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Protection against permanent
overvoltages
(RS422A-RS485)
without "lightning" option
with "lightning" option
Protection against lightning
(RS442A-RS485)
Ground connection mandatory.
Protection against transient
overvoltages(RS232D)
Protection against electrostatic
discharges as per IEC 801-2
(RS422A-RS485)
The upper limit of the standard is
greatly exceeded (level 4 voltage
15 KV maximum). In addition, the
standard only stipulates single
discharges applied to the outer
envelope of the product to be
tested and not directly on the
signal.
High voltage varistors, maximum default line
voltage in differential mode:
130 V D.C. permanently
300 V A.C. for 20 minutes
(direct connection with mains)
140 V A.C. for 20 minutes
Gas spark arrestor (option)
20,000 A 8/20 µsec exposure.
By peaks, breakdown voltage
±
25 V in
common mode, absorption capacity: 0.3 kW for
1 ms.
Line side with "lightning" option
(RS422A-RS485)
Single strike test:
> 21 KV
Pulse test at 20 Hz:
length 1 sec = > 21 KV
length 5 sec = > 21 KV
Line side without "lightning" option
Single strike test:
> 21 KV
Pulse test at 20 Hz:
length 1 sec = > 20 KV
System side (RS232D)
Single strike test:
> 21 KV
Pulse test at 20 Hz:
length 1 sec = > 21 KV
length 5 sec = > 21 KV
On the box: 25 KV
(single strike and pulse)
Содержание MI400 Series
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Страница 17: ...SECTION 2 MI400 Series MI400 RKMI400 MI400 24V ...
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Страница 29: ...SECTION 3 MI400 RTS Series MI400 RTS MI400 24V RTS RKMI400 RTS ...
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Страница 41: ...SECTION 4 MI400 400 Series MI400 400 ...
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Страница 47: ...SECTION 5 Assembly Examples With FIXING PLATE RDMI RKMI ...
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Страница 55: ...SECTION 6 Temperature Tests ...
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Страница 61: ...APPENDIX A Distribution Signals ...
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Страница 65: ...APPENDIX B Troubleshooting ...
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Страница 69: ...APPENDIX C Extract from EIA standard Cable length ...
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