Making the Smart Grid Real 1/122
ZIV
Carrer de les Ciències,149-151
08908 L’Hospitalet de Llobregat,
Barcelona-Spain
Tel.: +34 933 490 700
Fax: +34 933 492 258
Mail to: ziv@zivautomation.com
www.zivautomation.com
GIGABIT/FAST ETHERNET SWITCH TYPE
SW3 (DIN)
USER GUIDE
V04 - May 2019
M0SW3D1905Iv04
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SAFETY SYMBOLS
WARNING OR CAUTION:
This symbol denotes a hazard. Not following the indicated procedure,
operation or alike could mean total or partial breakdown of the
equipment or even injury to the personnel handling it.
NOTE:
Information or important aspects to take into account in a procedure,
operation or alike.
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CONTENTS
Page
1 INTRODUCTION 6
1.1 GENERAL 6
1.2 MAIN CHARACTERISTICS 6
1.3 EQUIPMENT COMPOSITION 10
1.4 TECHNICAL SPECIFICATIONS 11
1.4.1 Switch characteristics 11
1.4.2 Equipment interfaces 11
1.4.3 Accessories 11
1.4.4 Equipment management 13
1.4.5 Additional services 13
1.4.6 Certifications 13
1.4.7 Mechanical characteristics 13
1.4.8 Operating conditions 13
1.5 WARNINGS 15
1.5.1 Warnings before installing 15
1.5.2 Equipment safety considerations 16
2 MECHANICAL AND ELECTRICAL CHARACTERISTICS 17
2.1 10/100BASE-TX (RJ-45) PORTS 21
2.2 100BASE-FX (MULTIMODE, MT-RJ) PORTS 23
2.3 100BASE-FX (MULTIMODE, ST) PORTS 24
2.4 100BASE-FX (MULTIMODE, LC) PORTS 25
2.5 SFP PORTS 25
2.6 SRV PORT 27
3 LED SIGNALLING 28
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Page
4 ACCESS TO THE EQUIPMENT 30
4.1 CONSOLE 30
4.2 HTTP SERVER 31
5 CONFIGURATION AND MANAGEMENT 33
5.1 GENERAL PARAMETERS 34
5.1.1 Equipment identification 35
5.1.2 Access control 35
5.1.3 Others 36
5.1.4 Syslog 36
5.2 ADMINISTRATION 37
5.3 LAN CONFIGURATION 38
5.4 ETHERNET PORTS CONFIGURATION 39
5.5 VLAN CONFIGURATION 43
5.6 BANDWIDTH LIMIT CONFIGURATION 48
5.7 QOS CONFIGURATION 50
5.8 PORTS MONITORING CONFIGURATION 53
5.9 LLDP CONFIGURATION 55
5.10 SNMP CONFIGURATION 58
5.11 STP PROTOCOL CONFIGURATION 60
5.12 NTP/SNTP CONFIGURATION 64
5.13 MULTICAST CONFIGURATION 65
5.13.1 Static 68
5.13.2 GMRP 69
5.13.3 IGMP 70
5.14 ACCESS CONFIGURATION 72
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Page
5.15 SECURITY CONFIGURATION 74
5.15.1 802.1x 75
5.15.2 MAC list 76
5.16 OTHERS CONFIGURATION 77
5.17 REBOOT 78
5.18 CODE REFLASH 78
5.19 CONFIGURATION FILE 79
5.19.1 Upload (from the PC to the equipment) 79
5.19.2 Download (from the equipment to the PC) 80
5.20 EVENT FILES 80
6 STATISTICS 81
APPENDIX A BIBLIOGRAPHY AND ABBREVIATIONS 85
A.1 BIBLIOGRAPHY 86
A.2 ABBREVIATIONS 86
APPENDIX B DATA STRUCTURE IN CLI 89
B.1 ACCESS METHODS 90
B.2 USER CONSOLE COMMANDS 96
B.3 OBTAINING INFORMATION ABOUT THE STATUS AND EQUIPMENT
CONFIGURATION 109
B.4 CERTIFICATE INSTALLATION FOR HTTPS MANAGEMENT 119
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1 INTRODUCTION
1.1 GENERAL
The SW3 is a Gigabit/Fast Ethernet switch intended for big scale LAN deployments where:
port density,
switching performance, and
logical complexity
are the main challenges to surpass.
SW3 devices bring the necessary capabilities to implement the automation of electrical
substations according to the IEC 61850 standard.
