Phihong PES12779 User manual

Phihong Midspan POE with TCPIP (SNMPv2c)
User Manual
TCPIP (SNMPv2c) Rev 1.7
PES12779
Compliant Models:
POE75U-1UP-N-R
POE90U-1BT-N-R
POE240U-1MP-N-R
POE240U-2MP-N-R
POE125U-4AT-N-R
POE240U-4UP-N-R
POE576U-4MP-N-R
POE576U-8UP-N-R
POE806U-8MP-N-R

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www.phihong.com or www.midspans.com
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Contents
Overview ............................................................................................................................................... 5
1. Safety Procedures ............................................................................................................................ 6
1.1. General Precautions ................................................................................................................. 6
2. Midspan Hardware Setup ................................................................................................................. 8
2.1. Physical Hardware Appearance ................................................................................................ 8
2.2. Connecting Ethernet Cables ................................................................................................... 11
2.3. Midspan Accessories .............................................................................................................. 14
2.4. Powering Up Midspan ............................................................................................................ 15
2.5. LED Indicators ........................................................................................................................ 16
2.6. Technical Specications ......................................................................................................... 17
3. Midspan Monitoring and Control --- HTTP Protocol ...................................................................... 18
3.1. Port Control Webpage ............................................................................................................ 18
3.2. Administrative Management Webpage ................................................................................... 21
3.3. Network Settings Webpage .................................................................................................... 21
3.4. SNMP Community String Webpage ...................................................................................... 23
3.5. System Tools Webpage .......................................................................................................... 24
4. Midspan Monitoring and Control with MIB Browser --- SNMP Protocol ....................................... 26
4.1. Structure of Management Information (SMI) of Phihong Midspan ......................................... 26
4.2. Phihong Midspan MIB ............................................................................................................ 28
4.3. Notes for Using Phihong Midspan MIB .................................................................................. 32
4.4. Using MG-SOFT MIB Browser to run Phihong Midspan ........................................................ 33
5. Field Firmware Updating ................................................................................................................ 39
5.1. Updating Microprocessor Flash Contents with POEA-x.x.bin ................................................ 39
5.2. Updating EEPROM Contents with POEB-x.x.bin ................................................................... 42
6. Troubleshooting .............................................................................................................................. 44
7. Frequently Asked Questions ......................................................................................................... 45
Disclaimer
Phihong accepts no accountability or liability arising from the use of the Midspans, as described in
this document. The handling of equipment will be users’ responsibility. Applications described in this
document are for descriptive purposes only. Phihong does not provide warranty on modied products.
Notice
This document contains informative information about the software and hardware used on the Mid-
span. The information is held to be accurate and reliable from time of print. Please be advised that
product development and revisions are still in course of action. Phihong cannot be held responsible for
involuntary error, exclusions, inaccuracies, or following changes of printed material.
Phihong reserves the right to make changes to products and to their specications as described in this
document, at any time, without prior notice. The contents of this document may not be photocopied
or reproduced in any form without written permission of Phihong.
NOTE: Midspans are for indoor use only!
© August 2009 Phihong USA Corp.
All Rights Reserved.
This document is subject to change without notice.

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List of Figures
Figure 1 – Single Port Midspan Ports ................................................................................................... 8
Figure 2 – Single Port Midspan AC Input ............................................................................................. 8
Figure 3 – Small Frame Multiport Midspan Ports ................................................................................ 9
Figure 4 – Small Frame Multiport Midspan AC Input ........................................................................... 9
Figure 5 – 1U Multiport Midspan Ports .............................................................................................. 10
Figure 6 – 1U Multiport Midspan AC Input ......................................................................................... 10
Figure 7 – Single Port Midspan SNMP Connection ........................................................................... 11
Figure 8 – Single Port Midspan Data and PoE Connections .............................................................. 11
Figure 9 – Small Frame Multiport Midspan SNMP Connection ......................................................... 12
Figure 10 – Small Frame Multiport Midspan PoE Connections ......................................................... 12
Figure 11 – 1U Multiport Midspan SNMP Connection ....................................................................... 13
Figure 12 – 1U Multiport Midspan POE Connections ........................................................................ 13
Figure 13 – Single Unit Rack Mount ................................................................................................... 14
Figure 14 – Two Units in Side by Side Rack Mounting ...................................................................... 14
Figure 15 – 19” Midspan Rack Mount ................................................................................................ 14
Figure 16 – Rack Mounting Brackets and Screws ............................................................................ 14
Figure 17 – AC Cord ........................................................................................................................... 14
Figure 18 – Management Set-up Diagram ......................................................................................... 18
Figure 19 – Port Control Webpage ..................................................................................................... 18
Figure 20 – Administrative Management Webpage ............................................................................ 21
Figure 21 – Network Settings Webpage ............................................................................................. 22
Figure 22 – Reboot Webpage ............................................................................................................. 23
Figure 23 – SNMP Community Strings Webpage .............................................................................. 23
Figure 24 – System Tools Webpage ................................................................................................... 25
Figure 25 – Phihong Midspan SMI ..................................................................................................... 26
Figure 26 – Phihong Midspan SMI Continued ................................................................................... 27
Figure 27 – Generate Phihong SNMPv2c MIB Module ...................................................................... 33
Figure 28 – Set SNMP Protocol to contact remote SNMP Agent ...................................................... 35
Figure 29 – Phihong Midspan MIB Tree ............................................................................................. 36
Figure 30 – Set IP Address of Trap Receiver ...................................................................................... 37
Figure 31 – Trap Ringer Console ........................................................................................................ 38
Figure 32 – TFTP Uploading Using Application Entry Mode .............................................................. 40
Figure 33 – Set Static IP in Internet Protocol (TCP/IP) Properties Window ....................................... 41
Figure 34 – Upload in Internet Explorer .............................................................................................. 42
Figure 35 – Software Update Successful Window ............................................................................. 42
Figure 36 – Upload Using System Tools on Web Interface ................................................................ 43
Overview
Phihong’s midspans are Power over Ethernet (PoE) injectors with output options ranging from
15.4W to 95W per port. Available with 1, 2, 4, 8, 16 or 24 ports, Phihong’s midspans put out full
power every port with no need to manage power across ports.
By using the SNMPv2C (Simple Networking Management Protocol version 2C) protocol, users can
monitor and control the port status over their internet browser. Linking an Ethernet cable between
their midspan and management computer, locally or otherwise through a network switch, users
may manage certain functions including remote reset of powered devices. Users may connect to
their midspan using the DHCP client on the midspan which will create a dynamic hostname and IP
address unique to the network. Otherwise a Static IP address may be created by the user.
Internet browsers that users may choose from to access their Phihong midspans including:
Internet Explorers 7 and 8 found on Windows XP, Windows Vista and Windows 7. Mozilla Firefox,
Google Chrome, Opera and Safari may also be used. To update the rmware on your midspan,
only Microsoft XP or Vista may be used at this time. Please check www.phihong.com or www.
midspans.com for support updates or contact us at [email protected] for additional questions
regarding compatibility. For SNMO interface, users may refer to the SNMP console manual for PC
requirements.
A default username and password come preset on your Phihong midspan. Entering “admin” in
both elds will allow users to gain access to customize their security settings. The default read-
only community string is “Phihong_read_only” and users may enter “Phihong” for the read-write
community eld. Select tools that users may access through Phihong’s management interface is
port control (i.e. turn on/o), change access strings (hostname, username, password etc.), and set
IP Address to dynamic DHCP to allow it to be set automatically or Static as customized by the user.
Additionally, users may congure and send SNMPv2C TRAPs which are triggered on changes to
port status.
Phihong may release new rmware and updates at any time, so it is advised to check our websites
regularly for any updates that may aect your midspan. For the models listed on the cover page, two
rmware les are used. The rst is POEA-x.x.x.bin which is uploaded to an internal microprocessor
under Windows TFTP command. The second is POEB-x.x.x.bin which is uploaded directly into an
internal EEPROM by entering http://hostmane/upload into your internet browser or by using web
<system tools>.
More detailed instruction may be found in this manual.

