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IGS-9844/9848GPF Series User Manual
ORing Industrial Networking Corp
1
COPYRIGHT NOTICE
Copyright © 2010 ORing Industrial Networking Corp.
All rights reserved.
No part of this publication may be reproduced in any form without the prior written consent of
ORing Industrial Networking Corp.
TRADEMARKS
is a registered trademark of ORing Industrial Networking Corp.
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Please refer to the Technical Specifications section for more details.
WARRANTY
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a specified warranty period from the invoicedate (5 years for most products).ORing will repair
or replace products found by ORing to be defective within this warranty period, with shipment
expenses apportioned by ORing and the distributor. This warranty does not cover product
modifications or repairs done by persons other than ORing-approved personnel, and this
warranty does not apply to ORing products that are misused, abused, improperly installed, or
damaged by accidents.
Please refer to the Technical Specifications section for the actual warranty period(s) of the
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Information in this publication is intended to be accurate. ORing shall not be responsible for its
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publication without notice.
CONTACT INFORMATION
ORing Industrial Networking Corp.
3F., NO.542-2, Jhongjheng Rd., Sindian District, New Taipei City 231, Taiwan, R.O.C.
Tel: + 886 2 2218 1066 // Fax: + 886 2 2218 1014
Website: www.oring-networking.com
Technical Support
E-mail: [e-mail]
Sales Contact
E-mail: [e-mail] (Headquarters)
[e-mail] (China)

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Table of Content
Getting Started.........................................................................................6
1.1 About IGS-9844/9848GPF....................................................................................6
1.2 Software Features................................................................................................6
1.3 Hardware Specifications.......................................................................................7
Hardware Overview..................................................................................8
2.1 Front Panel...........................................................................................................8
2.1.1 Ports and Connectors.......................................................................................8
2.1.2 LED..................................................................................................................9
2.2 Top Panel........................................................................................................... 10
2.3 Rear Panel......................................................................................................... 10
Hardware Installation............................................................................. 11
3.1 DIN-rail Installation..............................................................................................11
3.2 Wall Mounting..................................................................................................... 12
3.3 Wiring................................................................................................................. 14
3.3.1 Grounding...................................................................................................... 14
3.3.2 Fault Relay..................................................................................................... 14
3.3.3 Redundant Power Inputs................................................................................ 14
3.4 Connection......................................................................................................... 15
3.4.1 Cables............................................................................................................ 15
3.4.2 SFP................................................................................................................ 17
3.4.3 O-Ring/O-Chain.............................................................................................. 18
Redundancy...........................................................................................21
4.1 O-Ring................................................................................................................ 21
4.1.1 Introduction.................................................................................................... 21
4.1.2 Configurations................................................................................................ 21
4.2 O-Chain.............................................................................................................. 23
4.2.1 Introduction.................................................................................................... 23
4.2.2 Configurations................................................................................................ 23
4.3 MRP................................................................................................................... 24
4.3.1 Introduction.................................................................................................... 24
4.3.2 Configurations................................................................................................ 24
4.4 STP/RSTP/MSTP............................................................................................... 25
4.4.1 STP/RSTP...................................................................................................... 25

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4.4.2 MSTP............................................................................................................. 28
4.4.3 CIST............................................................................................................... 31
4.5 Fast Recovery.................................................................................................... 33
Management ..........................................................................................34
5.1 Basic Settings..................................................................................................... 35
5.1.1 System Information......................................................................................... 35
5.1.2 Admin & Password ......................................................................................... 36
5.1.3 Authentication................................................................................................. 37
5.1.4 IP Settings...................................................................................................... 38
5.1.5 IPv6 Settings.................................................................................................. 38
5.1.6 HTTPS........................................................................................................... 40
5.1.7 SSH ............................................................................................................... 40
5.1.8 LLDP.............................................................................................................. 41
5.1.9 Modbus TCP .................................................................................................. 44
5.1.10 Backup/Restore Configurations....................................................................... 45
5.1.11 Firmware Update............................................................................................ 45
5.2 DHCP Server...................................................................................................... 45
5.2.1 Basic Settings................................................................................................. 45
5.2.2 Dynamic Client List......................................................................................... 46
5.2.3 Client List....................................................................................................... 46
5.2.4 DHCP Relay................................................................................................... 46
5.3 Port Setting........................................................................................................ 49
5.3.1 Port Control.................................................................................................... 49
5.3.2 Port Trunk....................................................................................................... 50
5.3.3 LACP.............................................................................................................. 50
5.3.4 Loop Gourd.................................................................................................... 55
5.4 VLAN.................................................................................................................. 56
5.4.1 VLAN Membership ......................................................................................... 56
5.4.2 Port Configurations......................................................................................... 57
5.4.3 Private VLAN.................................................................................................. 65
5.5 SNMP................................................................................................................. 67
5.5.1 SNMP System Configurations......................................................................... 67
5.5.2 SNMP Community Configurations................................................................... 69
5.5.3 SNMP User Configurations............................................................................. 70
5.5.4 SNMP Group Configurations........................................................................... 71
5.5.5 SNMP ViewConfigurations............................................................................. 72
5.5.6 SNMPAccess Configurations......................................................................... 73

