Table 8-27 Installation options
Device version
(power supply)
Installation options
2 x 24 VDC
● 19" rack
1)
● Desktop operation with adhesive feet
1 x 100 to 240 VAC 19" rack
1)
1)
Note: If mechanical load is high, the device should be secured at four points. You will find more
detailed information in the section "Mechanical load in operation".
Note
No desktop operation for devices with 100 to 240 VAC power supply
Desktop operation is permitted only for the 24 VDC variants of the rack devices (R). The
adhesive feet ship with the 24 VDC variants. In this case, the permitted ambient temperature
is -40 °C to +50 °C.
Table 8-28 Permitted ambient conditions
Storage/transport temperature -40 °C to +85 ℃
Max. relative humidity in operation at 25 °C <= 95% (no condensation)
Max. ambient temperature at operating altitude 2000 m or above:
-5 °C of the max. operating temperature
1)
3000 m or above:
-10 °C of the max. operating temperature
1)
1)
See table: "Operating temperature depending on the media modules used"
Table 8-29 Operating temperature depending on the media modules used
Media module
1)
Installation di‐
rection
Operating temperature
2)
MM992-2CUC
MM992-2CUC (C)
MM992-2CU
MM992-2M12 (C)
MM992-2VD
MM991-2
MM991-2FM
MM991-2LD
MM991-2 (SC)
MM991-2LD (SC)
MM992-2
MM992-2 (C)
MM992-2LD
Horizontal -40 °C to +70 ℃
Vertical -40 °C to +50 ℃
Technical specifications
8.4 XR-300M technical specifications
SCALANCE X-300
Operating Instructions, 11/2019, A5E01113043-24 167
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