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1. Safety Procedures
1.1. General Precautions
General – Please read the following precautions carefully before installing and connecting the system
to a power source.
Note – Only qualied and trained service personnel (in accordance with IEC 60950 and AS/NZS
3260) should install, replace, or service the equipment. Install the system in accordance with Coun-
try, National or to the U.S. National Electric Code if you are in the United States.
Precautions:
1. The building facilities in which the product will be used requires a fuse or circuit breaker no larger
than 15A for 120Vac (U.S.A.) or 10A, 230Vac (international). The building facilities must protect the
Midspan from over current and short-circuits.
2. Before connecting the Midspan to a power source (including power cord requirements), read
the Midspan Hardware Setup procedure in Section 2. This procedure as with all procedures and
instructions can be found in the Midspan User Manual. To download a copy of the Manual, visit
www.phihong.com or www.midspans.com.
3. To prevent the Midspan from overheating, do not operate the product in an area that exceeds the
maximum recommended ambient temperature of 40oC. Allow at least 3 to 4 inches of clearance
around all ventilation openings.
4. In order to support the midspan’s weight, do not stack the chassis on any other equipment. Shelf
mounted equipment requires a stable and durable surface. When installed, do not push or pull on
the Midspan when the equipment is installed.
5. The Midspan consists of two rows of “Data” and “Data & Power” ports. The ports use RJ-45
data sockets. Do not connect telephone cables into these ports. Only RJ-45 data cables may be
connect to these sockets.
6. Do not work on the Midspan system or connect or disconnect the cables, during periods of lightning
activity.
7. The AC plug/socket combination must be accessible at all times, as it serves as the main disconnect
device to the product.
8. Before servicing the product, always disconnect the products from its AC and DC source.
9. Disposal of this product should abide by all appropriate National laws and regulations.
1.1 Sicherheitsmaßnahmen – Allgemeine Vorsichtsmaßnahmen
Allgemein – Lesen Sie die folgenden Vorsichtsmaßnahmen sorgätig durch, bevor Sie das System
installieren und an eine Energiequelle anschließen.
Hinweis – Das Gerät derf nur durch qualiziertes und geschultes tehisches Personal (gemäß IEC
60950 [Vorschrift 60950 der Internationalen Elektrischen Kimmission] und AS/NZS 3260 [Vorschrift für
Australien und Neuseeland]) installiert, ersetzt oder repariert werden. Installieren Sie das System auch
in Übereinstimmung mit den geltenden nationalen oder europäischen Vorschriften bzw. Der NEC-
Vorschrift, falls Sie sich in den Vereinigten Staaten benden.
Vorsichtsmaßnahmen:
1. Die Gebäudeinstallationen, in denen das Produkt benutzt wird, müssen über eine Sicherung oder
einen Schutzschalter mit maximal 15A für 120 Vac (USA) oder 10A für 230Vac (ineternational)
verfügen. Dis Gebäudeinstallationen müssen das Midspan-Device vor zu starkem Strom oder
Kurzchlüssen schützen.
2. Lesen Sie vor dem Anschließen des Midspan-Device an eine Energiequelle (einschließlich der
erforderlichen Anschlussleitungen) die Setup-Anleitung für Ihre Midspan-Hardware in Kapitel 2
genau druch. Dieses Verfahren wird zusammen mit allen weiteren Vorgängen und Anwisungen
im Benutzerhandbuch für das Midspan-Device beschrieben. Sie Können das Benutzerhandbuch
unter www.midspans.com oder www.phihong.com herunterladen.
3. Um das Midspan-Device vor Überhitzung zu schübenutzen Sie das Produkt nicht in Räumen, die
die maximale empfohlene Umgebungstemperatur von 40oC überschreiten. Lassen Sie um alle
Lüftungsönungen herum mindestens 7,5 bis 10 cm (3-4 inches) frei.
4. Stützen Sie das Gewicht des PoE Midspan-Device nicht ab, indem Sie das Gehäuse auf ein
anderes Gerät stellen. Falls Sie das Gerät auf ein Gestell montieren, muss dieses eine stabile und
haltbare Oberäche haben. Nach der Installation des Systems bewegen Sie das Midspan-Device
nicht mehr.
5. Ds Midspan-Device enthält zwei Reihen mit “Datenports” und “Daten-und-Stromports.” Die
Ports verwenden RJ45-Datenanschlüsse. Schließen Sie keine Kabel an und trennen Sie keine
Kabelverbindungen während Gewittern mit Blitzen.
6. Führen Sie an dem Midspan-System keine Arbeiten durch schließen Sie keine Kabel an und trennen
Sie keine Kabelverbindungen während Gewittern mit Blitzen.
7. Der Steckanschluss Wechselstrom muss jederzeit zugänglich sein, da er als Haupttrenngerät für
das Produkt dient.
8. Trennen Sie das Produkt immer erst von der Stromquelle, bevor Sie Wartungs- oder reparaturarbeiten
daran durchführen.
9. Entsorgen Sie dieses Produkt gemäß aller geltenden Gesetze und Vorschriften Ihres Landes und
der EU (falls Sie sich in einem Land der EU benden).

