User’s Manual of VCG-1500WG-LTE
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increasing. It also can’t be too large, if so, device can be detected after being offline for a
long time. Suggested value is 10S<X<120S
Self-registered packet
When DTU establishes 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 is connected 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: Customers define their own packets according
to actual situation.
Appendix: FAQs
1
、
Frequently on/offline
Please enter system status to check network signal situation and to confirm whether network signal is too weak.
Please check corresponding parameters of keeping online, whether rules are met.
If keeping-online destination IP uses domain name, please log in to gateway command terminal (appendix 1) to confirm
whether decoding domain name and visiting destination address are normal.
2
、
Forget passwords
Please restore to default setting via reset button
3
、
LAN indicator is off
Please check whether network cable connects with gateway closely.
If gateway connects with PC directly, please change cross network cable.
Please connect gateway with switch to check network link is normal or not.
4
、
Can
’t dial up to be online
Please check WAN configuration information whether it is the same as information ISP supplied.
Check signal by system status, if signal is weak, please check whether the antenna connects correctly.
Please check whether this place is covered by network.
Please check signal and card situation from system status. If card situation is wrong, please re-insert or change new card.
5
、
Dial up to be online, but can
’t visit website
Please check device gateway whether it points Gateway.
Whether DNS is the same as gateway, if not, please revise (reference Appendix 6)
If DNS information is input, please check whether they are correct.
If DNS is correct, please clear (use obtain DNS automatically), after dial-up is successful. Please input according to system
status supplied DNS
