User's Manual Part 6

E-5
Modem Connections
Communications to or from the remote ARM can be configured in either of two
ways:
• Internal modem (inside remote-ARM unit)
The internal modem must be a North American qualified modem for use in
telephone networks that use North American standard call progress tones. This
modem is inside the remote-ARM unit and requires an analog phone line
connection with an RJ-11 male connector. Connect the phone line to the port
marked “Line” in COM1, at the back of the remote ARM.
• External modem (via RS-232 COM1)
LGC Wireless recommends a US Robotics External modem qualified in the
country of use. To install this modem, you need a DB-25 to RJ-45 converter
cable and a cable with RJ-45 male connectors on both ends.
If you are in a country that does not use North American standard call progress
tones, you need to use an external modem with the ARM2000-RU unit.
If you use the US Robotics External modem, you need to prepare the modem with
initialization commands before you use it, as “Preparing the PC Modem” on page 7
describes. Take the following steps to install the modem:
1
Connect the phone line to the phone line marking at the rear of the modem.
2
If you choose to be notified by a phone ring of an incoming call, then connect
the phone to the phone marking at the rear of the modem via RJ-11 male
connectors on both ends.
3
Connect the DB-25 to RJ-45 converter at the rear of the modem.
4
Run the other end of the RJ-45 cable to the RS-232 COM1 port at the rear of
the remote ARM.
Alarm Cable Connections
To connect the LG
Cell
Main Hub(s) to the remote ARM, use the two-to-eight-port
connector cable. Make the following connections to monitor the following alarms:
Connector
Alarm Monitored
J1 Alarms 1,2 - Main Hub 1
J2 Alarms 3,4 - Main Hub 2
J3 Alarms 5,6 - Main Hub 3
J4 Alarms 7,8 - Main Hub 4
J5 Alarms 9,10 – Main Hub 5