RDL TX-TPR3A Users Manual

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SENDING AND RECEIVING MODULES MAY BE POWERED SEPARATELY

SENDING AND RECEIVING MODULES MAY ALL BE POWERED FROM AN INSERTION POINT IN A LONG CABLE RUN

FORMAT-A POWERING

If the total distance between the sending and receiving modules is too
long to power all the modules from one end or from an insertion point in
the cable, the modules may be powered at each end of the cable run.

5

The total current of single or multiple senders
determines the maximum distance of the
SENDER(S) CABLE RUN.

SENDER(S) CABLE RUN RECEIVER(S) CABLE RUN

POWER INSERTER

Use a power supply with sufficient
current to power both cable runs and
the module that inserts the power.

Power may be inserted using an
RDL Twisted Pair Power Inserter or
a Format-A Distributor.

SENDING AND RECEIVING MODULES MAY ALL BE POWERED FROM ONE END OF A CABLE RUN

The total current of single or multiple senders
determines the maximum distance of the
SENDER(S) CABLE RUN.

SENDER(S) CABLE RUN

Use a power supply with sufficient
current to power all the modules.

The total current of single
or multiple receivers
determines the maximum
distance of RECEIVER(S)
CABLE RUN.

FORMAT-A CABLE LENGTH

MAXIMUM DISTANCE BETWEEN A POWERED MODULE AND REMOTELY POWERED MODULES BASED ON

TOTAL CURRENT CONSUMPTION OF REMOTE MODULES

2000 ft

1750 ft

1500 ft

1250 ft

Distance

1000 ft

750 ft

500 ft

250 ft

23 AWG; 20.75 Ω22 AWG; 16.5 Ω21 AWG; 13 Ω

30

40 50

70 80 90 100 110 120 130

60

Current (mA)

24 AWG; 26 Ω

600 m
575 m
550 m
525 m
500 m
475 m
450 m
425 m
400 m
375 m
350 m
325 m
300 m
275 m
250 m
225 m
200 m
175 m
150 m
125 m
100 m

75 m

Determine the maximum cable run distance from the chart.
Distances are provided for common wire gauges at various
total module currents.

CAT5 cable is normally 22 AWG; CAT6 cables range from
22 to 24 AWG.

Some twisted pair cables have a lower resistance than the
typical resistance for a specified wire gauge, and therefore
may be used over a longer distance than is shown in the
chart. The chart is based on the resistances indicated,
which is the resistance of a single conductor over 1000
feet or 300 meters. Resistance measurements on the wire
used provides the most accurate distances.