Campbell SAT ARGOS Bedienungsanleitung Seite 88

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Seitenansicht 87
ZENO
®
-3200 USER MANUAL
Coastal Environmental Systems (206) 682-6048
Page 80
The ZENO
®
-3200 does not actively assert/de-assert RTS. Instead, the cables are specified to make RTS
follow CTS at all times. If your modem can be set to ignore RTS, you can use a standard straight-through
cable to connect the ZENO
®
-3200 to a modem.
94
6.4. TELEPHONE MODEMS
The ZENO
®
-3200 can connect to most standard, off-the-shelf telephone modems. Telephone modem
communications can operate in two modes:
You can dial in to the ZENO
®
-3200 to obtain logged data or to carry out configuration changes remotely.
You can configure the ZENO
®
-3200 to automatically dial out when an alarm occurs. It will dial up to
four different telephone numbers, transmit the alarm data message, and then hang up the modem.
For low-power consumption, the ZENO
®
-3200 can be configured to control telephone modem power. In
this case, the ZENO
®
-3200 turns modem power on before dialing out and monitors the ring-detect line to
turn on modem power to answer an incoming call. The ZENO
®
-3200 then turns the modem off when
dial-out is complete or when the caller hangs up. The low-power modems are typically customized
modems where the ring detect line is diverted from the modem itself and made available to the ZENO
®
-
3200 front panel.
95
This section is divided into three parts:
1. Configuring the ZENO
®
-3200 for both dial-in and dial-out communications and for a low-power
(power controlled) modem
2. Configuring the modem to be connected to the ZENO
®
-3200
3. Handshaking between the ZENO
®
-3200 and the modem
96
6.4.1. ZENO
®
-3200 Modem Configuration
You can configure the ZENO
®
-3200 either by connecting the ZENO
®
-3200's COM3 port directly to your
computer, or over an existing telephone modem link.
The communications cable used for a ZENO
®
-3200-to-telephone modem link
is different from the one used for a direct ZENO
®
-3200-to-computer link.
97
Once you have connected, break into the User Menu using the U{ENTER} command one or (over a
communication link) a few times. You will see the following menu.
94
Refer to Section 6.4.3.
95
The low-power modem is incapable of answering calls on its own since the ring-detect line is rerouted from the
modem to the ZENO
®
-3200.
96
Unless you have trouble with your modem communications, you do not need to understand the handshaking
issues in detail.
97
Please contact Coastal Environmental Systems if you do not have the correct cables.
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