5.0 OPERATION
The DLH6420 unit works as a distribution repeater for expanding one RS-
422 communication port into 16 isolated and buffered RS-422 ports. The
primary use for the DLH6420 is to provide quick, easy, and proper data-
line distribution for serial type pan/tilt and dome receivers. In the case of
these isolated RS-422 drive lines, the remote devices may be located as
far as 4,000 feet (1,219 m) away from the controller, depending on the
physical parameters of the connection.The unit is ideal for use on larger
switching systems where it becomes desirable to “home-run” the RS-422
data lines for controlling pan/tilt or dome receivers.
6.0 SPECIFICATIONS
ELECTRICAL
Input Voltage:
120/230 VAC, 50/60 Hz, auto-ranging, or
Independent external source, 10-24 VAC/VDC
Consumption:
30 vA
Data Ports
Input:
One RS-422, RJ-45 female connector
Output:
One RS-422, RJ-45 female connector
Drive Lines:
Sixteen 3-position screw-terminals with mating plugs
Fusing:
500 mA, 250 V
Indicators:
1 power LED, green
1 data LED, red
MECHANICAL
Dimensions:
Base Only: 1.75" H x 17”W x 8”D (4.45 x43x20. 45 cm)
With Rack Ears: 1.75" H x 19”W x 8”D (4.45 x48.26x20. 45 cm)
Operating
Temperature:
32° to 122°F (0° to 50°C)
Weight:
6.6 lb (3 kg)
GENERAL
Mechanical
Connectors
Power: AC power cord input, 3-wire, #18 AWG
2-pin screw terminal with mating plug for external
power source
RS-422: Two RJ-45, female
RS-422 Breakout
Ports: Sixteen 3-pin headers with mating plug; connectors can
accept 14–28 AWG
(Design and product specifications subject to change without notice.)
NOTE: If external AC transformer is used, it must be capable of supplying
at least 8 watts. DC source can be hooked up without regard to polarity.