2.0 DESCRIPTION
The DLH6420 code distribution unit is a 16-channel RS-422 transmit
only (2-wire and ground) distributor. It was designed as an
accessory of the System DLH4200B, but can be used with any
system that uses RS-422 serial communications. The product will
primarily be used to install pan/tilt and dome receivers in a “star’’
configuration.
2.1 MODELS
DLH6420 16-channel RS-422 transmit only distributor
2.2 FEATURES
The DLH6420 has the following features:
• Two 8-position, RJ-45 connectors in parallel, providing an input
from a controller and an output for an additional daisy-chained
unit
• Sixteen 3-position screw terminal connectors used to output 16
RS-422 transmit only code lines
• Two-pin terminal connector (refer to figure 3) for an external 10
to
24 VAC/VDC power source
• Standard 120/230 VAC 50/60Hz line input (auto-ranging)
2.3 CERTIFICATIONS
The product identified below has been tested and certified for
agency compliance as noted.
Agency Compliance Certification
Model
CCC
CE
DLH6420
Applicable CE,CCC directives/standards:
• 93/68/EEC–CE Mark Directive
89/336/EEC, 92/31/EEC–Electromagnetic Compatibility (EMC)
Directives
EN 55022: 1984 Class B–Radio-frequency emissions limits
EN 50082-2: 1992–Immunity standard
IEC 801-2: 1984–ESD immunity
IEC 801-3: 1984–Radiated field immunity
IEC 801-4: 1988–Electrical transients