Datalink Systems i50 Spezifikationen PDF herunterladen (Seite 38)

i50 Manual (5.10)

Page 38

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connection), or from a DataHost client, to the network server. The data is then forwarded to the i50,

which will send the data out the transparent COM port to the attached serial device.

Data sent by the serial device is buffered by the i50 to prevent loss. Transmission occurs after a gap

of 200 ms between characters, or if the data buffer (1500 bytes) is more than 2/3 full. The i50 settings

control whether multiple transparent packets will be buffered at one time. If disabled, the i50 will

delete any existing transparent data when new data is received. Another setting enables attaching a

GPS position to each transparent data packet. This GPS position will be processed and removed by

the server, so it will not interfere with the raw data.

A special version of firmware is available for interfacing the i50 with traffic signs. This firmware uses

the transparent port to send data to the signs.

Caution: the i50 will send all data that it receives on the transparent port, which may increase

network data costs considerably.

8.7 Ext. GPS

If an external GPS receiver is available, the i50 can be configured to use it as a location source. The

i50 requires a standard NMEA serial string, and supports both RMC and GGA messages.

8.8 OBD-II

An external OBD-II box is available to interface the i50 with the vehicle engine. This allows the unit to

monitor various engine parameters and send alerts when values exceed a predefined range. Current

firmware is designed to talk to adapters that use the ELM-327 chipset.

8.9 Alarm Interface

This is a custom option to allow the i50 to control an external alarm box.

8.10 Grace Pager

The i50 can communicate with a Grace Industries pager receiver or transceiver to receive signals

from Grace pagers and optionally send commands to the pagers. Two pager types are supported: the

T-Pass series, which is a one-way intrinsically safe pager; and the Super-Cell series, which is a two-

way pager with LCD screen.

When a panic button push or no-motion alarm is received from a pager, the i50 will immediately enter

alarm mode. See section 13.4 for more information on alarm mode.

When a Garmin display is connected, the i50 will automatically send messages to the Garmin when

pager signals are lost or found, and when alarms are received. Call-back alerts and pager test

signals can also be sent to Super-Cell pagers using the Garmin messaging interface. See section

11.0 for more information.

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