Xiamen Caimore Communication Technology Co. Ltd. CM520-8AF Manuale Utente

   

   

------------------------------------------------------------------------------------------ 

Tel:+86 592 5901215                                                                  web:www.caimore.com/emain.asp 

 

68 

68 

center server, the unit is second. When the connection with center server fails, if 

reconnect time is less than configured times, it will reconnect center server 

within the appointed time. 

  Interval of keeping alive：Interval time of keeping alive data sent periodically 

to maintain link. Unit is second. Default is 60s. Interval of keeping alive time 

can’t set too small, if so, it will cause flow increasing. It also can’t be too large, 

if so, device can be detected after long time offline. Suggested value is 

10S<X<120S 

  Self-registered packet：  When DTU establish connection with center server, 

DTU will send registration information to center; if registration packet needs 

specific definition, please install the specific definition here 

  Keep alive packet define：After DTU connect with wireless network, if there is 

no data transmission within a certain time, wireless network will disconnect 

with DTU automatically. In order to keep DTU connection with wireless 

network, it will send packet to data center from time to time 

Option：None Function      introduction: don’t send packet 

Option：Use Default Function introduction: use default 0xFE 

Option：Self Define Function introduction: Customer define their own packet 

according to actual situation 

SNMP  is  Simple  Network  Management  Protocol.  If  enable  this  function,  the 

device  can  connect  with  SNMP  server,  and  users  can  manage  and  configure  the 
multi  devices  with  SNMP  client,  including  parameter  configuration  of  one  or 
more device, upgrading remotely and querying GPS location information(if GPS 
is supported), flow information, real-time signal information, etc.