Peripheral
Connections
Connecting
to
Alarm
Input/Output
Device
The alarm input/output interface of the DVR is shown below:
The alarm input is an open/close relay. If the input is not an
open/closed relay, follow the connection diagram below:
To connect to an AC/DC load, use the following diagram:
For DC load, JP4 can be used within the limit of 12V/1A
safely. If the interface is connected to an AC load, JP4 should
be left open. Use an external relay for safety (as shown in the
figure above).
There are 4 jumpers (JP4, JP5, JP6, and JP7) on the
motherboard, each corresponding with one alarm output. By
default, jumpers are connected. To connect an AC load,
jumpers should be removed.
Note:
An external relay is needed to prevent electric shock
when connecting to an AC load.
Alarm
Connection
To connect alarm devices to the DVR:
1.
Disconnect
pluggable block
from the ALAM IN
/ALARM OUT terminal block.
2.
Unfasten stop screws from the
pluggable block
, insert
signal cables into slots and fasten stop screws. Ensure
signal cables are in tight.
3.
Connect
pluggable block
back into terminal block.
RS
‐
485
Connection
To connect RS-485 devices to the DVR:
1.
Disconnect
pluggable block
from the RS-485 terminal
block.
2.
Unfasten stop screws from the
pluggable block
, insert
signal cables into slots and fasten stop screws. Ensure
signal cables are in tight.
3.
Connect
pluggable block
back into terminal block.
4 Installation Guide
- DS-7300HFI-S Series DVR
alarm shop
