Lantronix SLB088411-01 User manual

Part Number 900-510
Revision C October 2013
SLB™ Branch Office Manager User Guide

SLB™ Branch Office Manager User Guide 2
Copyright & Trademark
© 2013 Lantronix, Inc. All rights reserved. No part of the contents of this book may be
transmitted or reproduced in any form or by any means without the written permission of
Lantronix.
Lantronix is a registered trademark of Lantronix, Inc. in the United States and other
countries. SLB, SLC, SLM, SLP, Detector and Spider are trademarks of Lantronix, Inc.
Windows and Internet Explorer are registered trademarks of Microsoft Corporation.
Mozilla and Firefox are registered trademarks of the Mozilla Foundation. Chrome is a
trademark of Google, Inc. Opera is a trademark of Opera Software ASA Corporation
Norway. Safari is a registered trademark of Apple, Inc. All other trademarks and trade
names are the property of their respective holders.
Open Source Software
Some applications are Open Source software licensed under the Berkeley Software
Distribution (BSD) license or the GNU General Public License (GPL) as published by the
Free Software Foundation (FSF). Redistribution or incorporation of BSD or GPL licensed
software into hosts other than this product must be done under their terms. A machine
readable copy of the corresponding portions of GPL licensed source code is available at
the cost of distribution.
Such Open Source Software is distributed WITHOUT ANY WARRANTY, INCLUDING
ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. See the GPL and BSD for details.
A copy of the licenses is available from Lantronix. The GNU General Public License is
available at http://www.gnu.org/licenses/.
Contacts
Lantronix, Inc.
Corporate Headquarters
167 Technology Drive
Irvine, CA 92618, USA
Toll Free: 800-526-8766
Phone: [phone]
Fax: [phone]
Technical Support
Online: www.lantronix.com/support/
Sales Offices
For a current list of our domestic and international sales offices, go to the Lantronix web
site at www.lantronix.com/about/contact.

SLB™ Branch Office Manager User Guide 3
Disclaimer & Revisions
Operation of this equipment in a residential area is likely to cause interference, in which
case the user, at his or her own expense, will be required to take whatever measures
may be required to correct the interference.
Note: This equipment has been tested and found to comply with the limits for
Class A digital device pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in
accordance with this User Guide, may clause interference to radio
communications. Operation of this equipment in a residential area is likely to
cause interference, in which case the user will be required to correct the
interference at his own expense.
The user is cautioned that changes and modifications made to the equipment
without approval of the manufacturer could void the user’s authority to operate
this equipment.
Changes or modifications to this device not explicitly approved by Lantronix will void the
user's authority to operate this device.
The information in this guide may change without notice. The manufacturer assumes no
responsibility for any errors that may appear in this guide.
Date Rev.
Comments
September 2007
A
Initial Release
May 2008
B
New web page design with tabbed menus.
Added support for the following: Sensorsoft devices; SecureID
over Radius; command and status of the SLP power manager
expansion chassis; escape and break sequences for remote
users; password aging, iGoogle Gadget; SNMP v3 encryption;
ability to copy boot bank; host lists for outgoing modem and
direct connection at the CLI; new option for local users to
display a custom menu at login.
October 2013
C
Updated product name and trademark information.
Warranty
For details on the Lantronix warranty replacement policy, please go to our web site at
http://www.lantronix.com/support/warranty/index.html.