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2. Midspan Hardware Setup
2.1 Physical Hardware Appearance:
2.1.1 Single Port Models
Front View:
NIC
Connector
Port
PoE Out
Rear View:
IEC320 C14
AC Input
Data
In
Figure 1: Single Port Midspans Ports
Figure 1: Single Port Midspan AC Input
2.1.2 Small Frame Multiport Models
Front View:
Figure 3: Small Frame Multiport Midspan Ports
Row 1: Data and Power OUT
to the Powered Device
Row 2: Data IN from the Network
Switch
NIC Management Port
Rear View:
Figure 4: Small Frame Multiport Midspan AC Input
IEC320 C14 AC Input

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2.1.3 1U Multiport Midspans
Front View:
Figure 5: 1U Multiport Midspan Ports
Row 1: Data and Power OUT
to the Powered Device
Row 2: Data IN from the Network
Switch
NIC Management Port
Rear View:
Figure 6: 1U Multiport Midspan AC Input
IEC320 C14 AC Input
2.2 Connecting Ethernet Cables*
2.2.1 Single Port Midspans
NIC Connection:
NIC Port Connected
to management
computer
Figure 7: Single Port Midspan SNMP Connection
Ports Connection:
Figure 8: Single Port Midspan PoE and Data Connection
PoE OUT Data IN
from Network Switch
*Ethernet cables are not included
Diagnostic LEDS

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2.2.2 Small Frame Multiport Midspans
NIC Connection:
NIC Port Connected
to managment
computer
Figure 9: Small Frame Multiport Midpsan SNMP Connection
Ports Connection:
Figure 10: Small Frame Multiport Midpsan Data and PoE Connection
PoE OUT
Connected to a
Valid Load
2.2.3 1U Multiport Midspans
NIC Connection:
NIC Port Connected
to managment
computer
Ports Connection:
Figure 11: 1U Multiport Midpsan SNMP Connection
PoE OUT
Connected to a
Valid Load
Figure 12: 1U Multiport Midpsan Data and PoE Connection

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2.3 Midspan Accessories
2.3.1 Rack Mounting Options/AC Power Cord
All multiport midspans may be rack mounted on a 19”1U rack in either single or double unit mounts
(Small footprint multiport midspans). To position the Midspan on the rack; arrange the mounting bracket
to the corresponding screw holes on the Midspan. Keep the screw area visible to insert screws, and
then tighten the screws. Screws and brackets will be included in the package. For replacement parts
contact Phihong for part number POE125U-ACCY01-R.
Figure 13: Single Unit Rack Mount
Figure 14: Two Units in Side by Side Rack Mounting
Figure 15: Rack Mounted 19” Midspan
Figure 16: Mounting Bracket Figure 17: AC Power Cord*
The AC power cable is connected to the
AC power connector located in the rear
side of the Midspan and the power outlet.
*AC Power Cord may be ordered seperately.
2.4 Powering Your Midspan
Power Cord Requirements
Power cords must meet the requirements for the country it is intended to be used.
U.S.A and
Canada
• The cord must have a minimum of 10A rated current competence
• The cord must be CSA or UL approved
• The minimum requirement for the exible cord is:
o
o
o
18 AWG (10A)
Three-Conductor (Line, Neutral, Ground)
Type SV (stranded Vacuum Rubber Jacketed) or SJ (stranded Junior
Rubber Jacketed) or SVT (Stranded Vacuum Rubber Jacketed
Thermoplastic) or SJT (Stranded Junior Thermoplastic)
• The plus must be earth-grounded with a NEMA 5-15 (15A, 125V) or NEMA
6-15P (15A, 250V) conguration
Europe Switzerland
• The supply plug must comply with SEV/ASE 1011
Denmark
• The supply plug must comply with section 108-2-D1, standard DK2-1a or
DK2-5a
United Kingdom
• The Midspan is covered by General Approval (section 16.16.060,
NS/G/12345/J100003, for indirect connection to a public
telecommunication system
France and Peru
• IT equipments cannot power this device. In the case of an IT powered
device, the unite needs to be powered by 230V through an isolation
transformer with a ratio of 1:1 and the secondary connection (Neutral) is
properly grounded
• The Midspan must have access to a nearby power outlet. By disconnecting the power cord
from the outlet, you will eliminate power from the device.
• The exible cord that connects to the Midspan must have a conguration to connect with an
EN60320/IEC320 inlet connector.
• According to the EN60950/IEC 950 specications this device functions under SELV (Safety
Extra Low Voltage) conditions. The conditions are true if the equipment and the connected
device functions under SELV conditions.

