Siemens X-400 Gigabit Media Module MM492-2LD 1000Base-LX, Slot of the MM492-2LD media module

Media Modules, Covers, Dummy Cover

4.1.4Gigabit Media Module MM492-2LD (1000Base-LX)

The MM492-2LD gigabit media module can be inserted as an option in slot 5.

Properties

The media module provides two ports for connecting the single mode FOC. Signal transmission uses a laser diode at a wavelength of 1310 nm. Both ports of the module can be configured as ring ports. The maximum cable length is 10 km when using SIMATIC NET fiber-optic cables.

Connector

SC duplex female connectors are used.

LED Display of the Gigabit Media Module

The LED displays of the module are the same as the LEDs of the basic device. With optical transmission, only a fixed transmission rate and full duplex mode are possible. The display in display modes B and C is analogous.

●In display mode A, the current connection status is displayed.

●In display mode B, the fixed transmission rate is displayed.

●In display mode C, the full duplex mode is always displayed.

●In display mode D, you can see whether or not the port is monitored.

F	IN1/IN5	RM	P1
L1	IN2/IN6	STBY	P2
L2	IN3/IN7	DM1
	IN4/IN8	DM2

P1 P1 P2 P2 P3 P3 P4 P4

P1

P2

P3

P4

2 3 4 5 6 7 8 9 10 11

Figure 4-5 Slot of the MM492-2LD media module

54	Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches
	C79000-G8976-C186-03