Making the Smart Grid Real
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ZIV
Antonio Machado,78-80
08840 Viladecans, Barcelona-Spain
Tel.: +34 933 490 700
Fax: +34 933 492 258
Mail to: ziv@zivautomation.com
www.zivautomation.com
GIGABIT/FAST ETHERNET SWITCH/ROUTER
TYPE SW3-L3
USER GUIDE
V06 - February 2019
M0SW3M1902Iv07
SW3-L3
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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 7
1.3 EQUIPMENT COMPOSITION 11
1.4 TECHNICAL SPECIFICATIONS 12
1.4.1 SW3-L3 characteristics 12
1.4.2 Unit interfaces 13
1.4.3 Accessories 15
1.4.4 Equipment management 16
1.4.5 Additional services 16
1.4.6 Certifications 16
1.4.7 Mechanical characteristics 16
1.4.8 Operating conditions 17
1.5 WARNINGS 19
1.5.1 Warnings before installing 19
1.5.2 Equipment safety considerations 20
2 MECHANICAL AND ELECTRICAL CHARACTERISTICS 21
2.1 10/100BASE-TX (RJ-45) PORTS 26
2.2 100BASE-FX (MULTIMODE, MT-RJ) PORTS 28
2.3 100BASE-FX (MULTIMODE, ST or SC) PORTS 28
2.4 100BASE-FX (MULTIMODE, LC) PORTS 29
2.5 100BASE-LX (SINGLEMODE, LC) PORTS 29
2.6 SFP PORTS 30
2.7 SRV PORT 32
2.8 I/O CONNECTOR 33
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Page
3 LED SIGNALLING 34
3.1 SW3-L3 WITH FRONT PORTS WITHOUT PTP 34
3.2 SW3-L3 WITH REAR PORTS WITHOUT PTP 38
3.3 SW3-L3 WITH FRONT PTP PORTS 41
3.4 SW3-L3 WITH REAR PTP PORTS 45
4 ACCESS TO THE EQUIPMENT 47
4.1 CONSOLE 47
4.2 HTTP SERVER 48
5 CONFIGURATION AND MANAGEMENT 50
5.1 GENERAL PARAMETERS 51
5.1.1 Equipment identification 52
5.1.2 Access control 52
5.1.3 Others 53
5.1.4 Syslog 53
5.2 ADMINISTRATION 54
5.3 LAN CONFIGURATION 56
5.3.1 PORTS 56
5.3.2 VLAN 60
5.4 BANDWIDTH LIMIT CONFIGURATION 64
5.5 PORTS MONITORING CONFIGURATION 66
5.6 LLDP CONFIGURATION 69
5.7 QoS CONFIGURATION 71
5.8 ROUTING CONFIGURATION 75
5.8.1 Static routes 75
5.8.2 DNS servers 77
5.8.3 RIP Protocol 78
5.8.4 OSPF Protocol 80
5.8.5 BGP Protocol 84
5.9 FILTERING CONFIGURATION 92
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Page
5.10 DHCP SERVER CONFIGURATION 94
5.10.1 DHCP Server Profiles 94
5.10.2 DHCP Server Table 95
5.11 VRRP CONFIGURATION 96
5.12 SNMP CONFIGURATION 99
5.13 STP PROTOCOL CONFIGURATION 102
5.14 NTP/SNTP CONFIGURATION 106
5.15 PTP CONFIGURATION 108
5.16 MULTICAST CONFIGURATION 110
5.16.1 Static 113
5.16.2 GMRP 114
5.16.3 IGMP 115
5.17 ACCESS CONFIGURATION 117
5.18 SECURITY CONFIGURATION 119
5.18.1 802.1x 121
5.18.2 MAC list 122
5.19 OTHERS CONFIGURATION 123
5.20 REBOOT 124
5.21 CODE REFLASH 124
5.21.1 Backup 125
5.22 CONFIGURATION FILE 125
5.22.1 Upload (from the PC to the equipment) 126
5.22.2 Download (from the equipment to the PC) 126
5.23 EVENT FILES 127
6 STATISTICS 128
APPENDIX A
BIBLIOGRAPHY AND ABBREVIATIONS 136
APPENDIX B
DATA STRUCTURE IN CLI 141
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1 INTRODUCTION
1.1 GENERAL
The SW3-L3 is a Gigabit/Fast Ethernet switch/router specially designed to perform
switching functions (L2) and IPv4 routing functions (L3).
