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Power and Grounding
The non-isolated mode only uses one power supply, but has no failsafe feature, since all circuits are lost if the
power supply fails. To connect a single power supply for non-isolated mode:
1
Connect the power supply to either TB3 or TB4.
2
Connect the equivalent pins of the unused terminal block to the active terminal block. This connects the power
source to all slots.
Third party wall mount power supplies can be used to provide 48 V power for various plug applications, as shown
in
Table
2.
Maximum
HiGain Unit
power
per unit
HRU-402
3.5 Watts
HRU-412
6 Watts
HLU-431 (no
14 Watts
doublers)
HLU-431
24 Watts
(with
doublers)
* Minimum input power lead wire size current capacity is based on 1000 circular mils per ampere.
10
Figure 8. TB3 and TB4 Pin Assignments
Table 2. Power Requirements for Various Plug Applications
Power
Number
Required
of units
(mA)
1
73
1, 2, or 3
210
4
300
1
125
2
250
1
300
2
600
1
500
2
1000
Power supply
Westell 6048-01 (100 ma)
Teltrend 2005 (250 ma)
Troncom WPS-4806 (520 ma) 26
Teltrend 2005
Troncom WPS-4806
Troncom WPS-4806
Troncom WPS-4810
Troncom WPS-4806
Troncom WPS-4810
May 7, 1999
150-204-100-03, Issue 3
Input Power
AWG Wire Size*
(Two Inputs) (One Input)
26
26
26
26
26
26
26
26
26
26
26
26
22
26
22
22
20
HRE-204 List 1 and List 2
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