PRODUCT OVERVIEW
MultiConnect
®
Cell MTC-LVW2 User Guide 9
Descriptions of LEDs
The top panel contains the following LEDs:
Power and Terminal Ready LEDs—The Power LED indicates that DC power is present and the TR LED
indicates when the unit is ready to receive data.
Modem LEDs—Two modem LEDs indicate carrier detection and link status.
Signal LEDs—Three signal LEDs display the signal strength level of the wireless connection.
LED Indicators
POWER Indicates presence of DC power when lit.
TR Terminal Ready. When lit, indicates connection to terminal emulation. When not lit,
indicates no terminal is present.
(for serial only)
CD Carrier Detect. Indicates established data connection when lit.
(for serial only)
LS Link Status.
OFF — No power to the cellular radio
Continuously lit — SIM is not installed, or no signal is present
Slow blink — Powered and searching for a connection, or connected
PROG. SIGNAL Displays the strength of the cellular signal.
Note: The three PROG. SIGNAL LEDs can be controlled as follows:
GPIO2: Controls the LED with a single bar above it
GPIO3: Controls the LED with two bars above it
GPIO4: Controls the LED with three bars above it
For more information on using GPIO to control the LEDs, review the AT Command
Guide.
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