Level 2 capabilities enable deployment of big scale LANs when the main requirements are:
Port density,
switching performance, and
logical complexity.
Level 3 capabilities offer:
Routing functionality between two or more configured VLANs, with each VLAN being
made up of a set of local ports (Ethernet and Gigabit Ethernet).
The routing process is performed in hardware, that is, at wire speed for unicast traffic.
The SW3-L3 supports the SNMPv1, SNMPv2c and SNMPv3 management protocols, the
RIPv1, RIPv2, OSPFv2 and BGPv4 routing protocols, the VRRP redundancy protocol, as
well as other protocols and services such as LLDP, GARP/GMRP, IGMP, DHCP,
NTP/SNTP, TACACS+ and RADIUS.
As a level 2 switch, SW3-L3 brings the necessary capabilities to implement the automation
of electrical substations according to the IEC 61850 standard.
The SW3-L3 supports standard IEEE 1588v2 clock synchronization (Precision Time
Protocol), in Transparent Clock (TC) P2P mode.
The SW3-L3 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-L3 stores an internal backup copy of the application software so, in case of some
incidence, the operation of the equipment is guaranteed by running the backup software.
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1.2 MAIN CHARACTERISTICS
Some of the SW3-L3 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-L3, 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-L3 may adapt to different network architectures, such as: star, double star, ring,
double ring, and linked rings.
FIGURE 1 Traffic separation
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FIGURE 2 Star topology
FIGURE 3 Rings
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❖ 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.
❖ Q-in-Q operation.
The SW3-L3 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
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❖ Advanced RSTP implementation.
The SW3-L3 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-L3 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-L3 has
Quality of Service (QoS), which identifies critical services, guaranteeing that all traffic
receives the appropriate priority.
On the other hand, the SW3-L3 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-L3 selects maximum volume limits for
different combinations of broadcast, multicast, and flooding messages, in each one of
their ports.
❖ Multicast traffic.
The SW3-L3 has two protocols for adapting the multicast traffic to the desired interfaces.
The protocols are:
o GARP/GMRP (IEEE 802.1D 2004). The GMRP clients request to the SW3-L3
the selective transmission of the multicast traffic desired by each of them.
o IGMP. The SW3-L3 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-L3 also selects the multicast flows in an explicit and manual way (static
configuration).
❖ Port mirroring.
The SW3-L3 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.
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❖ IP routing.
The SW3-L3 is an IPv4 router for unicast traffic. The data for the routing function may
have two sources; static data of a permanent nature (configured by the user) and
dynamic data, obtained by the equipment itself through executing the standard routing
protocols: RIP, OSPF and BGP. All these protocols can be active simultaneously.
In addition to routing function, the equipment has the VRRP redundancy protocol, so that
it may be part of one or various virtual routers.
❖ Traffic filtering.
All traffic processed by the SW3-L3 takes into account the filtering rules that the user
might configure so that routing operations are subject to restrictions as: input interface,
output interface (from the routing table), IP address of origin network, IP address of
destination network or the service (tcp, udp), the latter supports the use of a range of
ports, both destination and origin.
Filtering rules admit conditions in many fields.
1.3 EQUIPMENT COMPOSITION
The SW3-L3 is provided in a 19" shelf that is 1 standard unit (s.u.) in height, prepared for
rack mounting.
It includes a serial maintenance interface (DCE mode) and an I/O connector (see section
2.8), and can include 4 front or rear Gigabit Ethernet SFP bays, and up to front or rear 32
ports without PTP (Precision Time Protocol) or, instead of the previous ones, up to 24 IEEE
1588 (Precision Time Protocol) ports.
