Copyright ⓒ. 2014. All Rights Reserved.
3. Interface
3.3 UART(RS-232 Interface)
This module is provided with interface supporting Standard RS-232 protocol.
DCE(modem) communicate with DTE(host) through data or control AT-
Command.
Pin No.
Signal Name
Direction
Function
37
UART_RXD
I
UART RX DATA
39
UART_TXD
O
UART TX DATA
7
UART_RFR
O
UART ready-for-receive
8
UART_CTS
I
UART clear-to-send
3.4 USB
It is supported with universal serial bus for high data communication. And It
is satisfied with USB2.0 specification and supported with max.480Mbps
Pin No.
Signal Name
Direction
Function
37
UART_RXD
I
UART RX DATA
39
UART_TXD
O
UART TX DATA
7
UART_RFR
O
UART ready-for-receive
8
UART_CTS
I
UART clear-to-send
Table 2. UART Pin descriptions
Table 3. USB Pin descriptions