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Power up Midspan:
In order to power up your midspan insert an AC power cord into the appropriate connector on the rear
of your midspan. Once the cord is connected to a universal or redundant power source the midspan
will turn on.
With AC power applied, the unit starts-up and all LEDs should illuminate. The device runs through
a quick power-on test, which takes a couple of seconds. During this period, all ports are initially
disabled and the port indicators light up. After completing the cold start, ports will operate under
normal conditions and the unit is ready to connect to powered devices.
2.5 LED Indicators:
POE75U-1UP-N-R Port LED:
Green LED 1: DC Power “OK”
Red LED: Fault detected
Solid Green LED 2: 12.5kohm detected “CONNECT” at 75W power.
Flashing Green LED 2: 25kohm detected “CONNECT” at 75W power
POE90U-1BT-N-R Port LED:
No LED - Power failure
Green LED short Blinking - POE power ready but no connection
Green LED solid - POE output power good
Green/Red LED alternate short blinking - POE detection failure
Green LED short/Red long blinking - POE output over power or short
Multi-Port Midspans
For the series of multiport midspans, for each port the left LED (as viewed from front) will be blinking
green if 25K-resistance load is detected. The LED will illuminate in solid green if the powered device
requires 12.5K-resistance. The right LED will blink yellow if a fault has occurred with the connection.
No LEDs will illuminate if the port is not connected.
NIC LED:
If both LEDs are o, it indicates that Midspan is disconnected from the network.
If the green LED is illuminated and the orange LED blinks, it indicates the Midspan is properly connected
to the network.
2.6 TechnicalSpecications
Model Name:
POE U- -N-R
RoHS
NIC Interface
Power over Ethernet
2-3 digits specifying the
total power rating 2 letters specifying the
power level per port
1-2 digits specifying the
total number of output
ports
GeneralEletricalSpecications:
• Input
AC Input Voltage Rating 100VAC to 240VAC
AC Input Voltage range 90VAC to 264VAC
AC Input Current Varies per model
AC Input frequency 47Hz to 63Hz
Max. In-rush current 30A for 115VAC at Max. load
60A for 230VAC at Max. load
POE125U-
4AT-N
POE75U-
1UP-N
POE90U-
1BT-N
POE240U-
2MP-N
POE240U-
4UP-N
POE576U-
8UP-N
POE576U-
4MP-N
POE806U-
8MP-N
Nominal DC Output Voltage
56V 56V 56V 56V 56V 56V 56V 56V
Output Power per Port
33.6W 75W 90W 95W 60W 75W 95W 95W
Maximum Current per Port
0.6A 1.339A 1.6A 1.696A 1.071A 1.339A 1.696A 1.696A
POE125U-
4AT-N
POE75U-
1UP-N
POE90U-
1BT-N
POE240U-
2MP-N
POE240U-
4UP-N
POE576U-
8UP-N
POE576U-
4MP-N
POE806U-
8MP-N
25K 12.5K and 25K (both)
• Detection Resistance
• Output
For detailed specications, refer to the datasheets posted on www.phihong.com or www.midspans.com

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3 Midspan Monitoring and Control - HTTP Protocol
Use Cat5e cables or better to connect both PC and Midspans to the network as follows:
Figure 18: Management Set-up Diagram
3.1 Port Control Webpage
Enter the hostname in the address bar of your internet browser (The default value of hostname is
phihong-xxxxxx, where xxxxxx is the last 6 letters of the Midspan’s MAC address found on the
midspan’s label), then enter the username and password in the login screen. The default username
and password are both “admin”. Users should note that when creating their new username and
password both are case sensitive. The Port Control Webpage will be displayed as follows:
Figure 19: Port Control Webpage
Model Name:
This can be found in the upper left corner of the Port Control page.
Heartbeat:
The Heartbeat is a diagnostic tool to assess the quality of the connection between the midspan and
the network. A blinking blue “Communication Okay” will indicate that the midspan is connected to
the network and that data is being relayed correctly. Should a fault occur with the connection; the
blinking will stop and a solid red “Communication Lost” will appear on the screen.
Hostname, IP address, Firmware version and MAC address display:
These can be found on the rst row of the table located in the middle of the Port Control Page.
Menu:
The menu on the left side of webpage consists of Port Control and Conguration Settings including:
Administrative Management, Network, SNMP, System Tools and Logout. These will be explained in
detail later in this manual.
Help Info:
Located in the lower right hand corner of the screen, users may click the Help Info icon to obtain
contact information for technical support. Users may also nd support documents and contact
information on www.midspans.com and www.phihong.com.
Print Tools:
To the left of the Help Info icon is the Print Tools icon. Clicking on this icon will print the current
webpage. The default printer must be on the same network as the midspan in order to use this
function.
Phihong webpage:
Clicking on any of the Phihong logos will link directly to www.phihong.com, where the detailed
information for all Phihong products, including support information and datasheets, can be found.
Port Monitoring and Control:
At the center of the Port Control webpage, there is a table for the user to monitor and control port
status.
• Click on the control button “On” in each row, the corresponding port Output-LED will be turned
on if connected to a valid load, or it will display “No Connection”.
• Click on the control button “O” in each row, the corresponding port Output-LED will be turned
o.
• Click on the control button “Cycle” in each row to reset that port, if the corresponding port Output-
LED is already on (or No Connection), it will be turned o for several seconds and then turned on
again (or No Connection). If the Output-LED is o, it will be turned on (or No Connection).