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5.6 Traffic Prioritization............................................................................................. 74
5.6.1 Storm Control................................................................................................. 74
5.6.2 Port Classification........................................................................................... 75
5.6.3 Port Tag Remaking......................................................................................... 77
5.6.4 Port DSCP...................................................................................................... 78
5.6.5 Policing .......................................................................................................... 79
5.6.6 Scheduling and Shaping................................................................................. 80
5.6.7 Port Scheduler................................................................................................ 83
5.6.8 Port Shaping................................................................................................... 84
5.6.9 DSCP-based QoS .......................................................................................... 84
5.6.10 DSCP Translation........................................................................................... 85
5.6.11 DSCP Classification........................................................................................ 86
5.6.12 QoS Control List............................................................................................. 87
5.6.13 QoS Counters................................................................................................. 89
5.6.14 QCL Status..................................................................................................... 89
5.7 Multicast............................................................................................................. 91
5.7.1 IGMP Snooping.............................................................................................. 91
5.7.2 VLAN Configurations of IGMP Snooping......................................................... 92
5.7.3 IGMP Snooping Status.................................................................................... 93
5.7.4 Groups Information of IGMP Snooping............................................................ 93
5.8 Security.............................................................................................................. 94
5.8.1 Remote Control Security Configurations......................................................... 94
5.8.2 Device Binding............................................................................................... 95
5.8.3 ACL.............................................................................................................. 100
5.8.4 Authentication, Authorization, and Accounting................................................112
5.8.5 RAIDUS.........................................................................................................112
5.8.6 NAS (802.1x).................................................................................................118
5.9 Alerts................................................................................................................ 128
5.9.1 Fault Alarm................................................................................................... 128
5.9.2 System Warning........................................................................................... 129
5.10 Monitor and Diag.............................................................................................. 132
5.10.1 MAC Table.................................................................................................... 132
5.10.2 Port Statistics................................................................................................ 135
5.10.3 Port Mirroring................................................................................................ 137
5.10.4 System Log Information................................................................................ 138
5.10.5 Cable Diagnostics......................................................................................... 139
5.10.6 SFP Monitor................................................................................................. 140

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5.10.7 Ping.............................................................................................................. 141
5.11 Synchronization................................................................................................ 142
5.12 Troubleshooting................................................................................................ 144
5.12.1 Factory Defaults........................................................................................... 144
5.12.2 System Reboot............................................................................................. 144
5.13 Command Line Interface Management............................................................. 145

