PairGain HiGain HRE-420 List 1B, Руководство пользователя

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150-420-112-01 December 22, 1997 Revision 01
HRE-420 List 1B PairGain Engineering - Plant Series 5
Figure 4. HRE-420 List 1B Pin-out Connections
Power and Ground Wiring
Attach earth ground to the FRAME GND lug if local practice dictates. If local
power is required, connect -48 V to TB1-2 and power return (CKT GND) to
TB1-1 (
Figure 4 ).
The wall mount plate has a printed circuit board which connects the card edge
connector to terminal block TB1. The lug holes for this List 1B mounting
base are typical for all HRE-420 enclosures.
HDSL Interface Wiring for HRU-412 Applications
HDSL LOOP 1 and 2 are the two HDSL pairs coming to the HRE-420 from
the field cable pairs as shown in Figures
3 and 4 .