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• Click the button Enable All Ports below the table, the port Output-LEDs will be turned on if
connected to a valid device or it will display a status “No Connection” if a port is not connected
to a valid end device.
• Click the button Disable All Ports below the table, all port Output-LEDs will be turned o.
• Click the button Cycle All Ports in the last row, all port Output-LEDs will follow one of the following
actions: If the ports are already “ON” then the ports will be “On” (or No Connection) » O »
Turning On… » On (or No Connection). If all ports start turned o then the sequence will be O
» Turning On… » On (No Connection), depends on their original states.
3.1 Administrative Management
Clicking Admin Management under the Conguration menu will bring you to the following page. From
here the user can choose their own username and password to login to their Phihong Midspan web
controller. Enter in the new username and password in the corresponding box and click on the Save
button. Remember to write down your new login information in a safe place for reference. If you forget
your login information, please review Section 7 – Frequently Asked Questions.
• Both the username and the password must have a character length of 5 – 30 inclusive.
• Valid characters include: 0-9, A–Z, and !@#$%^&*()-_+~?<>,.
Figure 20: Administrative Management Webpage
3.3 Network Settings
Clicking on the Network button under the Conguration menu will direct to the Network Settings page.
This webpage allows the user to change the midspan’s hostname and congure network settings.
Change hostname:
A user may select any character from the keyboard for a hostname up to 15 characters maximum. Any
extra characters entered will be truncated. Click on the Save button to save your new hostname or
new network settings if they are acceptable, and you will be directed to the Reboot webpage.

Phihong USA Corporation • 47800 Fremont Blvd. Fremont, CA 94538 • Tel: [phone] Fax: [phone]
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Congure network settings:
WARNING: Only the network administrator is allowed to perform this conguration.
Network settings on your midspan can be re-congured. Users can choose DHCP, where the midspan
will be automatically assigned an IP address by the network. The alternative option is to choose Static
which allowing the user to customize the IP address, IP Subnet Mask, Default Gateway, Primary DNS
and Secondary DNS. Users need to be aware that any incorrect settings will cause your midspan to
lose a valid network connection or may upset your network’s normal operation.
Figure 21: Network Settings Webpage
After clicking the Save button, a Reboot page (shown below) will be displayed to inform the user that
the Midspan needs to reboot in order to update for the new settings. The Reboot webpage will also
display instructions regarding reconnection.
Figure 22: Reboot Webpage
Figure 23: SNMP Community String
3.4 SNMP Community String
Click SNMP under the Conguration menu to be directed to the SNMP Community String settings
page. Phihong’s midspans allow users to change the SNMP Read-Only Community String and Read-
Write Community String. SNMP community string is a security feature. Only those nodes sharing the
same community strings in a network may participate in a communication exchange.
The maximum length of the community string is 30 characters. When the new community string is
entered, click the Save button to allow the midspan to reboot for the new settings.

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3.5 System Tools
This System Tools webpage allows user to execute the following 3 tasks:
1. Upload Firmware
Upload the binary le POEB-x.x.x.bin (web/SNMP image) into the midspan‘s internal EEPROM
directly. Note that if a new version of rmware is released, in order to update, you rst must use the
Windows TFTP command to upload POEA-x.x.x.bin into the midspan‘s internal microprocessor,
then upload POEB-x.x.x.bin. Please review Chapter 5: Firmware Updating at Field for more details
regarding TFTP uploading.
To upload web/SNMP image, using the Browser button to locate le POEB-x.x.x.bin, then click on
the Upload button. If the upload is successful, a new page will display the message <Software
Update Successful>. Click on the link referencing the site main page to be redirected to the newly
updated controller.
2. Reboot Midspan.
In addition to the Reboot button, there is an input-box for time associated with the Reboot button.
The Seconds input-box species the time for the boot loader to wait for a TFTP rmware upload
after a power reset. Read Chapter 5: Firmware Updating at Field for more details regarding a TFTP
upload.
Choose 0 seconds for a normal reboot. If you have uploaded the POEA-x.x.x.bin via TFTP boot
load, then a value of at least 6 must be input prior to clicking the Reboot button, then the page will
be redirected to the Reboot webpage. Note that the POE ports will be turned o while the boot
loader is waiting for an upload, however, if a reboot of 0 seconds (fast reset) is selected, the power
across the ports in use will not experience any interruption.
3. Restore Defaults.
The Restore Defaults button restores midspan to the factory defaults, and redirects the user to the
Rebooting page.
Review the following default settings for your Phihong midspan.
hostname: phihong-xxxxxx where ‘xxxxxx’ is the last 6 characters of the midspan’s MAC address.
user name: admin (case sensitive)
password: admin (case sensitive)
DHCP: enabled
read-write community: Phihong
read-only community: Phihong-read-only
Figure 24: System Tools Webpage

