Bosch Security Systems | 2004-11
DVR1A1081
| Installation Manual | Chapter 2
EN
| 8
2.3 Rear panel
2.3.1 Power
Connect the power suppy cable to the power socket at
the rear of the unit. Use the power switch to switch the
unit ON or OFF.
2.3.2 RS232 serial connector
Connect D-Sub 9-pin connector to the RS232 port if
you want to control the unit remotely.
2.3.3 IR remote control eye connector
If the remote control IR receiver window at the front is
hidden from view (if the unit is mounted in a cupboard),
connect the optionally available extension IR cable to
the remote control connector. Position the receiver eye
so that it is in line-of-sight of the remote control unit.
2.3.4 Alarm connections
The ALM-IN and ALM-RST inputs can be set to
Normally Open (N.O.) or Normally Closed (N.C.) in
the Alarm record menu.
GND: Ground
connection.
ALM-IN:
Apply a signal* here to start alarm
recording.
ALM-RST:
Apply a signal* here to stop alarm
recording.
REC:
A high level external recording request
signal* applied to this pin starts
recording. When the signal drops to low,
recording stops.
NC1, NC2:
No connections.
* Signal
- switching voltage High: > 2 Vdc
- switching voltage Low: < 0.5 Vdc
- max. input voltage: 12 Vdc
The alarm output signals are:
GND: Ground
connection.
ALM-NC**: When an alarm occurs, the connection
between this pin and ALM-COM is
open. Otherwise it is closed.
ALM-NO**: When an alarm occurs, the connection
between this pin and ALM-COM is
closed. Otherwise it is open.
ALM-COM**: Alarm common contact.
VEXT:
Synchronization signal for multiplexer.
Output voltage: 5 Vdc
Output current: 100mA
DISKFULL: Disk full alarm output signal.
Output voltage: 5 Vdc
Output current: 100mA
NC3, NC4:
No connections.
* * contact voltage max: 24 Vdc
max. switching current: 2A dc
Off
Power
AC 100-240
Monitor Out
Out 1
Out 2
Looping out
RS 232
Remote Control
GND
ALM
-N
C
ALM
-N
O
ALM
-C
O
VE
X
T
DISKFU
L
L
NC
3
NC
4
GND
In
Video
Monitor In
Mux main
GND
ALM
-I
N
ALM
-R
S
T
RE
C
NC
1
NC
2
GND
100-240 Vac
VEXT
GND
Power switch
RS-232
connector
IR remote
control eye
connector
Alarm connector
GND
ALM
-N
C
ALM
-N
O
A
L
M-CO
VE
X
T
DISKFU
L
L
NC
3
NC
4
GND
GND
ALM
-I
N
ALM
-R
S
T
RE
C
NC
1
NC
2
GND
Alarm inputs
Alarm outputs
EazeoRecorderInstalA.book Page 8 Tuesday, November 23, 2004 3:47 PM
