Siemens ST PCS 7 manual Industrial Ethernet glass multimode FOC see page 9/26 or

© Siemens AG 2007

Communication

Industrial Ethernet

SCALANCE X Industrial Ethernet switches

SCALANCE X408-2
Slot			optionally Gigabit or Fast Ethernet
	2	3	4	5	6	7	8
number

Gigabit			or			Fast
						Ethernet
MM492-2		MM492-2LD		MM491-2			MM491-2LD
	or				or

Example 1 2 3 4 5		6 7 8
	MM492-2LD	MM491-2

e.g. for use in optical gigabit ring with single mode for a distance of up to

10 km, connecting two separate optical nodes and up to four electrical nodes.

Example 2 2 3 4 5 6 7 8

2-MM492

e.g. for use in optical gigabit ring, connecting up to six electrical nodes or

for redundant connection of optical gigabit rings via electrical gigabit segments, connecting up to four electrical nodes. 10201

G_IK10_XX_

•SCALANCE X308-2 with

-2 optical Gigabit Ethernet SC ports for glass multimode FOC (1000BaseSX)

-1 electrical Gigabit Ethernet RJ45 port (1000BaseTX)

-7 electrical FastEthernet RJ45 ports (10/100BaseTX)

•SCALANCE X308-2LD with

-2 optical Gigabit Ethernet SC ports for glass singlemode FOC (1000BaseFX)

-1 electrical Gigabit Ethernet RJ45 port (1000BaseTX)

-7 electrical FastEthernet RJ45 ports (10/100BaseTX)

Features of the X-300 switches

• Rugged metal enclosure of S7-300 format, IP30 protection, for

installation in control cabinets

• Mounting possibilities: DIN rail, SIMATIC S7-300 rail, direct

wall mounting

• Redundant 24 V DC supply

• Cable length between two devices with electrical transmission

per TP ports 1000BaseTX with RJ45 sockets:

- Depending on the cable type, up to 90 m with IE FC cable,

IE FC RJ45 Modular Outlet and patch cable, up to 10 m with

TP-Cord (see page 9/23)

• Cable length between two devices with optical transmission:

Possible applications of media modules with SCALANCE X-408-2

SCALANCE X-300

9

- Up to 750 m via 1000BaseSX ports (1000 Mbit/s) and

Industrial Ethernet glass multimode FOC (see page 9/26 or

in Catalog IK PI)

- Up to 10 km via 1000BaseFX ports (1000 Mbit/s) and Indus-

trial Ethernet glass singlemode FOC (see Section "Passive

network components" in Catalog IK PI)

• Cable length between two devices with electrical transmission

per TP ports 10/100BaseTX with RJ45 sockets:

- Depending on the cable type, up to 100 m with IE FC cable

and IE FC RJ45 Plugs (see page 9/23 or in Catalog IK PI)

- Up to 10 m with TP-Cord (see Section "Passive network com-

ponents" in Catalog IK PI)

• Permissible operating temperature for all device types: 0 to

+60°C

With the X310, X308-2 and X308-2LD switches from the SCALANCE X-300 range, it is possible to implement line and star topologies as well as low-cost electrical or optical ring topolo- gies with transmission rates up to 1000 Mbit/s. All switches can be used in the ring as redundancy managers. They additionally support standby redundancy for bus configurations with two re- dundant rings. As a redundancy manager, an X-300 switch mon- itors the SCALANCE X switches connected via its ring ports, and switches without interruption to the substitute link on failure of a transmission link or a switch in the ring. Each X-300 switch has 3 Gigabit Ethernet ports and 7 FastEthernet ports which are de- signed as follows depending on the device type:

•SCALANCE X310 with

-3 electrical Gigabit Ethernet RJ45 ports (1000BaseTX)

-7 electrical FastEthernet RJ45 ports (10/100BaseTX)

9/10

Siemens ST PCS 7 · November 2007