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4. Midspan Monitoring and Control through MIB Browser --- SNMP Protocol
Simple Network Management Protocol (SNMP) is used most commonly in network management
systems to monitor network-attached devices for remote diagnostics. Users can monitor and control
Phihong midspans using the SNMPv2c protocol. There are many SNMP consoles available, with very
little dierence between them; Phihong leaves the nal choice to user preference. Users may obtain
all the SNMP MIB information shown in this manual in a txt le found in the support sections of our
websites: www.midspans.com and www.phihong.com.
4.1 Structure of Management Information (SMI) for Phihong Midspans
Figure 25: Phihong Midspan SMI
Figure 26: Phihong Midspan SMI Continued

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4.2 Phihong Midspan MIB
The following table shows the OID, Name, Type, Value, and Description of Phihong Midspan MIB.
Phihong USA Corp. registered PEN (Private Enterprise Number) is 1.3.6.1.4.1.24852
SNMP Version: SNMPv2c (Simple Network Management Protocol Version 2 Community-based) TCP,
UDP Port: 161.
OID Name Type Value Descrip-
tion
phihong.poe.product (1.3.6.1.4.1.24852.1)
1.3.6.1.4.1.24852.1.1.1 name Read-
Only
DisplayString Display the
name of
this MID
(Phihong
SNMP MIB)
1.3.6.1.4.1.24852.1.1.2 version Read-
Only
DisplayString Display
the current
Phihong
Midspan
rmware
version
1.3.6.1.4.1.24852.1.1.3 date Read-
Only
DisplayString Display
the date
when the
current MIB
updated
phihong.poe.snmp (1.3.6.1.4.1.24852.1.2)
1.3.6.1.4.1.24852.1.2.2 snmpAgentReadOnlyCommunity Read-
Write
DisplayString SNMP
community
string tor
Read
1.3.6.1.4.1.24852.1.2.3 snmpAgentReadWriteCommunity Read-
Write
DisplayString SNMP
community
string for
Write
1.3.6.1.4.1.24853.1.2.4 snmpTrapHost Read-
Write
DisplayString The IP of
Host to
receive Trap
1.3.6.1.4.1.24852.1.2.5 snmpTrapcommunity Read-
Write
DisplayString SNMP
Community
string for
trap
phihong.poe.network (1.3.6.1.4.1.24852.1.3)
1.3.6.1.4.1.24852.1.3.1 dhcp Read-
Write
enable(1);
disable(0)
Enable or
disable
DHCP
1.3.6.1.4.1.24852.1.3.2 inAddr Read-
Write
IpAddress Read or set
static IP
1.3.6.1.4.1.24852.1.3.3 ipMask Read-
Write
IpAddress Read or
change IP
Mask
1.3.6.1.4.1.24852.1.3.4 defaultGateway Read-
Write
IpAddress Read or
change
Default
Gateway
1.3.6.1.4.1.24852.1.3.5 primaryDNS Read-
Write
IpAddress Read or
change Pri-
mary DNS
1.3.6.1.4.1.24852.1.3.6 secondaryDNS Read-
Write
IpAddress Read or
change
Second
DNS
1.3.6.1.4.1.24852.1.3.7 saveNewSettings Write-
Only
Integer (0 -- 25) (1). Reboot
device and
vaildate
the new
settings.
(2). Specify
the waiting
seconds
(0 - 255) for
TFTP.
phihong.poe.control (1.3.6.1.4.1.24852.1.4)
1.3.6.1.4.1.24852.1.4.1 rmwareVer Read-
Only
DisplayString Display
current
rmware
version
1.3.6.1.4.1.24852.1.4.2 macAddr Read-
Only
DisplayString Display
unit’s MAC
address
1.3.6.1.4.1.24852.1.4.3 hostname Read-
Write
DisplayString Read or
change the
hostname

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1.3.6.1.4.1.24852.1.4.4 username Read-
Write
DisplayString Read or
change the
username
for web
1.3.6.1.4.1.24852.1.4.5 password Read-
Write
DisplayString Read or
change
password
for web
1.3.6.1.4.1.24852.1.4.6 restore Write-
only
restoreDefaults(1) Restore
factory
default
settings
1.3.6.1.4.1.24852.1.4.7 portsInSystem Read-
Only
Integer (1 --8) Display
the port
number in
device
1.3.6.1.4.1.24852.1.4.8 Port1Ctr Read-
Write
on(1);
o(0);
na(63);
Port1
control: ON;
OFF; N/A
1.3.6.1.4.1.24852.1.4.9 Port1Out Read-
Only
Port1
output: ON;
OFF; N/A
1.3.6.1.4.1.24852.1.4.10 Port2Ctr Read-
Write
Port2
control: ON;
OFF; N/A
1.3.6.1.4.1.24852.1.4.11 Port2Out Read-
Only
Port2
output: ON;
OFF; N/A
1.3.6.1.4.1.24852.1.4.12 Port3Ctr Read-
Write
Port3
control: ON;
OFF; N/A
1.3.6.1.4.1.24852.1.4.13 Port3Out Read-
Only
Port3
output: ON;
OFF; N/A
1.3.6.1.4.1.24852.1.4.14 Port4Ctr Read-
Write
Port4
control: ON;
OFF; N/A
1.3.6.1.4.1.24852.1.4.15 Port4Out Read-
Only
Port4
output: ON;
OFF; N/A
1.3.6.1.4.1.24852.1.4.16 Port5Ctr Read-
Write
Port5
control: ON;
OFF; N/A
1.3.6.1.4.1.24852.1.4.17 Port5Out Read-
Only
Port5
output: ON;
OFF; N/A
1.3.6.1.4.1.24852.1.4.18 Port6Ctr Read-
Write
Port6
control: ON;
OFF; N/A
1.3.6.1.4.1.24852.1.4.19 Port6Out Read-
Only
Port6
output: ON;
OFF; N/A
1.3.6.1.4.1.24852.1.4.20 Port7Ctr Read-
Write
Port7
control: ON;
OFF; N/A
1.3.6.1.4.1.24852.1.4.21 Port7Out Read-
Only
Port7
output: ON;
OFF; N/A
1.3.6.1.4.1.24852.1.4.22 Port8Ctr Read-
Write
Port8
control: ON;
OFF; N/A
1.3.6.1.4.1.24852.1.4.23 Port8Out Read-
Only
Port8
output: ON;
OFF; N/A
1.3.6.1.4.1.24852.1.4.24 enableAll Write-
Only
enable(1) Enable all
ports in
device
1.3.6.1.4.1.24852.1.4.25 inhibitAll Write-
Only
inhibit(0) Inhibit all
prorts in
device
1.3.6.1.4.1.24852.1.4.26 port1Status Read-
Only
on(0);
notConnected(1);
fault(2);
o(3);
na(63);
Display
Port1 status
1.3.6.1.4.1.24852.1.4.27 port2Status Read-
Only
Display
Port2 status
1.3.6.1.4.1.24852.1.4.28 port3Status Read-
Only
Display
Port3 status
1.3.6.1.4.1.24852.1.4.29 port4Status Read-
Only
Display
Port4 status
1.3.6.1.4.1.24852.1.4.30 port5Status Read-
Only
Display
Port5 status
1.3.6.1.4.1.24852.1.4.31 port6Status Read-
Only
Display
Port6 status
1.3.6.1.4.1.24852.1.4.32 port7Status Read-
Only
Display
Port7 status

