Table 1682: IRIG-B (connector X8)
Description Value
IRIG time code format B004, B005
4
Isolation 500V 1 min
Modulation Unmodulated
Logic level 5 V TTL
Current consumption <1.0 mA
Power consumption <0.5 W
Table 1683: Lens sensor and optical fiber for arc protection
Description Value
Normal service temperature range of the lens –40...+100°C
Maximum service temperature range of the
lens, max 1 h
+140°C
Minimum permissible bending radius of the
connection fiber
100 mm
Arc sensor loop maximum attenuation 25dB
Table 1684: Degree of protection of the protection relay
Description Value
Front/connector side IP 20 (with ring-lug signal connectors IP 00 or
IP 10 depending on wiring)
Top and bottom IP 30
Rear IP 40
Table 1685: Degree of protection of the HMI
Description Value
Front IP 54
Other sides IP 20
Table 1686: Environmental conditions
Description Value
Operating temperature range –25...+55ºC (continuous)
Short-time service temperature range –40...+85ºC (<16 h)
5, 6
Relative humidity <93 %, non-condensing
Atmospheric pressure 86...106 kPa
Table continues on the next page
4
According to the 200-04 IRIG standard
5
Degradation in MTBF and HMI performance outside the temperature range of –25...+55 ºC.
6
For relays with an LC communication interface the maximum operating temperature is +70 ºC.
1MRS759142 F Technical data
REX640
Technical Manual
1947
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