User's Manual

6
8. Power Supply
The AMP2440P comes with a power supply that have standard 2.1 mm barrel plugs (which
are configured as positive (+) tip and negative ( - ) outer conductor). Although normally
supplied with a power supply, any regulated 12 Volt DC 1 amp supply can be used. The
power supply provided with the kit can be used with 110 or 240 VAC power.
9. Operation
The unit operates automatically and there are no user adjustments.
These modems “ping-pong” back and forth between transmit and receive so quickly during
normal operation that both the TX and RX LEDs will appear to be lit simultaneously. In fact,
they are turning on and off so quickly that they appear to be on all the time. You can tell how
quickly one of these LEDs are turning on and off by their brightness. Their glow will be slightly
dimmer when they are off.