SLB™ Branch Office Manager User Guide 4
Table of Contents
Copyright & Trademark___________________________________________________ 2
Open Source Software ___________________________________________________ 2
Contacts ______________________________________________________________ 2
Sales Offices___________________________________________________________ 2
Disclaimer & Revisions ___________________________________________________ 3
Disclaimer & Revisions ___________________________________________________ 3
Warranty ______________________________________________________________ 3
1: About This Guide 10
Purpose and Audience __________________________________________________ 10
Chapter Summaries ____________________________________________________ 10
Additional Documentation________________________________________________ 11
2: Overview 12
Features _____________________________________________________________ 12
Console Management_______________________________________________________12
Power Management Outlets for Power Connectivity________________________________12
Ethernet Switch____________________________________________________________12
Integration with Other Secure IT Management Products_____________________________12
Meets Needs of Branch Offices________________________________________________13
Typical Equipment__________________________________________________________14
Types of Business__________________________________________________________14
Benefits ______________________________________________________________ 14
Models_______________________________________________________________ 15
System Features_______________________________________________________ 16
Protocols Supported ________________________________________________________17
Access Control ____________________________________________________________17
Power Outlet Control________________________________________________________17
Device Port Buffer__________________________________________________________17
Configuration Options _______________________________________________________17
Application Example ____________________________________________________ 18
Hardware Features _____________________________________________________ 19
Serial Connections _________________________________________________________20
Network Connections _______________________________________________________21
PC Card Interface __________________________________________________________21
3: Installation 22
What’s in the Box ______________________________________________________ 22
Product Information Label ____________________________________________________23
Technical Specifications _________________________________________________ 23
Physical Installation_____________________________________________________ 24
Connecting to a Device Port __________________________________________________25
Connecting to a Network Port _________________________________________________25
Connecting a Terminal ______________________________________________________25
Connecting to a Power Source ________________________________________________26

SLB™ Branch Office Manager User Guide 5
Connecting Devices to Power Outlets___________________________________________26
Connecting Devices to the 8-Port Ethernet Switch _________________________________27
Typical Installations_____________________________________________________ 27
4: Quick Setup 29
IP Address____________________________________________________________ 29
Method #1 Using the Front Panel Display ___________________________________ 30
Before You Begin __________________________________________________________30
Front Panel LCD Display and Pushbuttons_______________________________________30
Navigating ________________________________________________________________31
Entering the Settings________________________________________________________31
Restoring Factory Defaults ___________________________________________________33
Method #2 Quick Setup on the Web Page ___________________________________ 33
Method #3 Quick Setup on the Command Line Interface________________________ 37
Next Step ____________________________________________________________ 39
5: Web and Command Line Interfaces 40
Web Interface _________________________________________________________ 40
Logging in ________________________________________________________________42
Logging off________________________________________________________________42
Web Page Help____________________________________________________________42
Command Line Interface_________________________________________________ 43
Logging in ________________________________________________________________43
Logging out _______________________________________________________________43
Command Syntax __________________________________________________________44
Command Line Help ________________________________________________________45
Tips _____________________________________________________________________45
General CLI Commands _____________________________________________________46
6: Basic Parameters 47
Requirements _________________________________________________________ 47
Ethernet Counters__________________________________________________________51
Network Commands ________________________________________________________52
IP Filter ______________________________________________________________ 53
Viewing IP Filters___________________________________________________________53
Enabling IP Filters__________________________________________________________54
Configuring IP Filters________________________________________________________54
Updating an IP Filter ________________________________________________________56
Deleting an IP Filter_________________________________________________________56
Mapping a Rule Set_________________________________________________________56
IP Filter Commands ____________________________________________________ 57
Routing ______________________________________________________________ 58
Equivalent Routing Commands________________________________________________59
7: Services 60
System Logging and Other Services _______________________________________ 60
SSH/Telnet/Logging ____________________________________________________ 60
SNMP _______________________________________________________________ 64
SNMP, SSH, Telnet, and Logging Commands ____________________________________66

