Planet GSW-1600HP User manual

16-Port 10/100/1000Mbps 802.3at PoE+ Ethernet Switch
GSW-1600HP
User's Manual

Trademarks
Copyright © PLANET Technology Corp. 2013.
Contents subject to revision without prior notice.
PLANET is a registered trademark of PLANET Technology Corp. All other trademarks
belong to their respective owners.
Disclaimer
PLANET Technology does not warrant that the hardware will work properly in all
environments and applications, and makes no warranty and representation, either
implied or expressed, with respect to the quality, performance, merchantability, or
tness for a particular purpose.
PLANET has made every effort to ensure that this User’s Manual is accurate;
PLANET disclaims liability for any inaccuracies or omissions that may have
occurred.
Information in this User’s Manual is subject to change without notice and does not
represent a commitment on the part of PLANET. PLANET assumes no responsibility
for any inaccuracies that may be contained in this User’s Manual. PLANET makes
no commitment to update or keep current the information in this User’s Manual,
and reserves the right to make improvements to this User’s Manual and/or to the
products described in this User’s Manual, at any time without notice.
If you nd information in this manual that is incorrect, misleading, or incomplete,
we would appreciate your comments and suggestions.
FCC Warning
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with
the Instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at
his own expense.

3
CE Mark Warning
This is a Class A product. In a domestic environment, this product may cause radio
interference, in which case the user may be required to take adequate measures.
Energy Saving Note of the Device
This power required device does not support Standby mode operation.
For energy saving, please remove the power cable to disconnect the device from
the power circuit.
Without removing power cable, the device will still consuming power from the
power source. In the view of Saving the Energy and reduce the unnecessary power
consuming, it is strongly suggested to remove the power connection for the device
if this device is not intended to be active.
WEEE Warning
To avoid the potential effects on the environment and human health as a
result of the presence of hazardous substances in electrical and electronic
equipment, end users of electrical and electronic equipment should
understand the meaning of the crossed-out wheeled bin symbol. Do not
dispose of WEEE as unsorted municipal waste and have to collect such WEEE
separately.
Revision
PLANET 16-Port 10/100/1000Mbps 802.3at PoE+ Ethernet Switch User's Manual
For Model: GSW-1600HP
Revision: 1.0 (February, 2013)
Part No.: 2351-AK5020-000

Table of Contents
1. Introduction ............................................................................................... 5
1.1 Checklist............................................................................................. 5
1.2 Product Description.............................................................................. 5
1.3 Features ............................................................................................. 6
1.4 Specication........................................................................................ 7
2. Hardware Description .................................................................................. 9
2.1 Front Panel ......................................................................................... 9
2.1.1 LED Indicators ........................................................................... 9
2.2 Rear Panel .........................................................................................10
3. Hardware Installation .................................................................................11
3.1 Desktop Installation ............................................................................12
3.2 Rack Mounting ...................................................................................13
3.3 Product Application .............................................................................14
3.4 Power over Ethernet Powered Device ...................................................15
4. Power over Ethernet Overview ....................................................................16
5. Troubleshooting .........................................................................................19
Appendix a networking connection ...................................................................20
A.1 Switch's Data RJ-45 Pin Assignments - 1000Mbps, 1000Base-T ..............20
A.2 10/100Mbps, 10/100Base-TX ...............................................................20

5
1. Introduction
1.1 Checklist
Check the contents of your package for following parts:
GSW-1600HP x 1
User's Manual x 1
Power Cord x 1
Rubber Feet x 4
Two Rack-mounting Brackets with Attachment Screws x 8
If any of these pieces are missing or damaged, please contact your dealer
immediately, if possible, retain the carton including the original packing material,
and use them against to repack the product in case there is a need to return it to
us for repair.
In the following section, the term “802.3at PoE+ Ethernet Switch” means the
Switch device, ie. GSW-1600HP; term of “switch” can be any third switches.
1.2 Product Description
Centralized Power Management for Gigabit Ethernet PoE Networking
To fulll the needs of higher power required PoE network applications with Gigabit
speed transmission, the 16-Port Gigabit High Power over Ethernet Switch –
GSW-1600HP which features high performance Gigabit IEEE 802.3af PoE (Up
to 15.4W) and IEEE 802.3at High-Power PoE (Up to 30.8W) on all ports.
By supporting reliable switching technology and advanced networking features
which optimize the installation and power management of network devices such
as wireless access points (AP), Voice over IP (VoIP) phones, and security video
cameras. The PoE capabilities also help to reduce deployment costs for network
devices like the wireless AP as a result of freeing from restrictions of power outlet
locations. Power and data switching are integrated into one unit and delivered
over a single cable. It thus eliminates cost for additional AC wiring and reduces
installation time.
Perfect Integration Solution for IP PoE Camera and NVR System
The GSW-1600HP provides 16 10/100/1000Mbps 802.3at PoE ports, it offer
sufcient PoE power for 16 IEEE 802.3af PoE IP camera devices at the same time.
The GSW-1600HP also can support for connecting to one 16-Channel NVR or two
8-Channel NVR systems, also uplink to backbone switch and monitor center. With
high performance switch architecture, the recorded video les from 16 IEEE 802.3af
PoE IP Camera devices can be saved in the NVR systems; the NVR systems can be

