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ETEP Installation Guide 71
RS-232 Serial Cable: ET0100A, ET1000A Models
The RS-232 serial cable on the ET0100A, and ET1000A is a null modem cable with DB-9 connectors
(female to male).
Figure 51 ETEP100x Null Modem Serial Cable
NOTE
The polarity of the ET10000A DC power cable is indicated via color coding with Yellow being + (plus),
Black being - (minus), and Green being (Ground)
Table 25 ETEP100x Null Modem Pin Connection
Pin Pin
2 Receive Data 3 Transmit Data
3 Transmit Data 2 Receive Data
5 Signal Ground 5 Signal Ground