SLB™ Branch Office Manager User Guide 6
NFS and SMB/CIFS ____________________________________________________ 69
NFS and SMB/CIFS Commands_______________________________________________71
Secure Lantronix Network________________________________________________ 72
Secure Lantronix Network Commands __________________________________________76
Date and Time_________________________________________________________ 76
Date and Time Commands ___________________________________________________78
8: Device Ports 80
Connection Methods____________________________________________________ 80
Permissions___________________________________________________________ 81
Device Status _________________________________________________________ 81
Global Port Settings ____________________________________________________ 81
Global Commands__________________________________________________________83
Global Commands__________________________________________________________84
Device Ports – Settings__________________________________________________ 84
Port Status and Counters ____________________________________________________91
Device Ports – SLP Power Manager____________________________________________91
Device Port – Sensorsoft Device_______________________________________________93
Device Port Commands______________________________________________________94
Device Commands _________________________________________________________96
Interacting with a Device Port _____________________________________________ 97
Device Ports – Logging__________________________________________________ 98
Local Logging _____________________________________________________________98
NFS File Logging___________________________________________________________99
PC Card Logging___________________________________________________________99
Email/SNMP Notification _____________________________________________________99
Sylog Logging ____________________________________________________________100
Logging Commands _______________________________________________________103
Console Port _________________________________________________________ 104
Console Port Commands ___________________________________________________105
Power Outlets ________________________________________________________ 106
Power Outlet Commands ___________________________________________________108
Host Lists ___________________________________________________________ 108
Host List Commands_______________________________________________________112
9: PC Cards 114
Storage Settings __________________________________________________________115
Data Settings_____________________________________________________________118
ISDN Settings ____________________________________________________________119
GSM/GPRS Settings_______________________________________________________119
Text Mode _______________________________________________________________120
PPP Mode_______________________________________________________________120
IP Settings_______________________________________________________________121
PC Card Commands_______________________________________________________122
PC Card Modem Commands ________________________________________________123
10: Connections 125
Typical Setup Scenarios for the SLB Device ________________________________ 126
Terminal Server___________________________________________________________126

SLB™ Branch Office Manager User Guide 7
Remote Access Server _____________________________________________________126
Reverse Terminal Server____________________________________________________127
Multiport Device Server_____________________________________________________127
Console Server ___________________________________________________________127
Connection Configuration _______________________________________________ 129
Connection Commands_____________________________________________________131
11: User Authentication 134
Authentication Commands __________________________________________________136
Local and Remote Users _______________________________________________ 137
Local/Remote User Settings _____________________________________________ 138
Local Users Commands ____________________________________________________143
Local User Rights Commands________________________________________________144
Remote User Commands ___________________________________________________144
NIS ________________________________________________________________ 145
NIS Commands___________________________________________________________148
LDAP_______________________________________________________________ 149
LDAP Commands _________________________________________________________153
RADIUS_____________________________________________________________ 154
RADIUS Commands _______________________________________________________157
Kerberos ____________________________________________________________ 158
Kerberos Commands ______________________________________________________162
TACACS+ ___________________________________________________________ 163
TACACS+ Commands _____________________________________________________166
SSH Keys ___________________________________________________________ 166
Imported Keys____________________________________________________________167
Exported Keys____________________________________________________________167
SSH Commands __________________________________________________________172
Custom User Menus ___________________________________________________ 174
Custom User Menu Commands ______________________________________________174
Example ________________________________________________________________176
12: Maintenance and Operation 179
SLB Maintenance _____________________________________________________ 179
Firmware & Configurations – Web Sessions ________________________________ 184
Firmware & Configurations – SSL Certificate ________________________________ 184
iGoogle Gadgets______________________________________________________ 186
Administrative Commands___________________________________________________187
System Logs _________________________________________________________ 190
System Log Command _____________________________________________________193
Audit Log____________________________________________________________ 193
Diagnostics __________________________________________________________ 194
Diagnostic Commands _____________________________________________________198
Status/Reports _______________________________________________________ 199
Status Commands_________________________________________________________202
Events ______________________________________________________________ 202
Events Commands ________________________________________________________204

