Sena UPSLink Series User manual

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UPS Web/SNMP Card
UPSLink
User Guide
Version 2.2.1
2003-07-09

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User Guide for the UPSLink
Version 2.2.1
Firmware version 2.2.1
Printed in Korea
Copyright Information
Copyright 2002-2003, Sena Technologies, Inc. All rights reserved.
Sena Technologies reserves the right to make any changes and improvements to its product without
providing prior notice.
Trademark Information
HelloDevice™ and UPSLink™ are trademarks of Sena Technologies, Inc.
Windows® is a registered trademark of Microsoft Corporation.
Ethernet® is a registered trademark of XEROX Corporation.
Notice to Users
Proper back-up systems and necessary safety devices should be utilized to protect against injury,
death or property damage due to system failure. Such protection is the responsibility of the user.
This device is not approved for use as a life-support or medical system.
Any changes or modifications made to this device without the explicit approval or consent of Sena
Technologies will void Sena Technologies of any liability or responsibility of injury or loss caused by
any malfunction.
Technical Support
Sena Technologies, Inc.
210 Yangjae-dong, Seocho-gu
Seoul 137-130, Korea
Tel: [phone]
Fax: [phone]
E-Mail: [e-mail]
Website: http://www.sena.com

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Revision history
Date Part number Description
2003-04-30 v.2.0.0 written by UIS
2003-05-02 v.2.0.1 revise candidate by KCY,
2003-05-13 v.2.0.2 revised done by KCY
2003-05-26 v.2.1.1 revised by UIS with firmware upgrade to 2.1.0
2003-07-09 v.2.2.1 revised by UIS

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Contents
1. Introduction 6
1.1. Overview...............................................................................................................6
1.2. Package check list.................................................................................................7
1.3. Product specification .............................................................................................8
1.4. Terminologies and acronyms .................................................................................9
2. Getting Started 11
2.1. Panel layout ........................................................................................................ 11
2.1.1. UPSLink panel layout.......................................................................................... 11
2.2. Connecting hardware ..........................................................................................12
2.2.1. Connecting power ...............................................................................................12
2.2.2. Connecting to the network...................................................................................12
2.2.3. Connecting UPS to the UPSLink..........................................................................13
2.3. Accessing the UPSLink.......................................................................................14
2.3.1. Using system console..........................................................................................14
2.3.2. Using Telnet........................................................................................................15
2.4. Accessing web Interface......................................................................................16
3. UPS management 18
3.1. UPS information..................................................................................................18
3.2. UPS status..........................................................................................................19
3.3. UPS graphics – overall........................................................................................19
3.4. UPS graphics – gauge.........................................................................................20
3.5. UPS configuration ...............................................................................................21
3.6. UPS control.........................................................................................................22
3.7. UPS alarm log.....................................................................................................23
3.8. UPS serial program.............................................................................................24
4. Network configuration 25
4.1. IP configuration ...................................................................................................25
4.1.1. Using static IP address........................................................................................26
4.1.2. Using DHCP........................................................................................................27
4.1.3. Using PPPoE ......................................................................................................28
4.2. SNMP configurations...........................................................................................29
4.2.1. MIB-II system objects configuration .....................................................................30
4.2.2. Access control configuration................................................................................30
4.2.3. Trap receiver configuration..................................................................................30
4.2.4. Management using SNMP...................................................................................31
4.3. Dynamic DNS configuration.................................................................................32

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4.4. SMTP configuration.............................................................................................33
4.5. Access control.....................................................................................................33
4.6. SYSLOG server configuration..............................................................................35
4.7. NFS server configuration.....................................................................................36
4.8. Ethernet configuration .........................................................................................36
5. Serial port configuration 38
5.1. UART configuration.............................................................................................38
6. System status and log 39
6.1. System status......................................................................................................39
6.2. System log configuration .....................................................................................39
7. System administration 41
7.1. User administration..............................................................................................41
7.2. Device name configuration..................................................................................43
7.3. Language............................................................................................................44
7.4. Date and time settings.........................................................................................44
7.5. Factory default reset............................................................................................45
7.6. Firmware upgrade ...............................................................................................45
Appendix A. Connections 49
A.1. Ethernet pin outs.................................................................................................49
A.2. Serial port pin outs...............................................................................................49
A.3. Ethernet wiring diagram.......................................................................................50
A.4. Serial wiring diagram...........................................................................................50
Appendix B. Well-known port numbers 51
Appendix C. Guide to the Bootloader menu program 52

