E-Mon E50-6003200J*-N-KIT - Manual (Page 25)

GREEN CLASS NET METER
25 62-0416-01
6.9 Modem Wiring
Fig. 12. Modem Configuration.
6.9.1 Built-In Modem (RS-232 KEY RM)
The RS-232 key with built-in modem connects the entire RS-485 network of Green
Class Net meters to a telephone line.
Refer to Section 6.7 for RS-485 network connections.
On the back panel of the RS-232 key/modem, the left jack (RS232) is not used in most
cases since there is no local host computer.
The two jacks at the top center of the rear panel on the RS-232 key/modem are for
connecting the phone line. Connect either one of these two jacks to the telephone line.
IMPORTANT:
The telephone line should be dedicated exclusively to the automatic meter
reading system. Never connect to a telephone line used by other modems or
fax machines. If there are telephones connected to this phone line, the propri-
etor must be aware that all phones must be on “hook” in order for the modem
to work. A dedicated phone line is suggested for system reliability.
CHANNEL 2
~~
~~
CHANNEL 3
UP TO 4000
FEET TOTAL
RS-232
KEY RM
RS-232 SERIAL
PORT COM1
THROUGH COM3
MAXIMUM 15 FEET
UP TO 52
GREEN
CLASS NET
METERS PER
CHANNEL
M33424
UP TO 4000
FEET TOTAL
UP TO 52
GREEN
CLASS NET
METERS PER
CHANNEL
CHANNEL 1
AC ADAPTER
PC OR WINDOWS
COMPATIBLE
LOCAL
MODEM
~~
TELEPHONE
LINK