SLB™ Branch Office Manager User Guide 8
13: Application Examples 206
Telnet/SSH to a Remote Device__________________________________________ 207
Dial-in (Text Mode) to a Remote Device____________________________________ 208
Local Serial Connection to Network Device via Telnet_________________________ 210
14: Command Reference 212
Introduction to Commands ______________________________________________ 212
Command Syntax _________________________________________________________212
Command Line Help _______________________________________________________213
Tips ____________________________________________________________________213
Administrative Commands ______________________________________________ 214
Audit Log Commands __________________________________________________ 220
Authentication Commands ______________________________________________ 220
Kerberos Commands __________________________________________________ 221
LDAP Commands _____________________________________________________ 222
Local Users Commands ________________________________________________ 223
NIS Commands_______________________________________________________ 226
RADIUS Commands___________________________________________________ 227
TACACS+ Commands _________________________________________________ 228
User Permissions Commands ___________________________________________ 228
CLI Commands_______________________________________________________ 231
Connection Commands ________________________________________________ 232
Console Port Commands _______________________________________________ 235
Custom User Menu Commands __________________________________________ 236
Date and Time Commands______________________________________________ 237
Device Commands ____________________________________________________ 238
Device Port Commands ________________________________________________ 239
Diagnostic Commands _________________________________________________ 242
End Device Commands ________________________________________________ 244
Events Commands ____________________________________________________ 245
Host List Commands___________________________________________________ 246
IP Filter Commands ___________________________________________________ 247
Logging Commands ___________________________________________________ 248
Network Commands ___________________________________________________ 249
NFS and SMB/CIFS Commands _________________________________________ 251
PC Card Storage Commands____________________________________________ 253
PC Card Modem Commands ____________________________________________ 254
Power Commands_____________________________________________________ 255
Routing Commands ___________________________________________________ 256
Services Commands___________________________________________________ 257
SLB Network Commands _______________________________________________ 258
SSH Key Commands __________________________________________________ 259
Status Commands_____________________________________________________ 261
System Log Commands ________________________________________________ 262
A: Bootloader 264

SLB™ Branch Office Manager User Guide 9
Accessing the Bootloader _______________________________________________ 264
Bootload Commands___________________________________________________ 264
User Commands __________________________________________________________264
Administrator Commands ___________________________________________________265
B: Security Considerations 266
Security Practice______________________________________________________ 266
Factors Affecting Security_______________________________________________ 266
C: Safety Information 267
Safety Precautions ________________________________________________________267
D: Adapters and Pinouts 269
E: Protocol Glossary 275
F: Compliance Information 278
List of Figures
Figure 2-1. SLB 8 Front...........................................................................................................16
Figure 2-2. SLB 8 Back — 8 Device Ports, 4 Power Outlets, 8 Switch Ports;
1 AC Power Supply .........................................................................................................16
Figure 2-3. Device Port Connections ......................................................................................20
Figure 2-4. Console Port Connection......................................................................................20
Figure 2-5. Network Connection..............................................................................................21
Figure 2-6. PC Card Interface .................................................................................................21
Figure 3-1. CAT 5 Cable Connection ......................................................................................25
Figure 3-2. Power Outlets........................................................................................................26
Figure 3-3. 8-Port Ethernet Switch..........................................................................................27
Figure 3-4. SLB Installation Using the Integrated Ethernet Switch .........................................28
Figure 3-5. SLB Installation Using a Managed Switch............................................................28
Figure 4-1. Front Panel LCD Display and Five Pushbuttons (Enter, Up, Down, Left, Right)..30
Figure 4-2. Beginning of Quick Setup Script...........................................................................37
Figure 4-3. Completed Quick Setup........................................................................................39
Figure 5-1. Web Page Layout..................................................................................................41
Figure 13-1. SLB Branch Office Manager Configuration.......................................................206
Figure 13-2. Remote User Connected to a SUN Server via the SLB Device .......................207
List of Tables
Table 2-1. SLB Models............................................................................................................15
Table 3-1. SLB Technical Specifications.................................................................................23
Table 4-1. Methods of Assigning an IP Address.....................................................................29
Table 4-2. Front Panel Setup Options with Associated Parameters.......................................31
Table 5-1. Actions and Category Options ...............................................................................44
Table 14-1. Actions and Category Options ...........................................................................213

