Piu Connectors; Piu Led Operation - Motorola Piccolo-XR Owner's Manual

PIU Connectors

The PIU connectors (see Figure 18):
•
RS232
•
RS485
•
Adapter port
•
PGND And Power Switch
•
24 V AC PWR IN
•
6, 9, 12 V DC Battery Input

PIU LED Operation

Three software programmable LED indicators are located on
the PIU enclosure (see Figure 18). These indicators can be used
for diagnostics purposes.
•
Radio TX/RX (RED): ON – a valid frame is received
by the internal DPSK modem or the PIU transmits a
frame.
•
RS232/RS485 RX/TX (ORANGE): ON – a valid
frame is received or transmitted through the
RS232/RS485 port (UART1).
•
Adapter port TX/RX (GREEN): ON – a valid frame is
received or transmitted through the adapter port
(UART2), or the Radio is being programmed.
The DIOS PIU and Piccolo-XR Units
(RJ45, 8 pin)
(RJ10, 4 pin)
(RJ10, 4 pin)
(TB 3 pin)
(2 pin)
(2 pin)
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