The SW3 can be managed locally and remotely, through a local console, Telnet server and
SSH server, or through a built-in web server, HTTP or HTTPS.
The SW3 also supports the SNMPv1, SNMPv2c and SNMPv3 protocols, as well as other
protocols and services such as LLDP, GARP/GMRP, NTP/SNTP, TACACS+ and RADIUS.
1.2 MAIN CHARACTERISTICS
Some of the SW3 most important features are described below.
❖ Grouping of services and architectures.
Services may be grouped and discriminated, some not being accessible with others,
through the configuration of different VLANs.
Each VLAN is different from the others thanks to a specific identifier, called VID, which
is included in the VLAN tag and specified in the standard IEEE 802.1q. It permits
several VLANs to share resources, either switching devices such as the SW3, or links
between switching units, guaranteeing that each VLAN traffic will remain isolated from
the others.
The standard 802.1q admits three types of frames: untagged frames, tagged frames
with the VLAN (VID) identifier and the priority (tagged) or only the priority (priority
tagged, VLAN = 0).
The SW3 may adapt to different network architectures, such as: star, double star, ring,
double ring, and linked rings.
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FIGURE 1 Traffic separation
FIGURE 2 Star topology
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FIGURE 3 Rings
❖ Link Aggregation by LAG function.
The Link Aggregation Group (LAG) function allows grouping several links into a single
aggregated link identifier. FIGURE 3 illustrates an example of link aggregation. From
the point of view of the STP/RSTP protocol, the connection entity is the LAG group
identifier. In this way, the different links that are part of the LAG are not handled
individually and are not considered a loop, and thus it provides the aggregated
bandwidth.
Link aggregation can be created for any of the planned interface functions: user (edge,
untag), inter-switch link (trunk or native) and those associated to the Q-in-Q
functionality (access and core). Once the LAG is selected, the set of parameters of the
interface selected as Leader determines the behaviour of the group.
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❖ Q-in-Q operation.
The SW3 includes two functions that provide Q-in-Q operation (double-tagged). In this
operation mode, the frames include the original tag (C-TAG), either generated by the
client equipment or assigned by the switch itself at the moment is received, and a
second tag, the tag of the provider (S-TAG), which will be the tag used in the network of
the service provider.
The 802.1Q tunnels are a useful tool to reuse the identification VID values of the VLAN,
or for transiting data over third-party networks.
FIGURE 4 Q-in-Q operation
❖ Advanced RSTP implementation.
The SW3 not only complies with the STP and RSTP protocols for resolving loops in the
network and operation in rings, but it also exceeds the recovery times obtained through
said protocols. Thus, the SW3 guarantees recovery times lower than 4 ms per link via
the RSTP standard in case of failure.
❖ Critical services and security.
The different services have their level of importance. For example, sending orders to
open a switch has priority over the traffic from a telephone connection. The SW3 has
Quality of Service (QoS), which identifies critical services, guaranteeing that all traffic
receives the appropriate priority.
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On the other hand, the SW3 implements different security features that prevent
unauthorized access to the traffic system, such as: port disabling, traffic restriction
according to MAC addresses, authentication protocols (TACACS+, RADIUS), etc.
❖ Broadcast traffic limitation.
In order to avoid the network flooding, the SW3 selects maximum volume limits for
different combinations of broadcast, multicast, and flooding messages, in each one of
their ports.
❖ Multicast traffic.
The SW3 has two protocols for adapting the multicast traffic to the desired interfaces.
The protocols are:
• GARP/GMRP (IEEE 802.1D 2004). The GMRP clients request to the SW3 the
selective transmission of the multicast traffic desired by each of them.
• IGMP. The SW3 manages multicast traffic based on the IGMP messages exchanged
by the client devices and the multicast routers (IGMP Snooping). To be operative, the
GARP/GMRP protocol must be INACTIVE.
The SW3 also selects the multicast flows in an explicit and manual way.
❖ Port mirroring.
The SW3 resends traffic copies of one or more ports to another one, the monitoring
port, being able to select incoming or outgoing traffic copies in each monitored port in
an independent manner.
1.3 EQUIPMENT COMPOSITION
The diverse elements comprising the SW3 are supplied in a chassis suitable for DIN-rail
mounting.
It includes a serial maintenance interface (DCE mode), 2 Gigabit Ethernet SFP front bays,
and up to 8 front Fast Ethernet ports, electrical (RJ-45) and optical (MT-RJ or, upon
request, LC or ST).
The power supply may be isolated DC or multirange (V
DC
and VAC).