6
controlled and monitored both in the local LAN and the remote site via Internet,
the GSW-1600HP brings an ideal secure surveillance system with lower total cost.
Energy-Saving
The GSW-1600HP uses new engine that incorporates one advanced Green
Networking technologies:
Idle Mode Link Down power saving
Intelligent Scales Power based on cable length
The Idle mode Link Down power saving of the GSW-1600HP complies with Pre-
IEEE 802.3az Energy Efcient Ethernet (EEE) standard to automatically lower power
for a given port when it is not linked. The Intelligent Scales Power technology
actively determines the appropriate power level based on the cable length. When
connecting to the GSW-1600HP with Ethernet cable shorter than 20m, a device
can obtain maximum power saving because the GSW-1600HP would automatically
detect the Ethernet cable length and reduce power usage. The connected device
can substantially reduce overall power consumption, which makes a signicant
contribution to energy saving.
Easy Installation & Cable Connection
Providing data transfer and High Power PoE in one unit, the GSW-1600HP shall
reduce the need of extension cables and dedicated electrical outlets on the wall,
ceiling or any unreachable place. It helps to lower the installation costs and
simplify the installation effort. All RJ-45 copper interfaces in the GSW-1600HP
supports 10/100/1000Mbps Auto-Negotiation for optimal speed detection through
RJ-45 Category 6, 5 or 5e cables. It also supports standard Auto-MDI/MDI-X that
can detect the type of connection to any Ethernet device without requiring special
straight or crossover cables.
1.3 Features
RJ-45 Interface
❏16-Port 10/100/1000Mbps Gigabit Ethernet ports
❏16-Port supports 52V DC power to PoE Powered Device
Power over Ethernet
❏Comply with IEEE 802.3af / IEEE 802.3at Power over Ethernet
❏Up to 16 IEEE 802.3af / IEEE 802.3at devices powered
❏Supports PoE Power up to 30 Watts for each PoE port
❏Auto detect powered device (PD)
❏Circuit protection prevents power interference between ports
❏Remote power feeding up to 100m

7
Switching
❏Hardware based 10/100/1000Mbps Auto-Negotiation and Auto MDI/MDI-X
❏Flow control for Full Duplex operation and back pressure for Half Duplex
operation
❏Integrates address look-up engine, supporting 8K absolute MAC addresses
❏9K Jumbo Frame supports at all speed (10/100/1000Mbps)
❏Automatic address learning and address aging
❏ Supports Pre-Energy-Efcient Ethernet (EEE) function (IEEE 802.3az)
Hardware
❏19-inch desktop size, 1U height
❏LED indicators for PoE ready and PoE activity
❏Ethernet Link Energy-Saving technology
Link down power saving
Intelligent scales power based on cable length
1.4 Specication
Model
GSW-1600HP
16-Port 10/100/1000Mbps 802.3at PoE+ Ethernet
Switch
Hardware Specication
Network Connector 16-Port RJ-45 for 10/100/1000Base-TX
PoE Inject Port 16-Port with 802.3af / 802.3at PoE injector function
LED Display
System:
Power (Green)
PoE Ethernet Interfaces
PoE In-Use (Orange)
10/100/1000Base-T Ports
1000 (LNK/ACT, Green), 10/100 (LNK/ACT, Orange)
Switch Architecture Store and Forward switch architecture
MAC Address 8K MAC address table with Auto learning function
Switch Fabric 32Gbps
Switch Throughput 23.8Mpps@64Bytes
Jumbo Packet Size 9K Bytes
Flow Control Back pressure for Half-Duplex. IEEE 802.3x Pause
Frame for Full-Duplex

