ABB aquamaster - Remote Computer Connection

Electronic Commercial Water Meter
AquaMaster™ 3 Electrical Installation
IM/AM Issue 13 29
3.3.7 Remote Computer Connection
AquaMaster
Signal (DTE)
Modem (DCE) Plug * Terminal/PC (DTE) Socket
Name DB9 DB25 Name DB9 DB25
RXD RXD 2 3 TXD 3 2
TXD TXD 3 2 RXD 2 3
RTS RTS 7 4 CTS 8 5
CTS CTS 8 5 RTS 7 4
RI RI 9 22 – NC NC
GND GND 5 7 GND 5 7
* Also mates with PDA PC-Link cables
Table 3.2 RS232 Connections
Fig. 3.22 RS232 Connections
Current Design
RTS
RXD
TXD
GND
RI
CTS
Early Design*
(see Note below)
RTS
RXD
TXD
GND
RI
CTS
AquaMaster Transmitter
Connector Block Layout
Modem
Radio Modem (Radio Pad),
Computer or similar