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1.4 TECHNICAL SPECIFICATIONS
1.4.1 Switch characteristics
➢ Full Duplex Wired Speed switching core.
➢ Port speed automatic detection.
➢ STP and RSTP for resolving loops in the network and operation in rings.
➢ Multiple VLANs management (250 simultaneously).
➢ QoS:
•
the SW3 can use the priority fields included in the IEEE 802.1p tag,
•
as well as the DSCP identifier included in the IP header.
➢ Broadcast and Multicast (Broadcast Storm Control) traffic limitation.
➢ MAC access control lists and 802.1x user authentication.
➢ Q-in-Q operation (double-tagged).
➢ Link aggregation by LAG function, static, according to IEEE 802.1ad.
➢ Port mirroring.
➢ Links in VLAN Native mode.
➢ Interoperability with IEDs (Intelligent Electronic Device) that complies with the
IEC 61850 requirements.
1.4.2 Equipment interfaces
➢ Up to 8 Fast Ethernet front ports, which are the result of the combination of:
•
8 ports in 10/100Base-Tx configuration with RJ-45 connector, or
•
4 ports in 10/100Base-Tx configuration with RJ-45 connector and
4 ports in 100Base-Fx multimode (1300 nm) configuration
with MT-RJ or, upon request, LC or ST connector.
➢ 1 service console (DCE mode).
➢ 2 front Gigabit Ethernet SFP bays (see section 1.4.3).
1.4.3 Accessories
➢ SFP Gibabit/Fast Ethernet SFP modules.
The following list corresponds to verified modules, which comply with the temperature
criteria.
•
SPF 10/100/1000BaseT (4CZ07980012)
type of connector: RJ-45
•
SFP 1000BaseT (4CZ07980001)
type of connector: RJ-45
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•
SFP 1000BaseSx (4CZ07980002)
type of connector: LC
type of fiber: multimode
wavelength: 850 nm
typical maximum distance: 550 m
•
SFP 1000BaseZx (4CZ07980004)
type of connector: LC
type of fiber: singlemode
wavelength: 1530 nm
typical maximum distance: 80 km
•
SFP 1000BaseLx (4CZ07980005)
type of connector: LC
type of fiber: singlemode
wavelength: 1310 nm
typical maximum distance: 10 km
•
SFP 100BaseEx (4CZ07980008)
type of connector: LC
type of fiber: singlemode
wavelength: 1310 nm
typical maximum distance: 40 km
•
SFP 100BaseFx (4CZ07980006)
type of connector: LC
type of fiber: singlemode
wavelength: 1310 nm
typical maximum distance: 10 km
•
SFP 100BaseFx (4CZ07980007)
type of connector: LC
type of fiber: multimode
wavelength: 1310 nm
typical maximum distance: 2 km
➢ Optical fiber Pigtails.
•
Flat RJ45 STP CAT6 cable, 3m length (4GL03000141).
•
Multimode fiber MTRJ-MTRJ, 2m length (4CZ05000010).
•
Multimode fiber MTRJ-SC, 2m length (4CZ05000011).
•
Multimode fiber MTRJ-ST, 2m length (4CZ05000012).
•
Multimode fiber MTRJ-LC, 2m length (4CZ05000013).
•
Multimode fiber LC-LC, 2m length (4CZ05000014).
•
Singlemode fiber LC-LC, 2m length (4CZ05000015).
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1.4.4 Equipment management
➢ Local and remote access, through a local console, Telnet server and SSH server, or
through a built-in web server, HTTP or HTTPS.
1.4.5 Additional services
➢ SNMP (SNMPv1, SNMPv2c and SNMPv3) agent.
➢ NTP server and NTP/SNTP client.
➢ TACACS+ client.
➢ RADIUS client.
➢ GARP/GMRP (IEEE 802.1D 2004).
➢ IGMP snooping.
➢ PVLAN (RFC 5517).
➢ LLDP (IEEE 802.1AB 2016).
➢ TLS 1.0.
1.4.6 Certifications
➢ CE.
➢ Designed for industrial applications.
➢ Designed for Electrical Substations.
1.4.7 Mechanical characteristics
➢ Mechanical enclosure: suitable for DIN rail mounting
(EN 50022, BS 5584, DIN 46277-3).
➢ Dimensions: Height: 167 mm; Width: 51 mm; Depth: 116 mm.
➢ Weight: 850 g
➢ IP protection level: IP 2xB
➢ Material: Grey (RAL 7024) zinc-plated iron.
