Paradyne 3172 Operator's Manual page 22

Installing the Redundant – 48 Vdc Power
Supply
To install the E1 DSU/CSU using a redundant – 48 Vdc
power supply, refer to Figure 2-12 and use the following
procedure.
To install the redundant – 48 Vdc power supply,
1. Connect the black wire to the – 48 Vdc return
source B.
2. Connect the red wire to the – 48 Vdc return
source A.
Figure 2-12. – 48 Vdc Redundant Source Power Supply Pinouts
3170-A2-GB20-10
3. Connect the green wire to a suitable earth ground.
4. Connect the orange wire to the – 48 Vdc input
source B.
5. Connect the blue wire to the – 48 Vdc input
source A.
6. Cut the white wire off at the outer insulation.
7. Plug the power connector into the E1 DSU/CSU.
March 1996
Installation
2-7