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1. Introduction
1.1. Overview
The UPSLink is an embedded Linux-based Web/SNMP card for UPS. The UPSLink provides SNMP,
HTTP and Telnet compatibility allowing those who manage power utilities of any equipments that
demand fail-safe power such as servers, routers and other networking devices to monitor and control
their equipments anywhere on the network.
Integrative standard
By utilizing standard MIB (Management Information Base), cooperative management of UPS with any
management software such as HP OpenView, Sun NetManager and IBM NetView is enabled. The
UPSLink fully complies with RFC1628 Industry standard UPS MIB to achieve comprehensive remote
UPS management
Easy style web menu
The web menus of the UPSLink are well organized and stylish. The graphical presentation of the UPS
status helps users to perceive the situation at a glance. Also, rich java script tools are supported to
avoid users’ mal-operation in each page.
Secure management
The UPSLink has many features regarding secure management of the device like as user ID and
Password authentication, configurable access control for Web or Telnet by IP filtering and HTTPS.
Roomy customizability
User may customize RS232 UPS protocol and web menus. Sena provides extensive protocol
customization tool that includes library functions, template codes, and a complete example for Sena
UPS serial protocol and fine manuals. The UPSLink is multilingual on its web interface. The UPSLink
is ready to support any languages on earth.
Network connectivity
The UPSLink supports open network protocols such as TCP/IP, UDP and PPPoE (PPP-over-Ethernet),
allowing simultaneous equipment management over either a DSL-based broadband Internet
connection, or a conventional LAN (Local Area Network) environment. In-Band management is
provided using a 10/100 Base-TX Ethernet network, whereas the Out-of-Band management is done
via broadband access. A separate protocol is provided for floating IP environments (Broadband or
Dynamic DNS) to allow access to the UPSLink via a domain name.

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1.2. Package check list
UPSLink100:
- 110~230 VDC power adaptor
- Serial console cable
- CD-ROM, including software and manuals

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1.3. Product specification
Smart UPS with serial data port
3-phase UPS support
User customizable serial protocol and behavior
Real time delivery of UPS alarm via SNMP trap, SNMP notification and Email
Monitor and control the UPS via SNMP, Web and Telnet
UPS
RFC 1628 UPS-MIB fully compliant
RS232 with DB9 female connector
Serial speeds 1200bps to 230Kbps
Flow Control:
None, Hardware RTS/CTS, Software Xon/Xoff
Serial interfaces
Signals:
RS232 Rx, Tx, RTS, CTS, DTR, DSR, DCD, GND
10/100 Base Ethernet with RJ45 Ethernet connectorNetwork Interface Supports static and dynamic IP address
Diagnostic LED Power
Ready
Serial Rx/Tx for serial port
10/100 Base, Link, Act for LAN port
Protocols ARP, IP/ICMP, TCP, Telnet,
DNS, Dynamic DNS, HTTP, HTTPS,
SMTP, SMTP with Authentication, pop-before SMTP,
DHCP client, NTP, PPPoE,
SNMP v1 & v2c
MIB MIB II (RFC 1213)
UPS MIB (RFC 1628)
User ID & Password
User-level control with discriminated privileges
HTTPS
Security
IP address filtering
Serial protocol
Web menu
User
customizability Language (upon request)
Serial console port, Telnet, Web, HelloDevice Manager, SNMP
System logging
Automatic email delivery of system log
To RAM disk or NFS server or syslog server
System statistics
Full-featured system status display
Management
Firmware
Downloadable via Telnet , serial console or Web interface
Environmental Operating temperature: 0 ~ 55 oC
Storage temperature: -4 ~ 66 oC
Power 5VDC, 1.5A @ 5V
Dimension
L x W x H 100 x 72 x 25 (mm)
3.9 x 1.8 x 1.0 (in.)
Weight (g) 240
Certification FCC, CE, MIC
Warranty 5-year limited warranty

