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HUAWEI MU509-65 HSDPA LGA Module
Hardware Guide
Pin
Pin Name
No.
77
UART_RING
74
UART_RTS
79
UART_DTR
80
UART_CTS
75
UART_DCD
73
UART_DSR
Figure 3-18 shows the connection of the UART interface in the MU509-65 module
(DCE) with the host (DTE).
Figure 3-18 Connection of the UART interface in the MU509-65 module (DCE) with the
host (DTE)
Issue 01 (2016-04-08)
Pad
Description
Type
O
UART ring indicator
UART ready for
O
receive
UART data terminal
I
ready
I
UART clear to send
UART data carrier
O
detect
UART data set
O
ready
Module
(DCE)
UART_RX
UART_TX
UART_CTS
UART_RTS
UART_DTR
UART_DSR
UART_DCD
UART_RING
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Description of the Application Interfaces
Parameter
Min. (V)
V
2.15
OH
V
0
OL
V
2.15
OH
V
0
OL
V
1.69
IH
–0.3
V
IL
V
1.69
IH
–0.3
V
IL
V
2.15
OH
V
0
OL
V
2.15
OH
V
0
OL
Typ. (V)
Max. (V)
-
2.6
-
0.45
-
2.6
-
0.45
-
2.9
-
0.91
-
2.9
-
0.91
-
2.6
-
0.45
-
2.6
-
0.45
Application
(DTE)
TXD
RXD
RTS
CTS
DTR
DSR
DCD
RING
35
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