Specifications

34 en | Unpacking Digital Video Quad Processor
F.01U.090.110 | 3.0 | 2010.04 User’s Guide Bosch Security Systems, Inc.
Video Loss Alert Technical specifications
The LTC 2382/90 may be programmed to produce an alarm if the video signal to any of the
four camera inputs is lost or defective. (NOTE: Video Loss Alert must be ON for the respective
input). A loss of video produces the following:
– The Video Quad displays the video loss icon on the monitor.
– The Video Loss output (Relay 2) is active.
2.5.2 Controlling the Video Quad Processor Remotely
The LTC 2382/90 Video Quad processor allows for remote communications over the RS-232
protocol. Use the 15-pin D-type connector, located on the rear panel, to connect the video
processor to a computer. This connection is facilitated by an adapter/break-out board, as
illustrated below:
Figure 2.18 Multiple Unit Remote Configuration
The signal format for the RS-232 protocol is:
– Data Format: 9600 Baud / 8 Data Bit / No Parity / One Stop Bit
– Mode: Duplex
– Unit echoes received characters.
Using the RS-232 Protocol
Once the video processor is connected to the computer, you can use the RS-232 command
set to control the video processor. The RS-232 command set is broken into two groups:
– Front Panel Key Commands
– Parameter Set/Read Commands
1 DVR 6 LTC 2382/90 Unit 1
2 Switcher 7 LTC 2382/90 Unit 0
3 Transmitting (Tx) 8 Ground
4 Receiving (Rx) 9 Maximum length of any common link: 15.4 m (50 ft)
5 LTC 2382/90 Unit 2 10 Central PC/Terminal
IN
OUT VCR OUT
MON
ALARM/REMOTE
VCR IN
5V DC
GND
IN
OUT VCR OUT
MON
ALARM/REM OTE
VCR IN
5V DC
GND
IN
OUT VCR OUT
MON
ALARM/REM OTE
VCR IN
5V DC
GND
UNIT ID: 000UNIT ID: 001
1
2
43 3 3
3
4 4
4
5
6 7
9
10
8
i
NOTICE! Control commands for the LTC 2382/90 Video Quad are identical to those for the
LTC 2376/LTC 2377 Quad. The wiring requirements and the baud rate, however, are different.