For more mechanical details, see chapter 2, Mechanical and electrical characteristics.
1.4.8 Operating conditions
➢ Power supply: 10.5-72 VDC or multirange (36-360 VDC, 80-265 VAC).
DC operation is protected by diode against polarity inversion.
Multirange model is also protected against polarity inversion.
➢ Consumption: Maximum consumption at 48 VDC: 12 W.
Maximum consumption at 230 VAC: 22 W.
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➢ Temperature range: from -40ºC to +85ºC
➢ Relative humidity: Not greater than 95%, in accordance with IEC 721-3-3 class
3K5 (climatogram 3K5).
➢ Electrical safety: In accordance with EN 60950 standard.
➢ R.F. emissions: In accordance with EN 55022 standard.
➢ Dielectric strength: In accordance with EN 60255-5 standard.
➢ Electromagnetic compatibility.
•
Electrostatic discharge immunity test:
in accordance with EN 61000-4-2 standard.
•
Radiated, radio-frequency, electromagnetic field immunity test:
in accordance with EN 61000-4-3 standard.
•
Electrical fast transient/burst immunity test:
in accordance with EN 61000-4-4 standard.
•
Surge immunity test:
in accordance with EN 61000-4-5 standard.
•
Immunity to conducted disturbances, induced by radio-frequency fields:
in accordance with EN 61000-4-6 standard.
•
Power frequency magnetic field immunity test:
in accordance with EN 61000-4-8 standard.
•
Damped oscillatory magnetic field immunity test:
in accordance with EN 61000-4-10 standard.
•
Harmonics and interharmonics including mains signalling at a.c. power port, low
frequency immunity tests:
in accordance with EN 61000-4-13 standard.
•
Damped oscillatory wave immunity test:
in accordance with EN 61000-4-18 standard.
•
Voltage dips, short interruptions and voltage variations immunity tests:
in accordance with EN 61000-4-11 standard.
•
Voltage dips, short interruptions and voltage variations on d.c. input power port
immunity tests:
in accordance with EN 61000-4-29 standard.
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1.5 WARNINGS
1.5.1 Warnings before installing
1. The installation of the SW3 in Electrical Substations or Secondary
Substations is generically subject to the fulfilment of all the safety measures
and prevention of risks established for this type of work by the electricity
company that will use these devices and the Safety standards (EN 50110).
2. In order to install and handle the SW3 the following points must be
complied with:
- Only qualified personnel appointed by the electricity company that owns
the installation should carry out the installation and handling of the SW3.
- The environment in which it is to operate should be suitable for the SW3,
fulfilling all the conditions indicated in section 1.4.8.
3. ZIV will not accept responsibility for any injury to persons, installations or third
parties, caused by the non-fulfilment of points 1 and 2.
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1.5.2 Equipment safety considerations
1. There are two power-supply models:
- 48 VDC (10.5-72 VDC), isolated.
- Multirange VDC/VAC.
When using the multirange power supply the earth connection must be made
before connecting any other power-supply cable.
In the isolated 48 VDC model this connection is not compulsory but it is
strongly advisable.
2. ZIV will not accept responsibility for any injury to persons or third parties,
caused by the non-fulfilment of point 1.
1. The terminal contains components sensitive to static electricity, the following
must be observed when handling it:
- Personnel appointed to carry out the installation and maintenance of the
switch SW3 must be free of static electricity. An anti-static wristband and/or
heel connected to earth should be worn.
- The room housing the SW3 must be free of elements that can generate
static electricity. If the floor of the room is covered with a carpet, make sure
that it is anti-static.
2. ZIV will not accept responsibility for any damage to the equipment caused by
the non-fulfilment of point 1.
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2 MECHANICAL AND ELECTRICAL CHARACTERISTICS
The diverse elements comprising the SW3 are supplied in a box suitable for DIN-rail
mounting, see FIGURE 5 and FIGURE 6.
FIGURE 5 General dimensions in mm of the SW3
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FIGURE 6 Detail of the DIN rail fastening element
Inserting
Removing
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The SW3 is powered with a nominal voltage of 48 VDC isolated (10.5-72 VDC) or allows DC
and AC supply-voltage operation (36-360 VDC, 80-265 VAC), through the connector shown in
FIGURE 7.
The female connector supplied with the equipment is suitable for rigid or flexible conductors
of up to 2.5 mm2.
An earth connection is available, see FIGURE 7. When using the multirange
model, this connection must be made before connecting any other power-supply
cable.
