Description:
The DA422 Data Distribution Card is designed for
use with the Modular Rack System for distances
up to 6,000 feet (1828 meters).
The Modular Rack system holds up to ten (10) modular
cards. Cards may be inserted in various combinations of
video and DA422 cards. The maximum allowable number
of DA422 cards per modular rack is four (4).
The DA422 is designed for use over category unshielded
twisted pair (UTP) cabling. The DA422 functions as a
RS422 distribution card. RS422 control signals from a
controller, matrix, etc. are connected to the input of the
DA422 and four (4) signals are available for distribution to
multi-points at the output either using an RJ45 modular
connector or screwless push terminals. The system can
also adapt to existing communication cables, computer
network spare pairs or new cable installations. The balanced
output design of the DA422 insures that the system
will not interfere with other equipment on the network. |
Features:
- Balanced communication output can be run in the
same cable with video, data, power &
communication signals
- RJ45 or screwless terminal block output connections
- EIA standard input and output
- Easy to install and configure
- LED presence indicators for RS422
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DA422 Modular Rack Card
| Size |
1.6"(4.1cm)H x 4.3"(11cm)W x
2.4"(6.1cm)D |
| Twisted Pair Input |
EIA standard RS422 |
| Output |
(4) separate EIA standard
RS422 signals |
| Data Rate |
Up to 64K baud |
| UTP Category |
Category UTP cable |
| Wire Size |
26 to 12 AWG unshielded
twisted pair |
| Temperature Range |
0 degrees C to +55 degrees C |
| Humidity Range |
0 to 98%, non-condensing |
| Shipping Weight |
1 lb |
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Applications:
- Extending keyboard operation for point to
multi-point control
- Operation in structured cabling environments
- Providing RS422 control, extension and distribution
for remote cameras
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| PART |
DESCRIPTION |
| DA422 |
RS422 Data Distribution Card 1 in - 4 Out |
| RK400 |
Modular Rack Cabinet with Power Supply |
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Wire and Cable Recommendations
The Model DA422 is recommended for use with unshielded
twisted pair (UTP) wiring. The system will operate over wire
gauges from 26 AWG through 12 AWG but is optimized for 24
AWG. Category cabling may be used. RS422 can be operated
in the same communication cable coexistent with video, telephone,
computer, control signals, power voltages and other
video signals. While RS422 may be routed through telephone
punch down block terminals, any bridge-taps, also called Ttaps
and any resistive, capacitive or inductive devices MUST
BE removed from the pair.
For more specific information regarding
wire types, gauges and proper installation techniques, please
call 800-528-4343 for technical assistance. More information
is also available on the CCTV System Design Guide Sheet.
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