AL3A-RM User Guide Version B
Document Number: 451-93156-002B
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Figure 3: A3LA-RM Connected to a DPL Handset via the HRC-24-8R
2.6
D
IGITAL
P
ERIPHERAL
L
INK
(DPL)
The DPL interface is composed of two ports—a full duplex asynchronous serial link for control
messages and a Pulse-code modulation (PCM) digital audio link for audio traffic. The protocol
used on these ports is made available to application developers only on a case-by-case basis
and after appropriate non-disclosure agreements and/or license agreements are executed.
DPL Handset
A3LA-RM Modem
HRC-24-8R Data Kit