In the isolated 48 VDC model this connection is not compulsory but it is strongly
advisable.
FIGURE 7 Location of the power-supply connector and earth connection
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The SW3 may have 8 RJ-45 connectors or 4 RJ-45 connectors and 4 MT-RJ or, upon
request, LC or ST connectors. It also has two Gigabit Ethernet SFP bays.
FIGURE 8 Front view of the SW3
a) 8 RJ-45 connectors
b) 4 RJ-45 connectors and
4 MT-RJ connectors
Sections 2.1 to 2.6 give the electrical characteristics of the connectors and their use.
As shown in FIGURE 9, there is a maintenance connector, identified as SRV, at the bottom
of the SW3, for accessing the equipment through a console.
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FIGURE 9 Location of the SRV maintenance connector
Section 2.6 gives the electrical characteristics of the maintenance connector and its use.
The connector has a protective cap.
2.1 10/100BASE-TX (RJ-45) PORTS
The cable used to connect a 10/100Base-Tx port should be an unshielded twisted 4 pair
category five cable (UTP-5) with 8-pin RJ-45 connectors. The cable length should not be
more than 100 m.
The UTP-5 cable is made up of eight copper wires that form the four twisted pairs, covered
in different coloured insulating material. FIGURE 10 shows the colour of the wires that
make up each one of the pairs, according to ANSI/TIA/EIA-568-A standard.
FIGURE 11 shows the use of each one of the pins of the RJ-45 connector, as well as the
pair it belongs to according to ANSI/TIA/EIA-568-A standard, in the 10/100Base-Tx LAN
interface.
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FIGURE 10 Unshielded twisted pair category five cable (UTP-5) with RJ-45 connector according to
ANSI/TIA/EIA-568-A standard
FIGURE 11 Signals of the RJ-45 connector in the 10/100Base-Tx LAN interface
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Straight-through cables must be used, see FIGURE 12, where the 4 pairs correspond at
both ends of the cable.
FIGURE 12 Straight-through cable
2.2 100BASE-FX (MULTIMODE, MT-RJ) PORTS
In each 100Base-Fx port of this type, it should have an MT-RJ type connector. The cable
required to make the connection should be a fiber optic cable made up of two multimode
optical fibers, one to transmit data and the other to receive it. Each of the fibers should be
125 μm in diameter. The core and the cladding of the fiber are included in this diameter, as
can be seen in FIGURE 13. The core can be 50 μm or 62.5 μm in diameter. The
wavelength used should be 1300 nm (multimode). The cable length should not be more
than 2 km.
FIGURE 13 shows the most important input and output optical power characteristics
according to the type of multimode fiber used.
All the MT-RJ type connectors have a protective cap.
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FIGURE 13 Multimode optical fiber
2.3 100BASE-FX (MULTIMODE, ST) PORTS
In each 100Base-Fx port of this type, upon request, it should have a ST type connector.
The cable required to make the connection should be a fiber optic cable made up of two
multimode optical fibers, one to transmit data and the other to receive it. Each of the fibers
should be 125 μm in diameter. The core and the cladding of the fiber are included in this
diameter, as can be seen in FIGURE 13. The core can be 50 μm or 62.5 μm in diameter.
The wavelength used should be 1300 nm (multimode). The cable length should not be
more than 2 km.
FIGURE 13 shows the most important input and output optical power characteristics
according to the type of multimode fiber used.
All the ST type connectors have a protective cap.
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2.4 100BASE-FX (MULTIMODE, LC) PORTS
In each 100Base-Fx port of this type, upon request, it should have a LC type connector.
The cable required to make the connection should be a fiber optic cable made up of two
multimode optical fibers, one to transmit data and the other to receive it. Each of the fibers
should be 125 μm in diameter. The core and the cladding of the fiber are included in this
diameter, as can be seen in FIGURE 13. The core can be 50 μm or 62.5 μm in diameter.
The wavelength used should be 1300 nm (multimode). The cable length should not be
more than 2 km.
FIGURE 13 shows the most important input and output optical power characteristics
according to the type of multimode fiber used.
All the LC type connectors have a protective cap.
2.5 SFP PORTS
The bays available in the front plate of the equipment admit the installation of SFP (Small
Form Factor Pluggable) modules, which provide optic Gigabit Ethernet interfaces to the
switch; the characteristics of the fiber optic to be used, as well as the type of connector, will
depend on the SFP model used. See the available modules in section 1.4.3.