8
Power Requirement AC 100~240V, 50/60Hz, 3.5A max.
Power Consumption Max. 260 Watts / 885 BTU
Dimension (W x D x H) 445 x 207 x 45 mm (1U height)
Weight 2.54kg
Power over Ethernet
PoE Standard
IEEE 802.3af Power over Ethernet / PSE
IEEE 802.3at Enhancement Power over Ethernet /
PSE
PoE Power Output
Per Port 52V DC, 300mA. Max. 15.4 Watts (IEEE
802.3af)
Per Port 52V DC, 590mA. Max. 30 Watts (IEEE
802.3at)
PoE Power Budget 220 Watts
Number of PD, 7Watts 16
Number of PD, 15.4Watts 14
Number of PD, 30.8Watts 7
Environment
Operating environment 0 ~ 50 Degree C
Storage environment -40 ~ 70 Degree C
Operating Humidity 5 ~ 95%, relative humidity, non-condensing
Storage Humidity 5 ~ 95%, relative humidity, non-condensing
Standard Conformance
Standard Compliance
IEEE 802.3
IEEE 802.3u
IEEE 802.3x
IEEE 802.3af
IEEE 802.3at
IEEE 802.3az
Ethernet
Fast Ethernet
Flow Control
Power over Ethernet
Enhancement Power over Ethernet
Pre-Energy-Efcient Ethernet
Regulation Compliance FCC Class A, CE

9
2. Hardware Description
This product provides three different running speeds – 10Mbps, 100Mbps and
1000Mbps in the same switch and automatically distinguishes the speed of
incoming connection.
This section describes the hardware features of GSW-1600HP. For easier
management and control of the Switch, familiarize yourself with its display
indicators, and ports. Front panel illustrations in this chapter display the unit LED
indicators. Before connecting any network device to the GSW-1600HP, please read
this chapter carefully.
2.1 Front Panel
The Front Panel of the GSW-1600HP 802.3at PoE+ Ethernet Switch consists of 16 x
Auto-Sensing 10/100/1000Mbps Ethernet RJ-45 Ports. The LED Indicators are also
located on the front panel of the GSW-1600HP.
Figure 2-1: GSW-1600HP Switch Front Panel
2.1.1 LED Indicators
System
LED Color Function
PWR Green Light: Indicate the Switch has power.
Per 10/100/1000Mbps Port
LED Color Function
1000
LNK/ACT Green
Light: Indicate the link through that port is
successfully established at 1000Mbps.
Blink: Indicate that the Switch is actively sending or
receiving data over that port.
10/100
LNK/ACT Orange
Light: Indicate the link through that port is
successfully established at 10/100Mbps.
Blink: Indicate that the Switch is actively sending or
receiving data over that port.
PoE In Use Orange Light: Indicate the port is providing 52V DC in-line
power.

10
2.2 Rear Panel
The rear panel of the GSW-1600HP PoE Fast Ethernet Switch indicates an AC inlet
power socket, which accepts input power from 100 to 240V AC, 50-60Hz, 3.5A.
Figure 2-2: GSW-1600HP Switch Rear Panel
Power
Notice
1. The device is a power-required device, it means, it will not work
till it is powered. If your networks should active all the time,
please consider using UPS (Uninterrupted Power Supply) for your
device. It will prevent you from network data loss or network
downtime.
2. In some area, installing a surge suppression device may also
help to protect your GSW-1600HP from being damaged by
unregulated surge or current to the GSW-1600HP or the power
adapter.

11
3. Hardware Installation
Start up
Please refer to the followings for your cabling:
10/100/1000Base-TX
All 10/100/1000Base-T ports come with Auto-Negotiation capability. They
automatically support 1000Base-T, 100Base-TX and 10Base-T networks. Users only
need to plug a working network device into one of the 10/100/1000Base-T ports,
and then turn on the GSW-1600HP. The port will automatically runs in 10Mbps,
20Mbps, 100Mbps or 200Mbps and 1000Mbps or 2000Mbps after the negotiation
with the connected device.
Cabling
Each 10/100/1000Base-T ports use RJ-45 sockets -- similar to phone jacks --
for connection of unshielded twisted-pair cable (UTP). The IEEE 802.3 / 802.3u
802.3ab Fast / Gigabit Ethernet standard requires Category 5 UTP for 100Mbps
100Base-TX. 10Base-T networks can use Cat.3, 4, 5 or 1000Base-T use 5/5e/6 UTP
(see table below). Maximum distance is 100meters (328 feet).
Port Type Cable Type Connector
10Base-T Cat. 3, 4, 5, 2-pair RJ-45
100Base-TX Cat. 5, 5e UTP, 4-pair RJ-45
1000Base-T Cat.5/5e/6 UTP, 4-pair RJ-45
Any Ethernet devices like hubs/ PCs can connect to the GSW-1600HP by using
straight-through wires. The eight-10/100Mbps ports are auto-MDI/MDI-X can be
used on straight-through or crossover cable.

