US Robotics USR4204 User manual

USR4204 User Guide
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Console Server & Power Switch
USR4204
User Guide
R24.0792.00
Rev 1.2 10/16

USR4204 User Guide
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Contents
Contents .............................................................................................................2
Symbols Used In This User Guide ...........................................................................4
Important Safety Instructions ................................................................................5
Introduction ........................................................................................................6
Overview of Main Features .................................................................................6
Package Contents .............................................................................................7
Physical Features ..............................................................................................8
Getting Started –Local Access.............................................................................10
Physical Installation............................................................................................ 11
Standalone..................................................................................................... 11
Rack Mounting................................................................................................ 11
Connecting Network Devices ............................................................................... 12
Connecting to Network Device Console Ports ...................................................... 12
Connecting To Power Ports ............................................................................... 12
Remote Access .................................................................................................. 13
Setting Up...................................................................................................... 13
Remotely connecting and managing using dialup ................................................ 14
Product Operation .............................................................................................. 15
User interface ................................................................................................. 15
Security features ............................................................................................ 26
Flashing the firmware ......................................................................................... 32
Adding More Ports .............................................................................................. 33
Attaching a Slave USR4204 .............................................................................. 33
Addressing the Slave USR4204 ......................................................................... 33
Security Considerations ................................................................................... 33
Technical Specifications ...................................................................................... 34
Electrical ........................................................................................................ 34
Environmental ................................................................................................ 34
Product Dimensions and Weights ...................................................................... 35
FAQs and Troubleshooting ................................................................................... 36
General.......................................................................................................... 36
Configuring the USR4204 ................................................................................. 36
Remote Management....................................................................................... 36

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Flashing firmware ........................................................................................... 36
Clearing A Forgotten or Disabled Administrator Name and Password...................... 36
Suggested Security Guidelines..........................................................................37
What are "displayable characters"? ...................................................................37
What are programmable characters? ................................................................. 37
Temporarily disabling Security .......................................................................... 37
Is there a maximum number of slave units that can be attached to a master
USR4204? ...................................................................................................... 38
Rackmounting the USR4204 with the back panel facing out .................................. 38
Support ............................................................................................................ 39
Appendix A........................................................................................................ 41
Terminal Port and Serial Port RJ45 Pinout .......................................................... 41
RS-232 Adaptor Pinouts ................................................................................... 42
Straight and Rollover Cables............................................................................. 44
Legal Notice ......................................................................................................45
Warranty .......................................................................................................... 46
Regulatory Information ....................................................................................... 50
FCC Compliance.............................................................................................. 50
UL Listing/CUL Listing...................................................................................... 50
Industry Canada (IC)....................................................................................... 50
CE Compliance................................................................................................ 51
WEEE Compliance ........................................................................................... 51
Copyright Information ........................................................................................ 52

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Symbols Used In This User Guide
This symbol alerts the user to important operating and maintenance
instructions.
This symbol warns the user that there are hazardous voltages within the
product enclosure.
This symbol invites the user to read more technical details.
This symbol identifies helpful user information.
This symbol warns the user to stop, read, and understand critical
information.
This symbol denotes supplemental information.

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Important Safety Instructions
SAVE THESE INSTRUCTIONS
This manual contains instructions and warnings that should be followed
during the installation, operation, and storage of this product. Failure to
heed these instructions and warnings may affect the product warranty.
WARNING: Hazardous Voltage! To reduce the risk of personal
injury from electric shock, do not remove the cover. There are
no field-serviceable or user-serviceable components inside.
Disconnect mains power from the product by unplugging the power cord from either
the electrical outlet or the product. The AC inlet is the main disconnect for removing
power to the product. For products that have more than one AC inlet, to remove
power completely, all AC line cords must be disconnected. The socket-outlet shall be
installed near the equipment and shall be easily accessible.
Disconnect mains power from the USR4204 before servicing equipment powered by
the USR4204.
Do not connect the product to an ungrounded outlet or to extension cords or
adapters that eliminate the connection to ground.
Before installing and using the product, check it for any external damage. If the
product is damaged, do not install or operate the product and contact your service
representative.
The product is designed for indoor use only in a controlled environment away from
excess moisture, temperature extremes, conductive contaminants, dust, or direct
sunlight.
DO NOT operate the product in an explosive atmosphere or in the presence of
flammable gases or fumes.
For continued protection against fire, replace the line fuse(s) only with fuse(s) of the
same voltage and current rating and type.
The total power requirement for equipment connected to the product must not
exceed the maximum output load rating(s).