Bays have a protective cap.
Inserting procedure of an SFP module
The inserting procedure of an SFP module is the following:
1. Remove the protective packaging of the SFP module.
2. Check that the SFP module is the correct one for your network configuration.
3. Hold the module between your thumb and forefinger.
4. Insert the module into the corresponding SFP slot on the front panel of the equipment.
5. Remove the protective caps from the optical ends of the module.
6. Insert the fibers, in the optical ends of the module, keeping in mind the TX and RX data
transmission directions (see FIGURE 14).
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FIGURE 14 SFP modules
Removing procedure of an SFP module
The removing procedure of an SFP module is the following:
1. Disconnect the optical fiber from the connector of the SFP module.
2. Pull down the transceiver security lever.
3. Whilst the security lever down, remove the port from the module (if the SFP does not
slide out of the slot easily, make a slight oscillating motion from one side to another,
while firmly pulling the SFP outward).
FIGURE 15 Removing an SFP transceiver
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2.6 SRV PORT
The electrical characteristics of the maintenance connector and its use are indicated below.
The connector has a protective cap.
FIGURE 16 Location of the SRV maintenance connector
Pin
RS-232
2
RD (Out)
3
TD (In)
5
GND
SRV CONNECTOR (DCE mode)
Interface type
ITU-T V.24/V.28 (EIA RS-232)
Connector
DB9 female
Data
Asynchronous
Speed
115200 bit/s
Protocol
CLI (system console)
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3 LED SIGNALLING
The SW3 has two basic LEDs (SRV and ON) and several specific LEDs associated with the
Fast Ethernet ports and SFP modules.
FIGURE 17 shows a front view of the SW3, showing the detail of the different LEDs. They
are described below.
FIGURE 17 LEDs in the SW3
Basic LEDs
SRV LED
Amber. It flashes when there is emission or reception activity
by the SRV serial service interface.
On LED
Green. It is permanently lit when the equipment is powered
with an external power-supply voltage.
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LEDs associated with 10/100Base-Tx (RJ-45) ports
Speed/Link/Ac LED
Two-coloured. There is one LED per port. It stays on when the
link is established correctly and flashes in the case of emission
or reception activity in the interface. It lights up in green at
100 Mbit/s and in amber at 10 Mbit/s.
Duplex/Col. LED
Amber. There is one LED per port. It stays on when the
transmission is Full-duplex and goes off when the transmission
is Half-duplex. It flashes in the case of collision.
LEDs associated with 100Base-Fx (multimode, MT-RJ or, upon request, LC or ST)
ports
Speed/Link/Ac LED
Green. There is one LED per port. It stays on when the link is
established correctly and flashes in the case of emission or
reception activity in the interface.
Duplex/Col. LED
Amber. There is one LED per port. It does not mean anything
for this type of interface, and it remains off.
LEDs associated with SFP (ports 9 and 10) ports
Speed/Link/Ac LED
Green. There is one LED per SFP interface. It stays on when
the link is established correctly and flashes in the case of
emission or reception activity in the interface.
LED Duplex/Col.
Amber. There is one LED per SFP interface. It stays on when
the transmission is Full-duplex and goes off when the
transmission is Half-duplex. It flashes in the case of collision.
SW3
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4 ACCESS TO THE EQUIPMENT
The SW3 can be managed locally and remotely, through a console or through a built-in web
server. The server operates with the HTTP and/or HTTPS protocol.
4.1 CONSOLE
The equipment provides a user console application called CLI (see APPENDIX B ),
accessible through the SRV connector, a standard DB9 female connector in DCE mode
that operates at 115200 bit/s, with 8-bit characters, without parity and with a stop bit.
The system makes a distinction between upper and lower case characters.
Depending on the user identity, the user console provides full access to all the equipment
configuration data.
The console has a small help section about the available commands that is obtained by
running the help command.
The data are grouped virtually into directories and subdirectories. To browse through the
directories the cd (change directory) command is used. The value of an individual data
item or a group of data is obtained in response to a get command, indicating the specific
data item or giving the value of all the data located in the current directories and
subdirectories. To select a new value, it is necessary to execute the set command,
indicating the parameter to be changed and then the desired value; if the value to be
configured is not provided, the system will explicitly request it.
The data stored in table form, identified by the inclusion in the variable name of the symbol
[], have specific commands for adding and removing rows, which are add and remove
respectively. To query or select the value of the data in one row, the row identifier must be
included between square brackets in the get or set command.
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