Test Points - Huawei MU509 Series Development Kit Manual

HUAWEI 30 mm x 30 mm LGA Module
Development Kit Guide
Figure 3-7 HS_UART1






3.3.11 Test Points

The DVK provides many test points for testing. The signal assignment of test points is
shown in Figure 3-8 and Figure 3-9 .
Issue 05 (2016-12-12)
LS<-UART1: UART1 DB9 port on the mother board can be used, but
HS_UART1 port on the interface board cannot be used.
ON<-POWER: the POWER_ON_OFF signal is pulled down to GND. In this
situation, once the module is supplied power, it will be powered on automatically.
But if R645 is not installed, this function cannot be used, and then you need
press PWRON KEY to power on the LGA module.
POWER-> OFF: the POWER_ON_OFF signal is not pulled down to GND, which
does not mean the LGA module will be powered off. You should press the
PWRON KEY for n seconds to power off LGA module. "n" is different between
LGA modules, and you can refer to LGA module's hardware guide.
LS<-UART0->HS: refer to LS<-UART1->HS.
FORCE_LD: only for internal use.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Interface Description
26