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1.3.6.1.4.1.24852.1.4.33 port8status Read-
Only
Display
port8 status
1.3.6.1.4.1.24852.1.4.34 modelName Read-
Only
DisplayString Display
device’s
Model
Name
4.3 Notes for using Phihong Midspan MIB
1. Although Phihong midspans using SNMPv2c protocol can also run under a SNMPv1 console with
the same MIB le, they will not operate with Phihong’s SNMPv3 MIB, as the MIB les are not the
same.
2. There is a tree node <network> in Phihong Midspan devices, which allows the network
administrator to change the settings of dhcpStatus, ipAddr, ipmask, defaultGetway, primaryDNS
and secondaryDNS. If these settings are changed; the OID <saveNewSettings> must be set at a
value of “0” to reboot the device and validate the new settings. For other events requiring a system
reboot, users can also set a value of ‘0’ to <saveNetSettings>, except for a TFTP upload (refer to
Chapter 5: Firmware updating at eld). A TFTP upload requires a value greater than or equal to ‘6’
to validate the upload.
3. Although <hostname> should technically be listed under network, we place it into the <control>
section as it does not need a second step (rebooting) to be validated. <macAddr> which is read-
only and follows the same rebooting rule, is also in this section.
4.4 Using MG-SOFT MIB Browser to run Phihong Midspan
As an example, we have detailed instructions on how to operate a Phihong Midspan using the MG-
SOFT MIB browser. These instructions do not apply to all MIB browsers, please see instructions for
your specic browser if you don’t want to use this software.
4.4.1 Generate Phihong-POE-MIB module
It is assumed that MG-Soft MIB browser is already installed on your PC. For detailed operation
information, users can get help by choosing from the menu Help »User Manual when the MG-SOFT
MIB Browser is opened.
1. Open the MIB Browser and click the Continue button on the Welcome popup window. A Tip
of the Day window may pop-up for certain options in this browser. Users may choose to click
the little box in the lower left hand corner to stop these pop-ups.
2. Click the MIB tab; remove any MIB modules in the “Loaded MIB modules” by highlighting and
double clicking them.
3. Under the Action menu - open Run MIB Compiler.
4. In the MG-SOFT MIB Compiler window, click File then Compile…… then in the Open window,
browse for and open PHIHONG-POE-MIB.txt (users can get SNMP MIB rev 10/30/09 from the
support section on either www.phihong.com or www.midspans.com).
5. If compiling is successful, a Compiled MIB Modules window will be displayed. Click Save All
and click OK on the Browse for Folder window.
6. Close the MG-SOFT MIB Compiler window.
7. In the MG-SOFT MIB Browser window, click the circular arrow button (the middle one of 5
buttons right below the Loaded MIB modules window). This will update the MIB Browser
windows’ contents (including the newly compiled MIB module Phihong-POE-MIB).
8. In the lower window, click the tab MIB Modules. Locate the module < Phihong-POE-MIB >.
Highlighting and double clicking it will load it into the upper Loaded MIB modules window.
9. Also locate <RFC1213-MIB> and <SNMPv2-MIB>, load them into the upper Loaded MIB
modules window.
10. Now the setup for Phihong’s Midspan SNMP interface is complete.