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1.4. Terminologies and acronyms
This section will define commonly used terms in this manual. These terms are related to networking,
and defined in regards to their use with UPSLink.
MAC address
On a local area network or other network, the MAC (Media Access Control) address is the computer's
unique hardware number. (On an Ethernet LAN, it is the same as the Ethernet address.)
It is a unique 12-digit hardware number, which is composed of 6-digit OUI (Organization Unique
Identifier) number and 6-digit hardware identifier number. The UPSLink has the following MAC
address template: 00-01-95-xx-xx-xx. The MAC address can be found on the bottom of the original
package.
Host
A user’s computer connected to the network
Internet protocol specifications define "host" as any computer that has full two-way access to other
computers on the Internet. A host will have a specific "local” or “host number" that, together with the
network number, forms its unique IP address.
Session
A series of interactions between two communication end points that occur during the span of a single
connection
Typically, one end point requests a connection with another specified end point. If that end point
replies, agreeing to the connection, the end points take turns exchanging commands and data ("talking
to each other"). The session begins when the connection is established at both ends and terminates
when the connection is ended.

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ISP Internet Service Provider
PC Personal Computer
NIC Network Interface Card
MAC Media Access Control
LAN Local Area Network
UTP Unshielded Twisted Pair
ADSL Asymmetric Digital Subscriber Line
ARP Address Resolution Protocol
IP Internet Protocol
ICMP Internet Control Message Protocol
UDP User Datagram Protocol
TCP Transmission Control Protocol
DHCP Dynamic Host Configuration Protocol
SMTP Simple Mail Transfer Protocol
FTP File Transfer Protocol
PPP Point-To-Point Protocol
PPPoE Point-To-Point Protocol over Ethernet
HTTP HyperText Transfer Protocol
DNS Domain Name Service
DDNS Dynamic Domain Name Service
SNMP Simple Network Management Protocol
NTP Network Time Protocol
UART Universal Asynchronous Receiver/Transmitter
Bps Bits per second (baud rate)
CTS Clear to Send
DSR Data Set Ready
DTR Data Terminal Ready
RTS Request To Send
Table 1-1 Acronym Table

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2. Getting Started
This chapter describes how to set up and configure the UPSLink.
- 2.1 Panel layout explains the layout of the panel and LED indicators.
- 2.2 Connecting hardware describes how to connect the power, the network, and the UPS to
the UPSLink.
- 2.3 Accessing the UPSLink describes how to access the console port using a serial console or
a Telnet or Web menu from remote location.
The following items are required to get started.
- A power adaptor and a cable (included in the package)
- A console cables (included in the package)
- An Ethernet cable.
- A PC with Network Interface Card (hereafter, NIC) and/or a RS232 serial port.
2.1. Panel layout
2.1.1. UPSLink panel layout
The UPSLink 100 has six LED indicator lamps to display the status, as shown in Figure 2-1. The first
three lamps on the upper side indicate Power, Ready and Serial Rx/Tx interface. The next three lamps
are for Ethernet 100Mbps, Link and Act. Table 2-1 describes the function of each LED indicator lamp.
Figure 2-1 The panel layout of the UPSLink 100

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Lamps Function
Power Turned on if power is supplied
Ready Turned on if system is ready to run
Serial Rx/Tx Blink whenever there is any incoming or outgoing data stream through the
serial port of the UPSLink 100
100Mbps Turned on if 100Base-TX connection is detected
LINK Turned on if connected to Ethernet network
Act Blink whenever there is any activities such as incoming or outgoing packets
through the UPSLink Ethernet port
Table 2-1 LED indicator lamps of the UPSLink 100
2.2. Connecting hardware
This section describes how to connect the UPSLink to the equipment for initial testing.
- Connect a power source to the UPSLink
- Connect the UPSLink to an Ethernet hub or switch
- Connect the UPS
2.2.1. Connecting power
Connect the power cable to the UPSLink. If the power is properly supplied, the [Power] lamp will light
up green.
Figure 2-2 Connecting the power to the UPSLink
2.2.2. Connecting to the network
Plug one end of the Ethernet cable to the UPSLink Ethernet port. The other end of the Ethernet cable
should be connected to a network port. If the cable is properly connected, the UPSLink will have a
valid connection to the Ethernet network. This will be indicated by:
The [Link] lamp will light up green.
The [Act] lamp will blink to indicate incoming/outgoing Ethernet packets

