Power Interface; Overview - Huawei MG301 Hardware Manual

HUAWEI MG301 B2B Module
HardwareGuide
Pin Pin Name
No.
Normal
39 NC
40 VIO
41 GND
42 VBAT
43 GND
44 VBAT
45 GND
46 VBAT
47 GND
48 VBAT
49 GND
50 VBAT
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

3.3 Power Interface

3.3.1 Overview

The power supply part of the B2B interface of the MG301 B2B module contains:
VBAT interface for the power supply

VCOIN interface for the standby power supply of the real-time clock (RTC)

VIO interface for external power output

Table 3-2 lists the definitions of the pins on the power supply interface.
I/O Description
MUX
- - Not connected, please
keep this pin open
- P External power output
- - Ground
- P Power supply input
- - Ground
- P Power supply input
- - Ground
- P Power supply input
- - Ground
- P Power supply input
- - Ground
- P Power supply input
P indicates power pins; I indicates pins for digital signal input; O indicates pins for digital
signal output; AI indicates pins for analog signal input; AO indicates pins for analog signal
input.
The NC (Not Connected) pins are internally connected to the module. Therefore, these pins
should not be used, otherwise they may cause problems. Please contact us for more
details about this information.
Description of the Application Interfaces
DC Characteristics (V)
Min.
-
2.70
-
3.30
-
3.30
-
3.30
-
3.30
-
3.30
Huawei Proprietary and Confidential Copyright ©
Huawei Technologies Co., Ltd
Issue 06 (2013-06-13)
Tpy. Max
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2.80 2.95
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3.80 4.80
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3.80 4.80
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3.80 4.80
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3.80 4.80
- -
3.80 4.80
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