Media module
1)
Installation di‐
rection
Operating temperature
2)
Media module MM992-2SFP
with pluggable transceiver
SFP991-1LH+
SFP992-1+
SFP992-1LH
SFP992-1LH+
SFP992-1ELH
SFP991-1ELH200
Horizontal -40 °C to +50 ℃
Vertical -40 °C to +45 ℃
MM991-2P - 25 °C to + 40 ℃
1)
Only hardware product version 02 of the media modules is permitted.
The hardware product version is shown on the product. You can also read out this information from the
device with the WBM or the CLI.
2)
The permitted operating temperature depends on how the mounting device was installed. The
installation is horizontal if the device labeling is from left to right. With a vertical installation, the device
labeling is rotated through 90°.
8.7.2 Connectors and electrical data
Table 8-70 Connection for end devices or network components
Max. number 8 ports
Electrical 4 x RJ-45 jacks, MDI‑X pinning,
10/100/1000 Mbps (half/full duplex)
power supply for connected devices (PDs) using
Power over Ethernet (PoE) according to
IEEE 802.3af / 802.3at (type 1)
Media module slots 2 x modular
(2 ports per slot)
Transmitter output (optical) and receiver input The values correspond to those of the permitted
MM900 media modules and SFP transceivers.
Table 8-71 Electrical data: Power supply
Rated voltage Voltage range Permitted voltage range
including total ripple
24 VDC 19.2 VDC - 28.8 VDC 18.5 VDC - 30.2 VDC
Table 8-72 Electrical data: Power consumption and redundancy
Current consumption 2 A
Max. power consumption
(incl. PoE power supply of the connected PoE de‐
vices (PDs))
48 W
Power loss at 24 VDC 17 W
Technical specifications
8.7 X-300M PoE technical specifications
SCALANCE X-300
190 Operating Instructions, 11/2019, A5E01113043-24
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