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Getting Started
1.1 About IGS-9844/9848GPF
Featuring network redundancy capabilities, the
IGS-9844/9848GPF series are managed Ethernet
switches with eight 10/100/1000Base-T(X) ports, four
100/1000Base-X SFP ports, and four (IGS-9844 GPF
series) or eight (IGS-9848GPF series) 1000Base-X
optical fiber ports with SC connectors. With complete
support for Ethernet redundancy protocols such as
O-Ring (recovery time < 30ms over 250 units of
connection) and MSTP (RSTP/STP compatible), the switch can protect your mission-critical
applications from network interruptions or temporary malfunctions with its fast recovery
technology. Featuring a wide operating temperature from -40oC to 70oC, the
IGS-9844/9848GPF series can be managed centrally and conveniently via Open-Vision, web
browsers, Telnet and console (CLI) configuration, making it one of the most reliable choice for
highly-managed and Fiber Ethernet power substation and rolling stock application
1.2 Software Features
Supports O-Ring (recovery time < 30ms over 250 units of connection) and
MSTP(RSTP/STP compatible) for Ethernet redundancy
Supports Open-Ring to interoperate with other vendors‟ring technology in open
architecture
Supports O-Chain to allowmultiple redundant network rings
Supportsstandard IEC 62439-2 MRP (Media Redundancy Protocol) function
Supports IEEE 1588v2 clock synchronization
Supports IPV6 newinternet protocol version
Supports Modbus TCP protocol
Supports HTTPS/SSHprotocols to enhance network security
Supports IEEE 802.3az Energy-Efficient Ethernet technology
Supports SMTP client
Supports IP-based bandwidth management
Supports application-based QoS management
SupportsDevice Binding security function
Supports DOS/DDOS auto prevention
Supports IGMP v2/v3 (IGMP snooping support) to filter multicast traffic

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SupportsSNMP v1/v2c/v3 & RMON & 802.1Q VLAN network management
Supports ACL, TACACS+ and 802.1x user authentication for security
Supports 9.6K Bytes Jumbo frame
Supports multiple notifications for incidents
Supports management via Web-based interfaces, Telnet, Console (CLI), and Windows
utility (Open-Vision)
Supports LLDP protocol
1.3 Hardware Specifications
Redundant DC power inputs
Operating Temperature: -40 to 70oC
Storage Temperature: -40 to 85 oC
Operating Humidity: 5% to 95%, non-condensing
Casing: IP-30
8 x 10/100/1000Base-T(X)
4 x 100/1000Base-XSFP ports
4 x 1000Base-X optical fiber ports (IGS-9844 GPF series) or 8 x 1000Base-X
(IGS-9848GPF series) optical fiber ports
1 x console port
Dimensions: 96.4 (W) x 105.5 (D) x 154 (H) mm (3.8 x 4.15 x6.06 inch)

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Hardware Overview
2.1 Front Panel
2.1.1 Ports and Connectors
The IGS-9844/9848GPF series provide the following ports on the front panel. The Ethernet
ports on the switches use RJ-45 connectors and the SFP module slots SC style connectors.
Port
Description
Copper port
8 x 10/100/1000Base-T(X)
SFP port
4 x 100/1000Base-X
Fiber port
4 x 1000Base-X (IGS-9844GPF series) or 8 x 1000Base-X
(IGS-9848GPF series), SC connector
Console port
1 console port
Reset button
Press reset button 2 to 3 seconds to reset the switch.
Press reset button 5 seconds to reset the switch to factory defaults.
IGS-9844GPF
1. SFP fiber ports
2. RJ-45 ports
3. Power LED
4. PWR1 LED
5. PWR2 LED
6. Ring Master status LED
7. Ring status LED
8. Faulty relay indicator
9. Console port
10.Fiber ports

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IGS-9848GPF
2.1.2 LED
LED
Color
Status
Description
PWR
Green
On
DC power on
PW1
Green
On
DC power module 1 activated
PW2
Green
On
DC power module 2 activated
R.M
Green
On
Ring Master
Ring
Green
On
Ring enabled
Blinking
Ring structure is broken (i.e. part of the ring is
disconnected)
Fault
Amber
On
Faulty relay (power failure or port
malfunctioning)
10/100/1000Base-T(X) Fast Ethernet ports
Link/Act
Green
On
Ethernet running at 1000Mbps
Amber
On
Ethernet running at 10/100Mbps
SFP & 100Base-FX or 1000Base-XFiber Port
Link/Act
Green
On
Port link up
On
Transmitting data
1. SFP fiber ports
2. RJ-45 ports
3. Power LED
4. PWR1 LED
5. PWR2 LED
6. Ring Master status LED
7. Ring status LED
8. Faulty relay indicator
9. Console port
10.Fiber ports