The SW3-L3 has a 4-block mechanical structure for the installation of the ports. See in
section 1.4.2, Equipment interfaces, the types of blocks available and their requirements.
The main power supply may be isolated DC or multirange (VDC and VAC). The SW3-L3 may
include an isolated DC or multirange (VDC and VAC) redundant power-supply option and, in
the front port model, a PoE power-supply option for the direct connection of IP devices
(IEEE 802.3 af) in eight electrical ports (1 to 4 of block 1 and 1 to 4 of block 2).
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1.4 TECHNICAL SPECIFICATIONS
1.4.1 SW3-L3 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-L3 can use the priority fields included in the IEEE 802.1p tag, such 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.
➢ Compatible with standard IEEE 1588v2 clock synchronization (Precision Time Protocol)
in Transparent Clock (TC) P2P mode.
➢ Routing capabilities for unicast traffic.
•
RIPv1, RIPv2, OSPFv2 and BGPv4 routing protocols.
➢ Traffic filtering (Access Control List) and IPv4 traffic filtering.
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1.4.2 Unit interfaces
➢ 1 service console (DCE mode).
➢ 4 Gigabit Ethernet SFP bays (see section 1.4.3, Accessories), front or rear.
➢ One I/O connector with one digital input and output that can be managed via SNMP.
The digital output can be configured as an alarm.
➢ Front or rear ports.
➢ The ports are grouped into two different classes that cannot be mixed together: up to 32
ports without PTP (Precision Time Protocol) or up to 24 ports with PTP.
➢ The chassis has a mechanical structure
of up to four blocks
for the installation of the
ports.
For the ports without PTP, the block types to be combined are the following:
•
Block of 8 ports type
10/100Base-Tx
with
RJ-45
connector.
•
Block of 8 ports type
10/100Base-Tx
with
RJ-45
connector and
PoE
in the first four
ports (always front).
•
Block of 4 or 8 ports type
100Base-Fx multimode
(1300 nm) with
MT-RJ
connector.
•
Block of 2 or 4 ports type
100Base-Fx multimode
(1300 nm) with ST connector.
•
Block of 2 or 4 ports type
100Base-Fx multimode
(1300 nm) with SC connector.
•
Block of 4 or 8 ports type
100Base-Fx multimode
(1300 nm) with LC connector.
•
Block of 4 or 8 ports type
100Base-Lx singlemode
(1300 nm) with
LC SM
connector.
The blocks must be installed consecutively, from left to right, without leaving empty
slots.
If there are electrical ports, they must always be in the first position.
If only fiber optic ports are used, a maximum of 24 ports are supported.
No port blocks with 4 connectors MT-RJ, 2 connectors ST, 2 connectors SC or
4 connectors LC (LC SM) should be installed in the first position.
The PoE power-supply option for the direct connection of IP devices (IEEE 802.3 af)
is available in electrical and front ports. A maximum of 8 PoE ports is supported,
distributed in two groups of four (1 to 4 of block 1 and 1 to 4 of block 2).
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For the ports with PTP, the block types to be combined are the following:
•
Block of 6 ports type
10/100Base-Tx
with
RJ-45
connector.
•
Block of 4 ports type
10/100Base-Tx
with
RJ-45
connector and 2 Gigabit Ethernet
SFP
bays.
•
Block of 4 ports type
10/100Base-Tx
with
RJ-45
connector and 2 ports type
100Base-Fx multimode
(1300 nm) with
MT-RJ
connector.
•
Block of 4 ports type
10/100Base-Tx
with
RJ-45
connector and 2 ports type
100Base-Fx multimode
(1300 nm) with
LC
connector.
•
Block of 4 ports type
10/100Base-Tx
with
RJ-45
connector and 2 ports type
100Base-Lx singlemode
(1300 nm) with
LC SM
connector.
•
Block of 4 ports type
10/100Base-Tx
with
RJ-45
connector and 2 ports type
100Base-Fx multimode
(1300 nm) with
ST
connector.
