AMC8
panel
DIAG/
STATUS
Channel
status
Rack backplane
RLC16
AMC8
IOC8T
(Front card cage)
(Rear card cage)
(Rear card cage)
Relay card with 16 change-over contacts
EMC prot.
EMC protection
(Monitoring,
configuration)
Micro-
controller
(+RAM
+Flash)
DSP
(math
coprocessor)
Industry
Pack (IP)
Interface
VME
interface
9-pin
D-sub
connector
(RS-232)
OC Bus
Local
relays
Open
collector
drivers
Isolated
interface +
floating PS
Figure 5-1: Block diagram of AMC8, IOC8T, RLC16 and IRC4 cards
Abbreviations:
ADC = Analog-to-digital converter, AR = Alarm Reset, DAC = Digital-to-analog converter, DB = Danger Bypass, DSP = Digital signal processor, EMC = Electromagnetic compatibility,
IP = Industry pack, I/P = Input, JS = Jumper selectable, OC = Open Collector, O/P = Output, PS = Power supply, SPDT = Single-pole double-throw, SW = Software,
U/I conv. = Voltage-to-current converter, VME = VERSAbus module eurocard, +ve = Positive.
Meas. sensors
“I”: Current O/P
“H”: Signal I/P
(+ve)
“R”: 4 to 20 mA
signal I/P
“C”: Common I/P
“S”: Shield
RL1, RL2,
RL3 and RL4
DB
AR
DC OUT
4to20mA
(optionally
0to10V)
IP Bus
VME bus
Raw Bus
Tacho Bus
Channel 1
Channel 2
Channel 3
Channel 8
ADC
interface
Industry
Pack (IP)
interface
Raw line
selection
(JS)
Analog to
digital
converter
Sensor
type
switching
Switch
input
decoder
8-channel
DAC with
U/I conv.
IRC4
(Rear card cage)
Intelligent relay card with 4 DPDT or 8 SPDT
1
8
1
1
4
Relays
3 x screw
terminal strip
(J1, J2, J3)
16
6
8x
Relays
DSI
2 x screw
terminal strip
(J1, J2)
5
4x
2
8
2 x cage clamp
terminals
(J1, J2)
1 x screw
terminal strip
(J4)
1 x cage clamp
terminal
(J3)
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