User`s manual

70
Pin No. Signal Functions Signal Input/Output
CU-5001 External device
2SDSend data →
3RDReceive data ←
4RSRequest to send →
5CSReady to send ←
7SGSignal ground —
20 ER Data terminal equipment ready →
Pins 1 (FG), 6 (DR), and 8 (CD) are not connected.
■ CU-5002
3.1 RS-232C Interface Specifications
3.1.1 For CU-5000
[ 1 ] Interface Connector and Pin Assignment
The CU-5000 has an RS-232C interface port (Dsub-25S).
25
13
14
1
RS-232C interface port (Dsub-25S) on the CU-5000
■ CU-5001
Pin No. Signal Functions Signal Input/Output
CU-5002 External device
1FGFrame ground —
2SDSend data →
3RDReceive data ←
4RSRequest to send —
5CSReady to send —
6DRData set ready —
7SGSignal ground —
8CDCarrier detect —
20 ER Data terminal equipment ready —
The input/output voltage threshold for the logical valued signal is listed below.
Logical Value Input Voltage Threshold Output Voltage Threshold
0 3V min. 5V min.
1 -3V max. -5V max.