SLB™ Branch Office Manager User Guide 10
1: About This Guide
Purpose and Audience
This guide provides the information needed to install, configure, and use the Lantronix®
SLB™ branch office manager. The SLB branch office manager is for IT professionals
who must remotely and securely configure and administer servers, routers, switches,
telephone equipment, or other devices equipped with a serial port for facilities that are
typically remote branch offices or "distributed" IT locations.
Chapter Summaries
The remaining chapters in this guide include:
Chapter
Summary
2: Overview Describes the SLB models, their main features, and the protocols
they support.
3: Installation Provides technical specifications; describes connection formats
and power supplies; provides instructions for installing the SLB
branch office manager in a rack.
4: Quick Setup Provides instructions for getting your SLB device up and running
and for configuring required settings.
5: Web and Command Line
Interfaces Describes the web and command line interfaces available for
configuring the SLB branch office manager.
Note: The configuration chapters (6-12) provide detailed
instructions for using the web interface and include equivalent
command line interface commands.
6: Basic Parameters Provides instructions for configuring network ports, firewall and
routing settings, and the date and time.
7: Services Provides instructions for enabling and disabling system logging,
SSH and Telnet logins, SNMP, SMTP, and the date and time.
8: Device Ports Provides instructions for configuring global device port settings,
individual device port settings, and console port settings.
9: PC Cards Provides instructions for using the PC Card slot.
10: Connections Provides instructions for configuring connections and viewing,
updating, or disconnecting a connection.
11: User Authentication Provides instructions for enabling or disabling methods that
authenticate users who attempt to log in via SSH, Telnet, or the
console port. Provides instructions for creating custom menus.

1: About This Guide
SLB™ Branch Office Manager User Guide 11
Chapter Summary
12: Maintenance and
Operation Provides instructions for upgrading firmware, viewing system logs
and diagnostics, generating reports, and defining events. Includes
information about web pages and commands used to shut down
and reboot the SLB device.
13: Application Examples Shows how to set up and use the SLB branch office manager in
three different configurations.
14: Command Reference Lists and describes all of the commands available on the SLB
command line interface
A: Bootloader Lists and describes the commands available for the bootloader
command line interface.
B: Security Considerations Provides tips for enhancing SLB security.
C: Safety Precautions Lists safety precautions for using the SLB branch office manager.
D: Adapters and Pinouts Includes adapter pinout diagrams.
E: Protocol Glossary Lists the protocols supported by the SLB unit with brief
descriptions.
F: Compliance Information Provides information about the SLB device’s compliance with
industry standards.
Additional Documentation
Visit the Lantronix Web site at www.lantronix.com/support/documentation for the latest
documentation and the following additional documentation.
SLB Branch Office Manager
Quick Start Describes the steps for getting the SLB branch office
manager up and running.
SLB Online Help for the
Command Line Interface Provides online help for configuring the SLB device using
commands.
SLB Online Help for the Web
Interface Provides online help for configuring the SLB branch office
manager using the web page.

SLB™ Branch Office Manager User Guide 12
2: Overview
The SLB branch office manager enables IT System Administrators to manage remote
servers and IT infrastructure equipment securely over the Internet. This innovative device
combines the capabilities of the award-winning Lantronix® SLC™ console manager with
remote power management and an Ethernet switch into a compact, 1U rack-mountable
appliance.
Features
Console Management
8 serial ports for console connectivity
Enables system administrators to remotely manage Linux, Unix, and
Windows 2003 servers, routers, switches, telecom, and building access
equipment
Provides data logging, monitoring, and secure access control via the Internet
Power Management Outlets for Power Connectivity
4 outlets for power connectivity
Provides ability to control power individually to all attached equipment
Provides on/off/reboot control
Ensures safe power distribution and reduces in-rush current overload
Ethernet Switch
8 ports for network connectivity
Provides additional flexibility and scalability
Offers convenience
Reduces rack space
Integration with Other Secure IT Management Products
Can be combined with the Lantronix® Spider™ Distributed KVM to provide
a complete all-in-one “distributed IT” management solution.
Can integrate seamlessly with the Lantronix® SLM™ management appliance
and brings the “Branch to the Enterprise” for a complete end-to-end OOBI
enterprise management solution.