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Introduction
Overview of Main Features
Out-of-Band Remote Management
Out-of-band remote management uses a secondary communications channel, typically a
pair of dial-up modems, to connect to the management ports of remote equipment and to
control outlets that supply power to the remote equipment. With one USR4204 a single
channel can control up to four management ports and two power ports. The USR4204 allows
a remote manager to select and control ports via a simple menu-driven interface.
Security
The USR4204 allows for one administrator and fifteen user accounts. The administrator can
create, delete, or edit user accounts, and has access to all USR4204 configuration menus.
The administrator can also assign access privileges for individual ports to each user. To
deter unauthorized access the USR4204 is configured to lockout user or administrator
accounts and display a security notification to users and the administrator in the event of
three consecutive failed attempts to log in as a user or administrator.

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Package Contents
1 USR4204
1 VersaPower Kit –Universal Power Supply
1 6-foot RJ45 rollover cable
1 RJ45-to-DB25M adaptor
1 RJ45-to-DB9F adaptor
2 Rackmount brackets
6 Bracket mounting screws
4 Rubber feet
1 Reference Guide

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Physical Features
1. Terminal Port - RS-232 port for connection to modem or computer serial port to
configure and manage the USR4204 and connected devices.
The terminal port supports an RS-232 asynchronous serial DTE connection via an RJ45 jack.
See appendix A for pinout details. Terminal port activity can be monitored using the two
adjacent LEDs. Both LEDs light when the terminal or modem connected to this port signals
that it’s ready to receive or transmit data. For a terminal it is the DTR signal, for a modem it
is the DCD signal. The left LED flickers when data is transmitted from the terminal port, the
right LED flickers when data is received by the terminal port.
2. Serial Ports –Connect RS-232 network devices with RJ45 cables for device
management.
The four serial ports are RS-232 asynchronous serial DCEs presented on RJ45 jacks. See
appendix A for pinout details. Each serial port is represented by two adjacent LEDs, which
light when the port is selected. The left LED flickers when data is transmitted from the serial
port, the right LED flickers when data is received by the serial port.
3. Mains Input Port - Connect a C13 power cord from a nearby power outlet to the mains
input port to provide power to additional network devices.
The mains power input port is an IEC C14 fused inlet, rated for 8 amps maximum.
4. Power Output Ports - Connect power cords from up to two network devices (rated for a
total of 8 amps combined) for individual power management.
The power out ports are IEC C13 outlets, individually rated for 8 amps maximum.
WARNING: The combined power requirement of the equipment
connected to all the USR4204 outputs must not exceed the USR4204
maximum input rating of 8 Amps.
5. External Power Supply Input - Connect the included Versa Power Kit to power the
USR4204.

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The external power supply input delivers operating power to the USR4204 from the external
low voltage power supply that is included with the product.

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Getting Started –Local Access
This section describes how to verify the unit is operational. Once installed, this is also the
setup process for local access. For detailed unit configuration and advanced operating
features see Physical Installation, Remote Access, or Product Operation.
Step 1: Confirm package contents and check system requirements:
Computer terminal with a COM port
Terminal emulation application
Step 2: Connect the VersaPower™Kit to the USR4204
Use the included VersaPower power supply to power the USR4204. The VersaPower power
supply includes blade clips compatible with mains power outlets in North America, UK, and
Europe. Remove the plastic protector from the VersaPower base unit, and slide in the
region-specific clip until it locks into place. Plug the power supply into a mains power outlet
and connect the VersaPower output jack to the USR4204 external power supply input.
Step 3) Open a Terminal Emulation Application
Open a terminal emulation window on the computer and select the COM port corresponding
to the computer’s serial port (usually COM1). Set the port parameters for 9600bps, 8 data
bits, no parity, 1 stop bit.
Refer to the terminal emulation application documentation for details on
setting parameters. Please set your application’s font for Courier, Courier
New, or another fixed character width font to properly display the menus.
Step 4) Connect a PC to the USR4204
Plug the included RJ45-to-DB9F adaptor into the computer’s DB9M serial port. Then connect
the adaptor’s RJ45 socket to the USR4204 terminal port using the included rollover cable.
If the terminal application raised the RS-232 DTR signal during initialization,
the USR4204 terminal port LEDs will light and the USR4204 will automatically
send its Main Menu screen to the terminal at 9600bps, 8N1 when you plug
into the terminal port.
Step 5) Confirm communication with the USR4204
In the terminal emulation window hit ENTER to show the Main Menu screen. If the Main
Menu does not appear on the terminal, remove power from the USR4204 and check the
Troubleshooting section.
You can now see the USR4204 parameter settings or enter any command displayed in the
Main Menu screen.
Congratulations!
The USR4204 is operational and ready to be installed at the equipment site.