Media module slots 4 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 8-19 Electrical data: Power supply
Device version
(power supply)
Redundant
power supply
unit
Redundant
power supply
possible
Power supply
12 VDC No Yes 12 VDC
(10.6 to 32 VDC) *
)
24 VDC No Yes Rated voltage 24 VDC
Voltage range 19.2 to 28.8 VDC
Permitted voltage
range incl. total rip‐
ple
18 to 32 VDC
*
)
The shipbuilding approvals apply only with a supply voltage of 24 VDC (18 ... 31.2 VDC).
Table 8-20 Electrical data: Current consumption and power loss
Device version
(power supply)
Current consumption Effective power loss
12 VDC 1.4 A 16.6 W
24 VDC 0.7 A 16.6 W
Table 8-21 Electrical data: Overcurrent protection
Device version
(power supply)
Overcurrent protection of the power supply
Non-replaceable fuse
12 VDC 3 A / 32 V
24 VDC 3 A / 32 V
Table 8-22 Electrical data: Signaling contact
Device version
(power supply)
Voltage via signaling con‐
tact
Switching capacity (resis‐
tive load)
Resistor between
F1-F2
12 VDC 12 VDC / 24 VDC Max. 100 mA < 8 Ω
24 VDC 24 VDC Max. 100 mA
Technical specifications
8.3 X-300M technical specifications
SCALANCE X-300
Operating Instructions, 11/2019, A5E01113043-24 163
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