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Figure 27: Phihong Midspan SMI Continued
4.4.2 Contact Remote SNMP Agent
1. In the MG-SOFT MIB Browser window, select the Query tab. Enter the agent’s hostname or IP
address into Remote SNMP agent box.
2. Click the hammer-symbol icon next to the Remote SNMP agent box; ensure all settings are
as follows: SNMPv2c selected; phihong_read_only is entered in the Read community box,
phihong is entered in the Set community box or your own custom community strings; Port
Number: 161.
Figure 28: Set SNMP Protocol to contact remote SNMP agent
3. Click on the SNMP menu then Contact. If contact is successful, in the lower Query Results
window, it will display a message similar to this:
Welcome to MG-SOFT MIB Browser Professional SNMPv3 Edition
Remote address: phihong-123456 port: 161 transport: IP/UDP
Local address: 192.168.31.124 port: 1301 transport: IP/UDP
Protocol version: SNMPv2c
1: sysUpTime.0 (TimeTicks) 0 days 02h:28m:06s.59th (888659)

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4.4.3 Test for Phihong Midspan SNMP Agent
1. Expand the MIB menu as shown below and locate the <Phihong> node, then continue to expand
to the 4 sub-nodes: product, snmp, network and control as shown in Fig. 28.
Figure 29: Phihong Midspan MIB Tree
2. Highlight the <phihong> node and click the SNMP menu then Walk. It will display all readable
Control values.
3. To edit a value for writeable Controls: hostname, username, password, restore, portxCtr, enableAll,
and inhibitAll; highlight the individual control, then use Set under the SNMP menu to give each
control a value. Please refer to Phihong’s Midspan MIB table for the list of assigned values. After
entering the control value, click on the “Set Value” icon in the upper left-hand corner (Set –xxxxxx.0
window) to validate the WRITE.
4. To read individual Control values, highlight the individual control, then click Get under the SNMP
menu to read values from the highlighted control.
5. Change network setting:
WARNING:Onlynetworkadministratorisallowedtoalterthisconguration.
Network settings on the Phihong midspan can also be re-congured using your MIB Browser.
Users can enable DHCP to allow the network to assign an IP for the midspan automatically, or
disable DHCP and congure ipAddr, ipMask, defaultGetway, promaryDNS and secondaryDNS.
Remember entering <saveNewSettings> is required to x the new settings. Incorrect settings may
cause your midspan to lose its network connection or crash your network’s normal operation.
6. Trap operation (POE port status change notications)
SETUP:
a. Expand the MIB Tree to: iso/org/dod/internet/private/enterprises/phihong/poe/snmp.
b. Highlight <snmpTrapHost>, click Set under the SNMP menu. Entering your PC’s IP
address in xxx.xxx.xx.x format. (You can get your PC’s IP address by entering <ipcong>
in the Command Prompt window). Click the icon in the upper left hand corner in the Set –
snmpTraphost.0 window to save the settings.
Figure 30: Set IP Address of Trap Reciever

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Operation:
Notications occur whenever a port status is changed.
Connecting or disconnecting a powered device while the unit is “ON”, or turning portxCtr ON or OFF
will cause a SNMP Trap Ringer Console window to pop up displaying the change. Click an individual
trap event on the left side of the window, the detailed trap info will display on the right. Checking the
Pause checkbox will stop trap reporting and un-checking it resume trap reporting. To clear the Trap
Ringer Console, click the second icon from the left.
Notes:
If the TRAP receiver IP address is properly set but no notications are received, a probable cause is
that the Windows Firewall is blocking the TRAP UDP Port 162. To open this TRAP port, execute:
Start » Control Panel » Windows Firewall » then select <Exceptions>. If the Firewall is ON, click <Add
Port…> button, check radio button <UDP>, enter a Name (for example: SNMP TRAP) and set the port
number as 162.
Also check any other rewall on your network that might be blocking the network trac on UDP Port
162.
Figure 31: Trap Ringer Console (Notication)
5. Field Firmware Updating
Phihong is continuously updating our rmware to improve our systems. To ensure that you have the
most up-to-date rmware, please check with the support section of our websites: www.phihong.com
or www.midspans.com. Updates can be made from the user’s PC by installing two essential pieces
of software: POEA-x.x.bin and POEB-x.x.bin where x.x is the version number of the rmware. POEA-
x.x.bin is the main rmware to be loaded into internal microprocessor, while POEB-x.x.bin needs to be
loaded into internal EEPROM.
Update POEA-x.x.bin before updating POEB-x.x.bin.
The MIB is a pure SNMP interface and used to generate the Phihong-POE-MIB.smidb module. To
update the Phihong-POE-MIB.smidb module, refer to your SNMP console User Manual (See chapter
<4.4.1 Generate Phihong-POE-MIB module> to review this method using the MG-SOFT MIB Browser).
Some updating may only need 1 or 2 steps, based on any new rmware requirements as they become
available.
5.1. Updating Microprocessor Flash Contents with POEA-x.x.bin
The boot loader inside the Midspan is used to upload POEA-x.x.bin into the internal microprocessor
under Windows’ TFTP command. Windows XP always includes the TFTP utility. However, on Windows
Vista the TFTP utility must be added by setting Control Panel » Programs and Features » Turn windows
features on or o » TFTP client.
There are two “modes” in which the boot loader can listen for a TFTP rmware upload.
TFTP uploading (Application Entry Mode)
For normal network/internet/SNMP operations, users may use this Application Entry Mode to manage
TFTP uploading.
1. Power up the ready-to-upgrade POE unit and connect it to the Ethernet network. Make sure that
its TCP/IP feature is functioning. The boot loader will use its TFTP, ARP and ICMP services.
2. Open the Command Prompt Console by clicking Start » Programs » Accessories » Command
Prompt.
3. In the Command Prompt Console, type:
Tftp:phihong-xxxxxx put “C: \......\POEA-x.x.bin” as shown in the Fig. 5-1, make appropriate
Hostname/IP Address and le path changes, do not execute the TFTP command yet.
4. Because the boot loader always listens for 6 seconds after power-on for a TFTP rmware upload,
an appropriate waiting time must be set for after a reboot. Open web » System Tools and in the
same screen, enter a value greater than or equal to 6, in the box on the right of the Reboot button
(or Open SNMP …./network/, click on the OID <saveNewSettings>, set a value ≥6).