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2. Installation
2-6
February 2001 3160-A2-GB21-90
Figure 2-9. +24 Vdc Power Supply Pinouts
Installing the Single –48 Vdc Power Supply
To install the DSU/CSU using a single source –48 Vdc SELV power supply, refer to
Figure 2-10, –48 Vdc Single Source Power Supply Pinouts, and use the following
procedure.
Procedure
To install the –48 Vdc single source power supply:
1. Connect the black and red wires to the –48 Vdc return source.
2. Connect the green wire to a suitable ground.
3. Connect the orange and blue wires to the – 48 Vdc input source.
4. Cut the white wire off at the outer insulation.
5. Plug the power connector into the DSU/CSU.
Figure 2-10. –48 Vdc Single Source Power Supply Pinouts
1
2
3
4
5
6
BLACK
RED
GREEN
WHITE
ORANGE
BLUE
GROUND
+24 VDC RETURN
+24 VDC SOURCE
99-14298-02
X
X
X
DSU/CSU POWER
PLUG
TO CUSTOMER-SUPPLIED BATTERY
1
2
3
4
5
6
BLACK
RED
GREEN
WHITE
ORANGE
BLUE
–48 VDC INPUT
99-14299-02
X
GROUND
DSU/CSU POWER
PLUG
TO CUSTOMER-SUPPLIED BATTERY
–48 VDC RETURN