•
Block of 4 ports type
10/100Base-Tx
with
RJ-45
connector and 2 ports type
100Base-Fx multimode
(1300 nm) with
SC
connector.
The blocks must be installed consecutively, from left to right, without leaving empty
slots.
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1.4.3 Accessories
➢ Gigabit/Fast Ethernet SFP modules.
The following list corresponds to verified modules, which comply with the temperature
criteria.
•
SFP 1000BaseT (4CZ07980001)
type of connector: RJ-45
•
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.
➢ DHCP server and client.
➢ DHCP Relay.
➢ VRRP.
➢ 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: shelf that is 19" wide and 1 standard unit (s.u.) high.
➢ Dimensions: Height: 44 mm; Width: 440 mm; Depth: 287 mm.
➢ Weight: 3.4 kg
➢ IP protection level: IP 2xB
➢ Material: Grey (RAL 7024) zinc-plating iron.
For more mechanical details, see chapter 2, Mechanical and electrical characteristics.
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1.4.8 Operating conditions
➢ Power supply: 36-72 Vdc or multirange (80-360 Vdc, 80-260 Vac).
Redundant power-supply option and, in front port model,
PoE
power-supply option
in eight electrical ports (1 to 4 of block 1
and 1 to 4 of block 2).
DC operation is protected by diode against polarity inversion.
Multirange model is also protected against polarity inversion.
➢ Consumption: Maximum consumption at 48 Vdc: 40 W.
Maximum PoE consumption to be distributed for every group
of four electrical ports: 12 W.
➢ Temperature range: From -25ºC to +70ºC
➢ 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.
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•
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.
➢ Other standards that are also met.
•
Environmental and testing requirements for communications networking devices in
electric power substations:
in accordance with IEEE 1613 standard.
•
Communication networks and systems for power utility automation:
in accordance with IEC 61850-3 standard.
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1.5 WARNINGS
1.5.1 Warnings before installing
1. The installation of the SW3-L3 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-L3 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-L3.
- The environment in which it is to operate should be suitable for the
SW3-L3, 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, 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-L3 must be free of static electricity. An anti-static wristband
and/or heel connected to earth should be worn.
- The room housing the SW3-L3 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 Gigabit/Fast Ethernet switch/router type SW3-L3 are
supplied in a shelf that is 19" wide and 1 standard unit (s.u.) high, which is prepared for
rack mounting.
FIGURE 5 shows the general dimensions in mm of the SW3-L3, as well as the position of
the fastening holes.
FIGURE 5 General dimensions in mm of the SW3-L3
The SW3-L3 is powered with a nominal voltage of 48 VDC (isolated) or allows DC and AC
supply-voltage operation (80-360 Vdc, 80-260 Vac), through the connector shown in
FIGURE 6.
The female connector supplied with the equipment is suitable for rigid or flexible conductors
of up to 2.5 mm2.
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FIGURE 6 Location of the main power-supply connector (PS 1) and secondary power-supply
connector (PS 2)
a) Rear view of shelf with front ports
b) Rear view of shelf with rear ports
In the SW3-L3 front port model, eight 10/100Base-Tx ports (1 to 4 of block 1 and 1 to 4 of
block 2), admit the PoE power-supply option, which is performed through the connector
shown in FIGURE 7. The PoE interfaces provide power supply to the client equipment
using their own Ethernet cable, for example, IP telephones (IEEE 802.3 af).
The SW3-L3 may include two power-supply sources: main (PS 1) and alternative (PS 2)
and, in front port model, the PoE power supply (PoE PS).
FIGURE 7 Location of the PoE power-supply connector (PoE PS) in shelf with front ports
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An earth connection is available (see FIGURE 8). 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 8 Location of the earth connection
The SW3-L3 may have 4 Gigabit Ethernet SFP bays and up to 32 ports without PTP
(Precision Time Protocol) or up to 24 IEEE 1588 (Precision Time Protocol) ports.
The SW3-L3 has a 4-block mechanical structure for the installation of the ports. See in
section 1.4.2, Equipment interfaces, the types of blocks available and their requirements.