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The [100Mbps] lamp will light up green if the UPSLink is connected to 100Base-TX network
The [100Mbps] lamp will not turn on if the current network connection is 10Base-T.
Figure 2-3 Connecting a network cable to the UPSLink
2.2.3. Connecting UPS to the UPSLink
Connect both ends of the console cable to the UPSLink serial port and the serial data port of the UPS,
Please refer to the Appendix A A.4 Serial wiring diagram for details.
Figure 2-4 Connecting a UPS to the UPSLink

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2.3. Accessing the UPSLink
There are several ways to access the UPSLink. These methods are dependent on whether the user is
located at a local site or a remote site, or whether s/he requires a menu-driven interface or graphic
menu system.
- System console:
Local users can connect directly to the system console port of the UPSLink using the serial console
cable and the terminal emulator like HyperTerminal in Windows.
- Telnet:
Remote users who require a menu-driven interface can utilize Telnet (port 23) connections to the
UPSLink using a Telnet program.
- Web:
Remote users who want to use a web browser to configure the UPSLink can access the UPSLink
using conventional web browsers, such as Internet Explorer or Netscape Navigator.
The UPSLink requires user authentication for all the above methods.
2.3.1. Using system console
1) Switch Data/Console mode selector of the UPSLink to Console mode.
2) Connect one end of the console cable to the console port on the UPSLink.
3) Connect the other end of the console cable to the serial port of a user’s computer.
4) Run a terminal emulator program (i.e. HyperTerminal). Set up the serial configuration
parameters of the terminal emulation program as follows:
! 9600 Baud rate
! Data bits 8
! Parity None
! Stop bits 1
! No flow control
5) Press the [ENTER] key.
6) Enter your user name and password to log into the UPSLink. The factory default user
settings are as follows.
Login: admin Password: admin
Welcome to UPSLink Configuration
Press Enter
Login : admin
Password : *****
-------------------------------------------------------------------------------

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Welcome to UPSLink configuration page
Current time: 2003/07/09 14:20:42 F/W REV. : 2.2.1
Serial No. : UPSLINK-03040001 MAC Address: 00-01-95-04-20-30
IP mode : DHCP IP Address : 192.168.14.7
-------------------------------------------------------------------------------
Select menu
1. UPS configuration
2. Network configuration
3. Serial port configuration
4. System Status & log
5. System administration
6. Save changes
7. Exit and apply changes
8. Exit and reboot
<ESC> Back, <ENTER> Refresh
-----> Figure 2-5 The main menu screen
From the main menu screen, the user may select the menu item for the configuration of the UPSLink
parameters by typing the menu number and pressing the [ENTER] key. In the submenu screen, users
can configure the required parameters guided by online comments. All the parameters are stored into
the non-volatile memory space of the UPSLink, and it will not be stored until users select menu
‘6.Save changes’. All the configuration change will be effective after selecting the menu ‘7. Exit and
apply changes’ or ‘8. Exit and reboot’.
2.3.2. Using Telnet
The IP address of the UPSLink must be known before users can access the UPSLink via Telnet (see
chapter 4. Network configuration for details). The UPSLink is shipped in DHCP mode by default.
The Remote console access function can be disabled in the Telnet access and IP filtering option
(See section 4.5 . Access control for details).
The following instructions will guide you to access the UPSLink via Telnet.
1) Run a Telnet program or a program that supports Telnet functions (i.e. TeraTerm-Pro or
HyperTerminal). The target IP address and the port number must match the UPSLink. If
required, specify the port number as 23. Type the following command in the command line
interface of user’s computer.
telnet 192.168.14.7 (under assumption that the IP address of the
UPSLink is 192.168.14.7)
Or run a Telnet program with the following parameters:

