Huawei MU509 - Page 25

HUAWEI 30 mm × 30 mm LGA Module
Hardware Migration Guide
LGA Interface Differences
Issue 08 (2016-12-12)
HUAWEI Proprietary and Confidential
Copyright © HUAWEI Technologies Co., Ltd.
25
Figure 2-7 The recommended connection of the W_DISABLE pin
For MC509 and MU509, install R1, R3, and do not install R2;
For MU609, ME209u-526, ME909u, MU709, and ME909s install R2, R3, and do not install R1.
R4 depends on the DTE GPIO driver.
POWER_ON_OFF
Pin 81 is low active by default and works as the POWER_ON_OFF signal.

When this pin is pulled down for 0.5s to 1.0s (at least 1.0s for MU709 and
ME909s), the module will be powered on.

When the module works at the normal state, if this pin is pulled down for 3.5s to
4.0s (at least 4.0s for MU709 and ME909s), the module will be powered off.
Table 2-7 Differences of POWER_ON_OFF interface
Pin
No.
Interface
Name
MU509
MC509
MU609
ME209u
-526
ME909u
MU709
ME909s
81
Control
POWER_
ON_OFF
Y
Y
Y
Y
Y
Y
Y