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2.2 Top Panel
Beloware the top panel components of the IGS-9844/9848GPF series:
1. Terminal blocks: PWR1, PWR2 (12-48V DC), Relay
2. Ground wire. For more information on how to ground the switch, please refer to 3.3.1
Grounding.
2.3 Rear Panel
On the rear panel of the switch sit three sets of screw holes. The two sets placed in
triangular patterns on both ends of the rear panel are used for wall-mounting (red boxes in the
figure below) and the setof four holes in the middle are used for Din-rail installation (blue box
in the figure below). For more information on installation, please refer to 23.1 Din-rail
Installation.
1. Wall-mount screw
holes
2. Din-rail screw holes

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Hardware Installation
3.1 DIN-rail Installation
The device comes with a DIN-rail kit to allow you to fasten the switch to a DIN-rail in any
environments.
DIN-rail Kit Measurement
Installing the switch on the DIN-rail is easy. First, screw the Din-rail kit onto the back of the
switch, right in the middle of the back panel. Then slide the switch onto a DIN-rail from the
Din-rail kit and make sure the switch clicks into the rail firmly.

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3.2 Wall Mounting
Besides Din-rail,the switch can be fixed to the wall via a wall mount panel, which can be found
in the package.
Wall-Mount Kit Measurement
To mount the switch onto the wall, followthe steps:
1. Screw the two pieces of wall-mount kits onto both ends of the rear panel of the switch. A
total of six screws are required, as shown below.

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2. Use the switch, with wall mount plates attached, as a guide to mark the correct locations of
the four screws.
3. Insert four screw heads through the large parts of the keyhole-shaped apertures, and then
slide the switch downwards. Tighten the four screws for added stability.
Note: Instead of screwing the screws in all the way, leave about 2 mm to allow room for sliding
the wall mount panel between the wall and the screws.

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3.3 Wiring
3.3.1 Grounding
Grounding and wire routing help limit the effects of noise due to electromagnetic interference
(EMI). Run the ground connection from the ground screw to the grounding surface prior to
connecting devices.
3.3.2 Fault Relay
The two sets of relay contacts of the 6-pin terminal block connector are used to detect
user-configured events. The two wires attached to the fault contacts form an open circuit when
a user-configured when an event is triggered. If a user-configured event does not occur, the
fault circuit remainsclosed.
3.3.3 Redundant Power Inputs
The switch has two sets of power inputs, power input 1 and power input 2. The top two
contacts and the bottom two contacts of the 6-pin terminal block connector on the switch‟s top
panel are used for the two digital inputs. Follow the steps below to wire redundant power
WARNING
Do not disconnect modules or wires unless power has been switched
off or the area is known to be non-hazardous.The devices may only
be connected to the supply voltage shown on the type plate.
ATTENTION
1. Be sure to disconnect the power cord before installing and/or
wiring your switches.
2. Calculate the maximum possible current ineach power wire and
common wire. Observe all electrical codes dictating the maximum
current allowable for each wire size.
3. If the current goes above the maximum ratings, the wiring could
overheat, causing serious damage to your equipment.
4. Use separate paths toroute wiring for power and devices. If power
wiring and device wiring paths must cross, make sure the wires
are perpendicular atthe intersection point.
5. Do not run signal or communications wiring and power wiring
through the same wire conduit.To avoid interference, wires with
different signal characteristics should be routed separately.
6. You can use the type of signal transmitted through a wire to
determine which wires should be keptseparate. The ruleof thumb
is that wiring sharing similar electrical characteristics can be
bundled together
7. You should separate input wiring from output wiring
8. It is advised to label the wiring to all devices in the system

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inputs.
Step 1: insert the negative/positive wires into the V-/V+
terminals, respectively.
Step 2: to keep the DC wires from pulling loose, use a small
flat-blade screwdriver to tighten the wire-clamp screws on
the front of the terminalblock connector.
3.4 Connection
3.4.1 Cables
1000/100BASE-TX/10BASE-T Pin Assignments
The IGS-9844/9848GPF series have standard Ethernet ports. According to the link type, the
switch uses CAT 3, 4, 5,5e UTP cables to connect toany other network devices (PCs, servers,
switches, routers, or hubs). Please refer to the following table for cable specifications.
Cable Types and Specifications:
Cable
Type
Max. Length
Connector
10BASE-T
Cat. 3, 4, 5 100-ohm
UTP 100 m (328 ft)
RJ-45
100BASE-TX
Cat. 5 100-ohm UTP
UTP 100 m (328 ft)
RJ-45
1000BASE-TX
Cat. 5/Cat. 5e 100-ohm
UTP
UTP 100 m (328ft)
RJ-45
With 10/100/1000Base-T(X) cables, pins1 and 2 are used for transmitting data, and pins3 and
6 are used for receiving data.
10/100 Base-T(X) RJ-45 Pin Assignments:
Pin Number
Assignment
1
TD+
2
TD-
3
RD+
4
Not used
5
Not used
6
RD-
7
Not used
8
Not used

