SM 1221 DI 8x24 VDC

Yes

105 mA

4 mA; per channel

Yes

1.5 W

8

2

Yes

8

8

8

8

DC

24 V

5 V DC at 1 mA

15 V DC at 2.5 mA

1 mA

2.5 mA

4 mA

Yes; 0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms and 12.8 ms, selectable in groups of four

Yes

500 m

300 m

Yes

Yes

Yes

Yes

Yes

Yes

2

According to EN 50155 (routine test)

Yes

Yes; EMC for rail vehicles

Yes; EMC for signal and telecommunications systems

Yes; Railway applications - overvoltage category OV2; pollution degree PD2; rated surge voltage UNi = 0.5 kV; UNm = 24 V DC

Yes; Rail vehicles - see ambient conditions

Yes; Stationary electrical equipment - see ambient conditions

Yes; Signal and telecommunications systems - see ambient conditions; vibrations and shocks: Application point outside of tracks (1 m to 3 m away from track)

Yes; Rail vehicles - temperature class T1, horizontal mounting position, salt spray Class ST2

Yes; Rail vehicles - vibrations and shocks: Category 1 Class A/B

Yes; Rail vehicles - verification on request

0.3 m; five times, in product package

-25 °C; = Tmin; Startup @ -25 °C

60 °C; = Tmax; +70 °C for 10 minutes (T1 acc. to EN 50155) for horizontal mounting position

Tmin ... Tmax at 1080 hPa ... 795 hPa (-1000 m ... +2000 m)

100 %; RH incl. condensation/frost (no commissioning under condensation conditions)

Yes; Class 3B2 mold, fungus and dry rot spores (with the exception of fauna). The supplied connector covers must remain on the unused interfaces during operation!

Yes; Class 5B2 mold and fungal spores (excluding fauna). The supplied plug covers must remain in place over the unused interfaces during operation!

Yes; Class 3C4 (RH < 75%) incl. salt spray according to EN 60068-2-52 (degree of severity 3). The supplied connector covers must remain on the unused interfaces during operation!

Yes; Class 5C3 (RH < 75%) including salt spray according to EN 50155 (ST2). The supplied plug covers must remain in place over the unused interfaces during operation!

Yes; Class 3S4 incl. sand, dust. The supplied connector covers must remain on the unused interfaces during operation!

Yes; Class 5S3 including sand and dust. The supplied plug covers must remain in place over the unused interfaces during operation!

Yes

Yes

45 mm

100 mm

75 mm

170 g

For use in railway applications, also observe the product information "SIPLUS extreme RAIL" A5E37661960A Online Support article 109736776