CONEL SPECTRE v3 ERT — описание интерфейса SWITCH для маршрутизаторов v3 [28/39]

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5. ROUTER DESIGN

5.9 Interfaces description

Besides the basic version of SPECTRE v3 ERT router there are available versions with

one of the following interfaces:

• SWITCH interface

5.9.1 SWITCH interface

Three LAN ports of SWITCH interface for v3 routers (RJ45 connectors for connecting

Ethernet devices) act as a typical switch device. This means that the router reads Ethernet

frames (data packets on an Ethernet link) from any port on SWITCH interface and transmits

them on other ports of the SWITCH interface. Each port can transmit frames independently

on the other ports. State indication is provided on every connector. Power supply is provided

internally. Router in this version complies with the standards and temperature ranges declared

in Chap. 7.1 except for the lower maximum operating temperature which is +70

◦

Figure 24: Version with SWITCH board

State indication of the interface:

Description of indication

Green LED On

Of f

Selected 100 Mbit/s

Selected 10 Mbit/s

Yellow LED On

Blinking

Of f

The network cable is connected

Data transmission

The network cable is not connected

Table 18: State indication of the SWITCH interface

Technical speciﬁcation of Ethernet IEEE 802.3:

Ethernet interface, IEEE 802.3 standard

Maximum data rate 100 Mbps

Max. total cable length (300 Bd, 200 nF/km) 100 m

Table 19: SWITCH interface parameters