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1000 Base-T RJ-45 Pin Assignments:
Pin Number
Assignment
1
BI_DA+
2
BI_DA-
3
BI_DB+
4
BI_DC+
5
BI_DC-
6
BI_DB-
7
BI_DD+
8
BI_DD-
The IGS-9844GP series switches support auto MDI/MDI-X operation. You can use a cable to
connect the switch to a PC. The tablebelowshows the 10/100Base-T(X) MDI and MDI-Xport
pin outs.
10/100 Base-T(X) MDI/MDI-X Pin Assignments:
Pin Number
MDI port
MDI-X port
1
TD+(transmit)
RD+(receive)
2
TD-(transmit)
RD-(receive)
3
RD+(receive)
TD+(transmit)
4
Not used
Not used
5
Not used
Not used
6
RD-(receive)
TD-(transmit)
7
Not used
Not used
8
Not used
Not used
1000Base-T(X) MDI/MDI-X Pin Assignments:
Pin Number
MDI port
MDI-X port
1
BI_DA+
BI_DB+
2
BI_DA-
BI_DB-
3
BI_DB+
BI_DA+
4
BI_DC+
BI_DD+
5
BI_DC-
BI_DD-
6
BI_DB-
BI_DA-
7
BI_DD+
BI_DC+
8
BI_DD-
BI_DC-

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Note: “+” and “-” signs represent the polarity of the wires that make up each wire pair.
RS-232 console port wiring
The IGS-9844/9848GPF series can be managed via console ports using a RS-232 cable
which can be found in the package. You can connect the port to a PC via the RS-232 cable
with a DB-9 female connector. The DB-9 female connector of the RS-232 cable should be
connected the PC while the other end of the cable (RJ-45 connector) should be connected to
the console port of the switch.
PC pin out (male) assignment
RS-232 with DB9 female connector
DB9 to RJ 45
Pin #2 RD
Pin #2 TD
Pin #2
Pin #3 TD
Pin #3 RD
Pin #3
Pin #5 GD
Pin #5 GD
Pin #5
3.4.2 SFP
The switch comes with fiber optical ports that can connect to other devices using SFP modules.
The fiber optical ports are in multi-mode and single-mode with LC connectors. Please
remember that the TXportof Switch Ashould be connected to the RXport of Switch B.
Fiber cord
Switch A
Switch B

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3.4.3 O-Ring/O-Chain
O-Ring
You can connect three or more switches to form a ring topology to gain network redundancy
capabilities through the following steps.
1. Connect each switch to form a daisychain using an Ethernet cable.
2. Set one of the connected switches to be the master and make sure the port setting of each
connected switch on the management page corresponds to the physical ports connected. For
information about the port setting, please refer to 4.1.2 Configurations.
3. Connect the last switch to the first switch to form a ring topology.
Coupling Ring
If you already have two O-Ring topologies and would like to connect the rings, you can form
them into a couping ring. All you need to do is select two switches from each ring to be
connected, for example, switch A and B from Ring 1 and switch C and D from ring 2. Decide
which port on each switch to be used as the coupling port and then link them together, for
example, port 1 of switch A to port 2 of switch C and port 1 of switch B to port 2 of switch D.
Then, enable Coupling Ring option by checking the checkbox on the management page and
select the coupling ring in correspondance to the connected port. For more inforamtion on port
setting, please refer to 4.1.2 Configurations. Once the setting is completed, one of the
connections will act as the main path while the other will act as the backup path.

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Dual Homing
If you want to connect your ring topology to a RSTP network environment, you can use dual
homing. Choose two switches (Switch A & B) from the ring for connecting to the switches in the
RSTP network (core switches). The connection of one of the switches (Switch A or B) will act
as the primary path, while the other will act as the backup path that is activated when the
primary path connection fails.