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Figure 2-6 Telnet program set up example (TeraTerm Pro)
2) The user must log into the UPSLink. Type in a user name and password and press [ENTER].
Factory default setting of the user name and password are admin (See the section 7.1. User
administration).
3) Upon authentication by the UPSLink, a text menu screen is shown to the user just like as
system console. The menu-driven interface allows the user to select a menu item by typing
the menu number and then pressing [ENTER]. The corresponding screen allows user
configuration of the required parameters.
2.4. Accessing web Interface
The UPSLink supports both HTTP and HTTPS (HTTP over SSL) protocols. The UPSLink also
provides its own Web management pages. To access the UPSLink Web management page, enter the
UPSLink’s IP address or resolvable hostname into the web browser’s URL/Location field. This will
direct the user to the UPSLink login screen. The user must authenticate him/herself by logging into the
system with a correct user name and password. The factory default settings are:
Login: admin Password: admin
Note: Before accessing the UPSLink Web management page, the user must check the UPSLink’s IP
address (or resolvable Hostname) and Subnet mask settings.

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Figure 2-7 Login screen of the UPSLink Web Management
Figure 2-8 shows the user homepage of the UPSLink Web management interface. A menu bar is
provided on the left side of the screen. The menu bar includes the uppermost configuration menu
groups. Selecting an item on the menu bar opens a tree view of all the submenus available under
each grouping. Selecting a submenu item will allow the user to modify parameter settings for that
item. Every page will allow users to [Save to flash], [Save and apply] or [Cancel] their actions. After
changing the configuration parameter values, the users must select [Save to flash] or [Save and apply]
to save the changed parameter values to the non-volatile memory. To apply all changes immediately,
select [Save and apply] option. This option is available on the bottom of the menu bar. Only after a
user clicks on the [Apply changes] option on the bottom of the menu bar, the new parameter values
that were saved but not applied yet will be applied to the UPSLink configuration.
If a user does not want to save the new parameter values, the user must opt for [Cancel]. All
changes will be lost and the previous values restored.
Figure 2-8 The UPSLink Web Management screen

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3. UPS management
3.1. UPS information
Once the UPSLink is connect to a UPS and communicates with the UPS through serial connection,
the basic information about the UPS is gathered and is shown on this page.
Figure 3-1 UPS information
UPS identification
Shows basic information that identifies the UPS and UPSLink
UPS test information
Shows UPS test related information if there is any test ever been initiated since the last start up of the
UPSLink. All of these fields are listed on RFC1628 UPS MIB.
UPS control information
If there is any ongoing countdown for UPS shutdown, startup or reboot, this section of the Web
displays the number of seconds left to the event.

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The UPSLink has user customization features that enable adding user-specific information besides
above. Please refer to the document enclosed in the CD.
3.2. UPS status
If there occurred any UPS alarms, the alarm records are shown on this page in red-colored font with
their detected time. The information about the current status and capability of Battery, Input, Output
and Bypass system is presented. When user logs into the UPS web page, this page first shows up and
refreshes itself every 30 seconds.
Figure 3-2 UPS status
3.3. UPS graphics – overall

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A dedicated java applet communicates with UPSLink continuously through a separate TCP port (TCP
9009) so that the diagram representing the UPS status stays updated. Be noted that the alarms and
output source represented by text in the same page does not update themselves periodically.
Figure 3-3 UPS status diagram
3.4. UPS graphics – gauge
A dedicated java applet communicates with UPSLink continuously through a separate TCP port (TCP
9009) and this makes the gauges indicate the correct UPS status and capabilities in real time. Be
noted that besides the java applet, the alarms and output source represented by text in the same page
does not update themselves periodically. The gauges rearrange the upper and the lower limit of their
display and tick spacing dynamically according to their value of indication. Gauge’s auto scaling
references are adjustable in this page also.