User Manual

NOTCHCELL 20W OPERATING MANUAL
R-tron America, Inc. Page: 57 / 57
B.1.4 Modem Configuration
 Network Connection :
① Modem Mode : This button lets you see the modem status. When you press the
button, the Modem Status window, the Modem Configuration window, the Modem
Statistics window, and the Modem Status window are activated. With the [NMST]
button in the Modem Status window, you can see modem status.
② PPP Mode : Stands for Point to Point Protocol, which helps set connection
between the MCU and WNMC. PPP connection is automatically set. Facing
connection failure, MCU retries until the connection is successful. When PPP is
fully set, the Modem Status window, the Modem Configuration window, and the
AT Command window are automatically de-activated.
③ WNMC : This button lets you clear PPP connection. You can see whether PPP is
connected/disconnected depending on the icon color of the WNMC button. You
can see the connection status in the window next to the WNMC button. You can
have access to the PPP and verify the ‘Disconnected’ status and press the
“WNMC” button. At this time, you need to check if the status window next to the
“WNMC” button is changed: Disconnected ->calling-> PPP Connected. If the
connection fails to be set in 60 seconds, the status will be ‘Disconnected’ due to
timeout. In this case, you can press the “ WNMC” button again to set the
connection. With PPP set, MCU is connected to the Internet, enabling SNMP Trap
messages to be sent to WNMC whenever alarms and Heartbeats occur.
 Program Download : Lets you download a new firmware version to the MCU when
firmware is upgraded. Downloaded files should be in Binary format and
downloading methods are split into Ack and NoAck.
① Download (AcK) : Receives AcK (acknowledge messages) for each message that
is transmitted to calculate Check Sum. When errors are generated during file
transmission, the transferring will be immediately stopped. This method requires
roughly one more minute than the NoAcK method.
② Download (NoAcK) : Calculates Check Sum for each message that is transmitted
when AcK may not be received. AcK messages are received when the
transmitted messages are completely sent. This method reduces one minute to
download than the Ack method.