Elgas DATCOM, Руководство по эксплуатации

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10
Communication with the Device
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this value, the device displays error number 10 (see Section 6.8.3, Table 13).
Note on the SIM Card
The modem requires a SIM card in order it can be operated. The SIM card is not supplied with the
device. The internal modem allows data transfer both in dial-up (CSD) mode - i.e. data transfer to
GSM, and in GPRS or LTE mode. The SIM card for the given data transfer mode must be
provided to the user with his mobile operator.
For dial-up connection (CSD), the mobile operator must be required to activate the data
transfer on the SIM card. Data transfer activation is, of course, required even for GPRS
data transfer.
Basic information about the modem connection and signal strength is shown on the device
display with icons (see Table 11). In addition, some additional information on the modem current
status can be displayed. This screen can be accessed from the device keypad by selecting
SYSTEM DATA-> Communication. The following information can be displayed (for details, refer
to Section 6.8.3):
 The numerical code of the last error of the modem and the time of its occurrence. The
numerical codes of errors and their meanings are shown in Table 13 .
 For the GPRS mode, the assigned current IP address
 Signal strength (in%) at the installation site
In addition, the keypad can be used, when needed, (especially for service purposes) to:
 Turn on the power of the GSM/GPRS modem,
 Initialize GSM/GPRS calls from the device to the master system (if this call option is set in
the device parameters),
 Send SMS
10.3 Connecting communication devices via RS232 interface
In terms of data transmission, we distinguish two types of devices, DTE - Data Terminal
Equipment and DCE - Data Communication Equipment.
Both ELCOR and ELCOR
plus are DTE devices.
Depending on whether a device of the same type (i.e. DTE) or a DCE-type device is used, either
a crossover or a direct link cable is used. For example, a PC is a DTE device, a modem is a DCE
device.
Generally (RS232):
In case of ELCOR, ELCOR plus is connected via external module B-RS, B-RS/A. This
communication module includes an internal signal crossing. Therefore, connecting to a PC and
modem will look like this: