22
2.6.2. Network connection through patch cable
Diagram 2.10
The connection to an existing network requires a normal patch cable (straight-through). The
illustration shows the connection to a network switch, router or modem.
2.6.3. Network system requirements
Connection type: 100Base-T
Max. required network bandwidth: 10 Mb
Protocol types: TCP, UDP, SMTP, HTTP, NTP
Required ports: for port configuration, please refer to NETWORK menu
2.7 Hard Disk Drive Installation
The first step in installing the hard drive is to insert the hard drive sleeve into the machine. The
second step is to insert the key provided and turn it to the lock position. If this process is ignored the
hard disk drive will not be detected. Follow the previous steps for the second hard drive or second
empty sleeve. Both hard drives should be set to MASTER. Otherwise, they will not be detected.
Note: A HDD should be installed before EDR1640/1620/920 is booted, or the
EDR1640/1620/920 will not detect a HDD until you reboot it with a HDD. Please make
sure the green HDD indicator light is ON. If the Hard Disk Drive is not locked in with the
key the Hard Drive will not being recognized and the DVR will not go into record mode.
Note: After powering on the DVR, it will start to load system. It takes a while to
complete loading system; during this time, please do not install or remove the hard disk.
No action is recommended while the machine is loading system.