Quectel RG520N-AT - Time Service and Repeater Interface

5G Module Series
RG520N-AT_Hardware_Design 69 / 109
Table 33: Behaviors of MAIN_RI
The MAIN_RI behavior can be changed via AT+QCFG="urc/ri/ring".
4.15. Time Service and Repeater Interface
Time service provides time information for other devices or systems through standard or customized
interfaces and protocols. Its basic channels are shortwave, TV signals, cables, networks, satellites, base
stations, etc.
Repeater is a kind of wireless signal relay device, which amplifies the base station signal and then
transmits it to areas with weak signal coverage, expanding the network coverage.
With GNSS time service and repeater functions, the module can provide 1PPS pulse output, and can
execute time service through AT commands based on baseline SIB9 system messages.
Table 34: Pin Definition of Time Service and Repeater Function
State
Response
Idle
MAIN_RI keeps at high level.
URC
MAIN_RI outputs 120 ms low pulse when a new URC returns.
Pin Name
Pin No.
I/O
Description
Comment
GPIO_32
98
DO
Supports time service and
repeater functions;
supports 1PPS pulse
output and frame
synchronization
1.8 V power domain.
The pin can be multiplexed
into AP2SDX_STATUS
function. For details, contact
Quectel Technical Support.
If GPIO_32 is needed for other purposes, its default function should be disabled in the relevant software
configuration.
NOTE