2: Overview
SLB™ Branch Office Manager User Guide 13
Meets Needs of Branch Offices
Designed to meet the specific needs of the remote branch office, the SLB branch office
manager conserves rack space and reduces costs by enabling system administrators at
a main corporate facility to manage the IT equipment distributed among branch offices
simply and cost-effectively.
Branch offices are facilities that are typically remote or “distributed IT” locations, likely
located off-site of corporate headquarters or large-scale enterprise facilities. These
distributed facilities typically do not have an on-site maintenance staff or IT System
Administrator.
Typically, the branch office environment has some of the following characteristics:
Space is limited to 1U rack space or shelf mounted desktop unit
Closet-mounted or wall-attached rack
Limited air and power conditioning
Limited number of network devices and servers
No on-site maintenance staff
Ethernet or dial-up modem access is required

2: Overview
SLB™ Branch Office Manager User Guide 14
Typical Equipment
You can configure, administer, and manage IT equipment in a variety of ways, but most
devices have one method in common: an RS-232 serial port, sometimes called a
console, auxiliary, or management port. These ports are often accessed directly by
connecting a terminal or laptop to them, meaning that the user must be in the same
physical location as the equipment. SLB devices give the user a way to access them
remotely from anywhere there is a network or modem connection.
The SLB can access and administer many types of equipment, such as:
Servers: Unix, Linux, Windows 2003, and others
Networking equipment: Routers, switches, storage networking
Telecom: PBX, voice switches
Other systems with serial interfaces: Heating/cooling systems,
security/building access systems, UPS, medial device.
Types of Business
The SLB branch office manager is used in many types of business, for example:
Banking and finance
Insurance companies
Healthcare
Retail Sales
Information Technology
Education and campus style facilities
Hospitality
Manufacturing Facilities
Benefits
The key benefits of using the SLB branch office manager:
Saves space: Compact design merges the functionality of three solutions into a
1U rack solution, reducing required rack space and total cost of ownership.
Saves money: Enables remote management and troubleshooting without
sending a technician onsite, resulting in reduced travel costs and increased
network uptime.
Saves time: Provides instant access and reduces response time, improving
efficiency.
Simplifies access: Enables 24/7 access to your equipment securely and
remotely after hours and on weekends and holidays—without having to schedule
visits or arrange for off-hour access.
Protects assets: Provides the highest levels of encryption and security features
(authentication, authorization, and IP filters) to ensure that your IT infrastructure
and data assets are protected.

