March 2017
Intermediate to advanced
478 pages
12h 47m
English
| 1. Separation/segregation | A Max. Score | B Max. Score |
| Are all signal cables separated at all positions? | 15 | 52 |
| Are the programable channels on separate printed circuit boards? | 85 | 55 |
| OR are the programable channels in separate racks? | 90 | 60 |
| OR in separate rooms or buildings? | 95 | 65 |
| MAXIMUM SCORE | 110 | 117 |
| 2. Diversity | A Max. Score | B Max. Score |
| Do the channels employ diverse technologies; 1 electronic + 1 mechanical/pneumatic? | 100 | 25 |
| OR 1 electronic or CPU + 1 relay based? | 90 | 25 |
| OR 1 CPU + 1 electronic hardwired? | 70 | 25 |
| OR do identical ... |
Read now
Unlock full access