Sections 2.1 to 2.8 give the electrical characteristics of the connectors and their use.
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FIGURE 9 shows an example of a front view of the SW3-L3 with 4 Gigabit Ethernet SFP
bays and with 26 front ports without PTP, the first 16 in 10/100Base-Tx (RJ-45)
configuration, the following 8 in 100Base-Fx (multimode, MT-RJ) configuration and the last
two in 100Base-Fx (multimode, ST) configuration.
FIGURE 9 Front view of the SW3-L3 shelf with 26 front ports without PTP and 4 SFP bays
FIGURE 10 shows an example of a rear view of the SW3-L3 with 4 Gigabit Ethernet SFP
bays and with 24 rear ports without PTP, the first 16 in 100Base-Fx (multimode, MT-RJ)
configuration and the last 8 in 100Base-Fx (multimode, ST) configuration.
FIGURE 10 Rear view of the SW3-L3 shelf with 24 rear ports without PTP and 4 SFP bays
FIGURE 11 shows an example of a front view of the SW3-L3 with 4 Gigabit Ethernet SFP
bays and 24 front IEEE 1588 (Precision Time Protocol) ports, the first 12 in 10/100Base-Tx
(RJ-45) configuration, and the last 12 in 10/100Base-Tx (RJ-45) configuration and Gigabit
Ethernet SFP.
FIGURE 11 Front view of the SW3-L3 shelf with 24 IEEE 1588 (Precision Time Protocol) ports and 4
SFP bays
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As shown in FIGURE 12, there is a maintenance connector, identified as SRV, at the right
of the SW3-L3, for accessing the equipment through a console, and an I/O connector.
FIGURE 12 Location of the SRV maintenance connector and the I/O connector
a) Front view of shelf with front ports
b) Rear view of shelf with rear ports
Section 2.8 gives the electrical characteristics of the I/O connector.
Section 2.7, SRV port, gives the electrical characteristics of the maintenance connector and
its use. The connector has a protective cap.
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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 13 shows the colour of the wires that
make up each one of the pairs, according to ANSI/TIA/EIA-568-A standard.
FIGURE 13 Unshielded twisted pair category five cable (UTP-5) with RJ-45 connector according to
ANSI/TIA/EIA-568-A standard
FIGURE 14 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 14 Signals of the RJ-45 connector in the 10/100Base-Tx LAN interface
In the eight 10/100Base-Tx ports that admit the PoE power-supply option (1 to 4 of
block 1 and 1 to 4 of block 2), pair 1 is used for the VDCPoE+ connection, and pair 4 is
used for the VDCPoE- connection.
Straight-through cables must be used, see FIGURE 15, where the 4 pairs correspond at
both ends of the cable.
FIGURE 15 Straight-through cable
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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 16. 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 16 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.
FIGURE 16 Multimode optical fiber
2.3 100BASE-FX (MULTIMODE, ST or SC) PORTS
In each 100Base-Fx port of this type, it should have a ST or SC 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 16. 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.
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FIGURE 16 shows the most important input and output optical power characteristics
according to the type of multimode fiber used.
All the ST or SC type connectors have a protective cap.
2.4 100BASE-FX (MULTIMODE, LC) PORTS
In each 100Base-Fx port of this type, 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 16. 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 16 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 100BASE-LX (SINGLEMODE, LC) PORTS
In each 100Base-Lx port of this type, it should have a LC singlemode type connector. The
cable required to make the connection should be a fiber optic cable made up of two
singlemode 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. The core is 9 μm in diameter. The wavelength used should be 1300 nm
(singlemode). The cable length should not be more than 10 km.
The most important input and output optical power characteristics are:
Input optical power
Output optical power
Minimum
Maximum
Minimum
Maximum
-25 dBm
-8 dBm
-15 dBm
-8 dBm
All the LC singlemode type connectors have a protective cap.
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2.6 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, Accessories.
Bays have a protective cap.
FIGURE 17 SFP modules
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 17).
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