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1.7 Ordering codes and accessories
Ordering codes
RD8900 – – –
1 2 3 4 – 5 6 7 – 8 9 10
1 Power
4: 90-250 VAC, 47-63 Hz
6: 11-18 VDC
7: 18-36 VDC
9: Special order
2 Analog Input Card
0: none
1: 1 channel
2: 2 channel
3: 3 channel
4: 4 channel
5: 5 channel
6: 6 channel
A: 9 channel
B: 12 channel
C: 15 channel
D: 18 channel
3 Digital Input Card
0: none
1: 6 channel
2: 12 channel
4 Digital Output Card
0: none
1: 6 relay
2: 12 relay
5 Communication
0: standard Ethernet interface
1: RS-232/422/485 ( three in one ) + Ethernet interface
9: Special order
6 PC software
1: Free basic software Observer I for non-communication application
2: Extensive software Observer II for communication of RS-232/422/485 or Ethernet
7 Firmware
0: Basic function
1: with Mathematics, Counter & Totalizer