Paradyne 3172 Operator's Manual page 23

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:
"
Procedure
1. Connect the black wire to the – 48 Vdc return
source B.
2. Connect the red wire to the – 48 Vdc return
source A.
DSU/CSU POWER
Figure 2-12. – 48 Vdc Redundant Source Power Supply Pinouts
3170-A2-GB20-30
PLUG
BLACK
1
RED
2
GREEN
3
WHITE
4
ORANGE
5
BLUE
6
3. Connect the green wire to a suitable 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.
TO CUSTOMER-SUPPLIED BATTERY
–48 VDC RETURN B
–48 VDC RETURN A
GROUND
X
–48 VDC INPUT B
–48 VDC INPUT A
March 1999
Installation
99-14300-02
2-7