2: Overview
SLB™ Branch Office Manager User Guide 15
The SLB device also provides features such as convenient text menu systems, break-
safe operation, port buffering (logging), remote authentication, and Secure Shell (SSH)
access. Dial-up modem support ensures access when the network is not available.
Models
Two SLB models have the following hardware components:
Two Models: The SLB branch office manager is available in a 100-120 VAC
output model (SLB088411-01) with NEMA 5-15R type outlets and a 208-240
VAC output model (SLB088412-01) with IEC60320/C13 type outlets.
Power Outlets:Each model has four outlets that allow power management
and control (on/off/reboot) of the attached equipment using a simple web or
command line interface.
Serial Device Ports: Eight serial RS-232C (EIA-232) device ports are for
remote console management of the attached equipment. These match the
RJ45 pin-outs of the console ports of many popular devices found in a
network environment, and where different can be converted using Lantronix
adapters. See D: Adapters and Pinouts for more information on serial
adapters and pin-outs.
Unmanaged Ethernet Switch: A built-in 8-port unmanaged Ethernet switch
provides convenience and helps further reduce required rack space.
Ports and Modem Slots: The SLB branch office manager has two 10/100
Ethernet ports (referred to in this User Guide as Eth1 and Eth2) and a front
panel serial console port (RJ45). The SLB device has two 32-bit CardBus
(PC card) slots to support storage cards or a PC Card modem for dial-in
access. The list of supported cards is available on the Lantronix website.
Table 2-1. SLB Models
Part Number Model and Description
SLB088411-01 SLB branch office manager, 8 device ports, 8 Ethernet switch
ports, 4 power outlets (100-120 VAC, NEMA 5-15R type), 1 AC
power supply
SLB088412-01 SLB branch office manager, 8 device ports, 8 Ethernet switch
ports, 4 power outlets (208-240 VAC, IEC60320/C13 type), 1
AC power supply

2: Overview
SLB™ Branch Office Manager User Guide 16
Figure 2-1. SLB 8 Front
Figure 2-2. SLB 8 Back — 8 Device Ports, 4 Power Outlets, 8 Switch Ports; 1 AC Power Supply
System Features
The SLB firmware has the following basic capabilities:
Connects up to eight RS-232 serial consoles
Controls power (on/off/reboot) of up to four attached devices
10Base-T/100Base-TX Ethernet network compatibility
Buffer logging to file
Email and SNMP notification
ID/Password security, configurable access rights
Secure shell (SSH) security; supports numerous other security protocols
Network File System (NFS) and Common Internet File System (CIFS) support
Telnet or SSH to a serial port by IP address per port or by IP address and TCP
port number
Configurable user rights for local and remotely authenticated users
Support for an internal PC Card modem or an external modem
Sun break-safe (no unintentional break ever sent to attached servers)
Simultaneous access on the same port-- "listen" and "direct" connect mode
Local access through a console port
Web administration (using most browsers)
Two-Line
LCD Display
Front Panel
Pushbuttons
1U Tall, Self-Contained
Rack-Mountable Chassis
Two 10/100 Network Ports
RS-232 Device Ports (1-8)
AC Power Input
Two PC Card Slots
Console Port
(RS-232)
Four Power Outlets
8 Switch Ports

2: Overview
SLB™ Branch Office Manager User Guide 17
Protocols Supported
The SLB branch office manager supports the TCP/IP network protocol as well as:
SSH, Telnet, PPP, NFS, and CIFS for connections in and out of the SLB device
SMTP for mail transfer
DNS for text-to-IP address name resolution
SNMP for remote monitoring and management
FTP and SFTP for file transfers and firmware upgrades
TFTP and HTTPS for firmware upgrades
DHCP and BOOTP for IP address assignment
HTTPS (SSL) for secure browser-based configuration
NTP for time synchronization
LDAP, NIS, RADIUS, CHAP, PAP, Kerberos, and TACACS+ for user
authentication
For brief descriptions of these protocols, see Appendix Protocol Glossary.
Access Control
The system administrator controls access to attached servers or devices by assigning
access rights to up to 128 user profiles. Each user has an assigned ID, password, and
access rights. Other user profile access options may include externally configured
authentication methods such as RADIUS, TACACS+, NIS, and LDAP.
Power Outlet Control
With the SLB branch office manager’s built-in power management capability, system
administrators can remotely control the power (on/off/reboot) individually to all IT
equipment in the branch office, ensure safe power distribution, and reduce “in-rush”
current overload. If SNMP traps are enabled, a trap (alarm) is sent if the total current for
all outlets exceeds a threshold.
Device Port Buffer
The SLB device supports real-time data logging for each device port. The port can save
the data log to a file, send an email notification of an issue, or take no action.
You can define the path for logged data on a port-by-port basis, configure file size and
number of files per port for each logging event, and configure the device log to send an
email alert message automatically to the appropriate parties indicating a particular error.
Configuration Options
You may use the backlit front-panel LCD display for initial setup and configuration and to
view current network, console, and date/time settings, and get power outlet status.
Both a web interface viewed through a standard browser and a command line interface
(CLI) are available for configuring the SLB settings and monitoring performance.

