Figure 2-2: Electronic keying circuitry
Micro-switches
(Example: 1011 for slot 11)
Example: Code = 1011 (for slot 11)
Address
decoder
Slot number
(address)
assignation
register
LSB = Least-significant bit
MSB = Most-significant bit
Card in the front of the rack
(for example, MPC4 or AMC8)
ABE04x or ABE056
Card in the rear of the rack
(for example, IOC4T, IOC8T or IRC4)