12
3.1 Desktop Installation
To install the 802.3at PoE+ Ethernet Switch on desktop, simply follow the next
steps:
Step1: Attach the rubber feet to the recessed areas on the bottom of the 802.3at
PoE+ Ethernet Switch, as shown in Figure 3-1.
Figure 3-1: Attaching the Rubber Feet to the 802.3at PoE+ Ethernet Switch
Step2: Place the 802.3at PoE+ Ethernet Switch on desktop near an AC power
source.
Step3: Keep enough ventilation space between the 802.3at PoE+ Ethernet Switch
and the surrounding objects.
Note
When choosing a location, please keep in mind the environmental
restrictions discussed in Chapter 1, Section 4, in Specification.
Step4: Connect your 802.3at PoE+ Ethernet Switch to 802.3af / 802.3at complied
Power Devices (PD) and other network devices.
A. Connect one end of a standard network cable to the 10/100/1000 RJ-
45 ports at front panel of the 802.3at PoE+ Ethernet Switch.
B. Connect the other end of the cable to the network devices such as
printer servers, workstations or routers…etc.
Note
Connection to the Switch requires UTP Category 5, 5e, 6 network
cabling with RJ-45 tips. For more information, please see the
Cabling Specification in Appendix A.

13
Step5: Supply power to the 802.3at PoE+ Ethernet Switch.
A. Connect one end of the power cable to the 802.3at PoE+ Ethernet
Switch.
B. Connect the power plug of the power cable to a standard wall outlet.
When the 802.3at PoE+ Ethernet Switch receives power, the Power LED should
remain solid Green.
3.2 Rack Mounting
To install the 802.3at PoE+ Ethernet Switch in a 19-inch standard rack, follow the
instructions described below.
Step1: Place your 802.3at PoE+ Ethernet Switch on a hard at surface, with the
front panel positioned towards your front side.
Step2: Attach a rack-mount bracket to each side of the 802.3at PoE+ Ethernet
Switch with supplied screws attached to the package. Figure 3-2 shows
how to attach brackets to one side of the 802.3at PoE+ Ethernet Switch.
Figure 3-2: Attaching the Brackets to the 802.3at PoE+ Ethernet Switch.
You must use the screws supplied with the mounting brackets.
Damage caused to the parts by using incorrect screws would inval-
idate the warranty.
Step3: Secure the brackets tightly.
Step4: Follow the same steps to attach the second bracket to the opposite side.
Step5: After the brackets are attached to the Switch, use suitable screws to
securely attach the brackets to the rack, as shown in Figure 3-3.

14
Figure 3-3: Mounting the 802.3at PoE+ Ethernet Switch in a Rack
Step6: Proceeds with the steps 4 and steps 5 of session 3.1 Desktop Installation
to connect the network cabling and supply power to your Switch.
3.3 Product Application
Department/ Workgroup PoE Switch:
Providing 16-Port PoE in-line power interfaces, the GSW-1600HP can easily build
a power centrally-controlled IP phone system, IP Camera system and Wireless
AP group for the enterprise. Cameras can be installed around the corner in the
company or campus for surveillance demands. Without the power-socket limitation,
the Switch makes the installation of cameras more easily and efciently.
PoE IP Camera
PoE IP Camera
PoE IP Camera
PoE IP Camera
IP Camera
IP Camera
PoE Splitter
PoE Splitter
Campus
1000Base-T UTP
Non-PoE Camera802.3at PoE IP Camera
802.3af PoE IP CameraCenter of Surveillance
GSW-1600HP
NVRPC
PoE
PoE
PoE
PoE
DC Power Line (DC)
DC
DC
PoE
1000Base-T UTP with PoE
Figure 3-4: Department / Workgroup PoE Switch Connection

