sustaining up to 40A
peak, 8 x 20ìs transient surges, a clamping
voltage of 30V and a peak energy dissipation of
0.1 Joules.
(NOTE: The “IND” option limits data rate to
115.2 kbps)
Environment
Operating: 0° to 70°C
Storage: -50° to 80° C
Humidity: 10% to 90%
Power Requirements
Bus-powered device, no external power supply
required
Suspend power: < 500 ì A
Unconfigured power: < 100 mA
Configured power: < 500 mA
Size
SSU: 3.6” L x 1.7” W x 1” H
DSU/QSU: 9.18” L x 5.25” W x 1.675” H
ESU: 9.18” L x 5.25” W x 2.363” H
Connectors
DB-9 male
Certifications
CE, FCC Class B, RoHS & WEEE Compliant
Model Ports Interface
SSU2-100 1 RS-232 with cable
DSU2-100 2 RS-232 with cable
DSU2-400 2 RS-232/422/485 with cable
QSU2-100 4 RS-232 with cable
QSU2-400 4 RS-232/422/485 with cable
ESU2-100 8 RS-232 with cable
ESU2-400 8 RS-232/422/485 with cable
Retail Application
Banking Application
High Speed Modem
Central Bank Server at
Remote Location
Multiport USB to
RS-232 Serial Adapter
Branch Host PC
RS-232
RS-232
Teller Station 1
Teller Station 2
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