Chapter 3: AT Commands Reference
June 30, 2008 AT Commands Reference Manual 3-445
UART Flow Control

The following sections describe UART flow control in the MUX.

UART Hardware Flow Control

G24 supports automatic UART hardware flow control.

UART Software Flow Control

Software flow control at the physical UART level is not supported in MUX.

MUX Software Flow Control Per Channel

The MUX feature supports software flow control per channel at basic mode, according to 3G TS

27.010 V3.3.0.

There is no support for software flow control per channel at advanced mode.

Power Control
Services Includes both sleep and wakeup services. This service will be supported in future
versions.
DLC Release
Services Used to disconnect a DLC exclude control channel (DLCO).
Close Down
Services
(CLD, DISCO,
Exception
situations)
Used to terminate multiplexer operation on the serial channel and resume GRLC
operation (returns to PREMUX state).
Control
Services Includes services at the MUX entity level and at the specific DLC level.
MUX Entity Level services (channel 0):
Test Service used to test the communication link between two MUX entities.
Specific DLC Level services (all DLC except 0):
1. A specific DLC HW modem status is reflected by logical (SW) means. A Modem
Status Command (MSC) is used to control specific DLC modem signals, as a
substitute for the HW lines in PREMUX. Initial values are expected to mirror the HW
values in PREMUX.
Note: The MSC break signal, RTS and CTS are not supported.
2. "Non Supported Command" response: NSC frame
Unsupported
Control
Services
PN, RPN, RLS, SNC (27.010 options)
Service Description