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3.4 Power over Ethernet Powered Device
3~5 Watts
Voice over IP phones
Enterprise can install POE VoIP Phone, ATA and other
Ethernet/non-Ethernet end-devices to the central where
UPS is installed for un-interrupt power system and
power control system.
6~12 Watts
Wireless LAN Access Points
Museum, Sightseeing, Airport, Hotel, Campus, Factory,
Warehouse can install the Access Point any where with
no hesitation.
10~12 Watts
IP Surveillance
Enterprise, Museum, Campus, Hospital, Bank, can
install IP Camera without limits of install location – no
need electrician to install AC sockets.
3~12 Watts
PoE Splitter
PoE Splitter split the PoE 48V DC over the Ethernet
cable into 5/12V DC power output. It frees the device
deployment from restrictions due to power outlet
locations, which eliminate the costs for additional AC
wiring and reduces the installation time.
30 Watts
High Power Speed Dome
This state-of-the-art design is considerable to t in
various network environments like trafc centers,
shopping malls, railway stations, warehouses, airports,
and production facilities for the most demanding
outdoor surveillance applications- no need electrician to
install AC sockets.
Note
Since the GSW-1600HP per PoE port supports 51V DC PoE power
output, please check and assure the Powered Device (PD) accept-
able DC power range is from 51V DC. Otherwise, it will damage the
Powered Device (PD).

16
4. Power over Ethernet Overview
What is PoE?
The PoE is an abbreviation of Power over Ethernet; the PoE technology means
a system to pass electrical power safely, along with data on Ethernet UTP cable.
The IEEE standard for PoE technology requires Category 5 cable or higher for high
power PoE levels, but can operate with category 3 cable for low power levels.
Power is supplied in common modeover two or more of the differential pairs of
wires found in the Ethernetcables and comes from a power supply within a PoE-
enabled networking device such as an Ethernet switch or can be injected into a
cable run with a mid-span power supply.
The original IEEE 802.3af-2003 PoE standard provides up to 15.4 W of DC power
(minimum 44V DC and 350mA) to each device. Only 12.95 W is assured to be
available at the powered device as some power is dissipated in the cable.
The updated IEEE 802.3at-2009 PoE standard also known as PoE+ or PoE plus,
provides up to 25.5 W of power. The 2009 standard prohibits a powered device
from using all four pairs for power
The 802.3af / 802.3at dene two types of source equipment: Mid-Span and End-
Span.
Mid-Span
Mid-Span device is placed between legacy switch and the powered device. Mid-
Span is tap the unused wire pairs 4/5 and 7/8 to carry power, the other four is for
data transmit.
End-Span
End-Span device is direct connecting with power device. End-Span could also tap
the wire 1/2 and 3/6.
PoE System Architecture
The specication of PoE typically requires two devices: the Powered Source
Equipment (PSE) and the Powered Device (PD). The PSE is either an End-Span
or a Mid-Span, while the PD is a PoE-enabled terminal, such as IP Phones, Wireless
LAN, etc. Power can be delivered over data pairs or spare pairs of standard CAT-5
cabling.

17
Powered Source Equipment (PSE)
Power sourcing equipment (PSE) is a device such as a switch that provides
(sources) power on the Ethernet cable. The maximum allowed continuous output
power per cable in IEEE 802.3af is 15.40 W. A later specication, IEEE 802.3at,
offers 25.50 W. When the device is a switch, it is commonly called an End-span
(although IEEE 802.3af refers to it as endpoint). Otherwise, if it's an intermediary
device between a non PoE capable switch and a PoE device, it's called a Mid-span.
An external PoE injector is a Mid-span device.
Powered device
A powered device (PD) is a device powered by a PSE and thus consumes energy.
Examples include wireless access points, IP Phones, and IP cameras. Many powered
devices have an auxiliary power connector for an optional, external, power supply.
Depending on the PD design, some, none, or all power can be supplied from the
auxiliary port, with the auxiliary port sometimes acting as backup power in case of
PoE supplied power failure.
How is the Power Transferred Through the Cable
A standard CAT5 Ethernet cable has four twisted pairs, but only two of these are
used for 10BASE-T and 100BASE-TX. The specication allows two options for using
these cables for power, shown in Figure 1 and Figure 2:
The spare pairs are used. Figure 1 shows the pair on pins 4 and 5 connected
together and forming the positive supply, and the pair on pins 7 and 8 connected
and forming the negative supply. (In fact, a late change to the spec allows either
polarity to be used).
POWER SOURCING
EQUIPMENT (PSE)
POWERED DEVICE
(PD)
SPARE PAIR
SPARE PAIR
SIGNAL PAIR
SIGNAL PAIR
Converter
DC / DC
RX
TX
TX
RX
48V
4
5
1
2
3
6
7
8
4
5
1
2
3
6
7
8
Converter
+/-
+/-
Figure 1 - Power Supplied over the Spare Pins