2: Overview
SLB™ Branch Office Manager User Guide 18
Application Example
The figure below is an example deployment. An SLB branch office manager is deployed
in each branch office and an (optional) SLM management appliance at the main office.
The branch offices are interconnected (always on) by VPN routers overlaid on the
Internet, and also interconnected (on demand) through the analog phone system.
Note: The SLB branch office manager can also be the authentication gateway to a
network architecture that is not VPN-based.
The SLB device provides Ethernet switch service (blue), remotely controlled and
monitored AC power (orange), console management (green), and traditional, wired
telephone network (PSTN) access (yellow).

2: Overview
SLB™ Branch Office Manager User Guide 19
A system administrator, upon losing IP connectivity to a server, takes the following steps:
Views the server’s Ethernet interface state information provided by the SLB
branch office manager.
If the Ethernet interface is faulty, connects to the server’s console port by means
of the SLB web page or CLI (optionally via the SLM management appliance) and
checks the server’s system parameters.
If the server is not responsive on the console port, commands the SLB branch
office manager to reboot the server’s power.
If the entire branch office loses IP connectivity, dial in to the SLB device to
perform the diagnostic functions
Hardware Features
The SLB hardware includes the following:
1U-tall (1.75 inch) rack-mountable appliance
2 10Base-T/100Base-TX network ports
1 front panel serial console port for VT100 terminal or PC with emulation
2 PC Card slots
Front panel LCD display and keypad
256 KB-per-port buffer memory for serial device ports
8-port unmanaged Ethernet switch with auto MDI/MDIX function
8 RS-232 serial device ports connected via Category 5 (RJ45) wiring
AC Power Input:
−SLB088411-01 model:
- (1) IEC-60320/C20 inlet, 100-120 VAC, 50/60Hz
- (20A Branch Circuit) 16A max input current2
- (15A Branch Circuit) 12A max input current1
−SLB088412-01 model:
- (1) IEC-60320/C20 inlet, 100-240 VAC, 50/60Hz
- (20A Branch Circuit) 15A max input current
Power Outlets (Total Switched Power):
−SLB088411-01 model:
- (4) NEMA 5-15R outlets, 100-120 VAC, 50/60Hz
- (20A Branch Circuit) 15A max per outlet, 16A total2
- (15A Branch Circuit) 12A max per outlet, 12A total1
−SLB088412-01 model
- (4) IEC-60320/C13 outlets, 208-240 VAC, 50/60Hz
- (20A Branch Circuit) 10A max per outlet, 15A total
Note: The outlet voltage equals the input voltage.
Convection cooled, silent operation, low power consumption
Note: For more detailed information, see Technical Specifications on
page 23.
1The max input/output current is de-rated to 12A when using the supplied NEMA
5-15P (15A) cable (p/n SLPP012310-01).

2: Overview
SLB™ Branch Office Manager User Guide 20
2 The max input/output current is de-rated to 16A when using the optional NEMA
5-20P (20A) cable (p/n SLPP012410-01, SLPP012510-01, SLPP012610-01).
Serial Connections
All devices attached to the device ports and the console port must support the RS-232C
(EIA-232) standard. Category 5 cabling with RJ45 connections is used for the device port
connections and for the console port. (For pinout information, see D: Adapters and
Pinouts.)
Note: RJ45 to DB9/DB25 adapters are available from Lantronix.
Device ports and the console port support eight baud-rate options: 300, 600, 1200, 2400,
4800, 9600, 19200, 38400, 57600, and 115200 baud.
Figure 2-3. Device Port Connections
Figure 2-4. Console Port Connection