Huawei MU509 Hardware Migration Manual page 25

HUAWEI 30 mm × 30 mm LGA Module
Hardware Migration Guide
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.
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Table 2-7 Differences of POWER_ON_OFF interface
Pin Interface Name
No.
81 Control POWER_
ON_OFF
Issue 08 (2016-12-12)
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.
MU509 MC509
Y Y
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Copyright © HUAWEI Technologies Co., Ltd.
MU609 ME209u ME909u
-526
Y Y Y
LGA Interface Differences
ME909s
MU709
Y Y
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