18
The data pairs are used. Since Ethernet pairs are transformer coupled at each
end, it is possible to apply DC power to the center tap of the isolation transformer
without upsetting the data transfer. In this mode of operation the pair on pins 3
and 6 and the pair on pins 1 and 2 can be of either polarity.
POWER SOURCING
EQUIPMENT (PSE)
POWERED DEVICE
(PD)
SPARE PAIR
SPARE PAIR
SIGNAL PAIR
SIGNAL PAIR
DC / DC
RX
TX
TX
RX
48V
4
5
1
2
3
6
7
8
4
5
1
2
3
6
7
8
+/-
+/-Converter
Figure 2 - Power Supplied over the Data Pins
When to install PoE?
Consider the following scenarios:
You’re planning to install the latest VoIP Phone system to minimize cablingl
building costs when your company moves into new ofces next month.
The company staff has been clamoring for a wireless access point in the picnicl
area behind the building so they can work on their laptops through lunch, but
the cost of electrical power to the outside is not affordable.
Management asks for IP Surveillance Cameras and business access systemsl
throughout the facility, but they would rather avoid another electrician’s
payment.

19
5. Troubleshooting
This chapter contains information to help you solve issues. If the 802.3at PoE+
Ethernet Switch is not functioning properly, make sure the 802.3at PoE+ Ethernet
Switch was set up according to instructions in this manual.
The Link LED is not light
Solution:
Check the cable connection and also try to swap one new cable.
1000Base-TX port link LED is light, but the trafc is irregular
Solution:
Check that the attached device is not set to dedicate full duplex. Some devices use
a physical or software switch to change duplex modes. Auto-negotiation may not
recognize this type of full-duplex setting.
Why the Switch doesn’t connect to the network
Solution:
Check the LNK/ACT LED on the switch Try another port on the Switch Make sure
the cable is installed properly Make sure the cable is the right type Turn off the
power. After a while, turn on power again.
Why connects PoE device to GSW-1600HP and it cannot power on?
Solution:
Please check the cable type of the connection from GSW-1600HP (port 1 to port
16) to the other end. The cable should be an 8-wire UTP, Category 5 or above,
EIA568 cable within 100 meters. A cable with only 4-wire, short loop or over 100
meters, all will affect the power supply.
Please check and assure the device that fully complied with IEEE 802.3af / IEEE
802.3at standard.
What is the power output of each PoE port?
Solution:
1. Each PoE port supports 52V DC, 590mA, max 30 Watts power output. Detect
and inject by the standard of IEEE 802.3at.
2. Each PoE port supports 52V DC, 300mA, max 15.4 Watts power output.
Detect and inject by the standard of IEEE 802.3af.

20
Appendix a networking connection
A.1 Switch's Data RJ-45 Pin Assignments - 1000Mbps,
1000Base-T
PIN NO MDI MDI-X
1BI_DA+ BI_DB+
2BI_DA- BI_DB-
3BI_DB+ BI_DA+
4BI_DC+ BI_DD+
5BI_DC- BI_DD-
6BI_DB- BI_DA-
7BI_DD+ BI_DC+
8BI_DD- BI_DC-
Implicit implementation of the crossover function within a twisted-pair cable, or at
a wiring panel, while not expressly forbidden, is beyond the scope of this standard.
A.2 10/100Mbps, 10/100Base-TX
When connecting Switch to another Fast Ethernet switch, a straight or crossover
cable might necessary. Each port of the Switch supports auto-MDI/MDI-X detection.
That means you can directly connect the Switch to any Ethernet devices without
making a crossover cable. The following table and diagram show the standard RJ-
45 receptacle/connector and their pin assignments:
RJ-45 Connector pin assignment
Contact MDI
Media Dependant Interface
MDI-X
Media Dependant Interface-Cross
1Tx + (transmit) Rx + (receive)
2Tx - (transmit) Rx - (receive)
3Rx + (receive) Tx + (transmit)
4, 5 Not used
6Rx - (receive) Tx - (transmit)
7, 8 Not used