Positron Teleline 751109/15, Description And Installation

Page: 39 / 57

39
Power Connections
Table 4: 8-card Shelf CCC model 751109/15, Powering Via Station Side
Cable:
Label Description Connector Position 25-Pair Cable
GND Ground TB1-2 Yellow/Green
GND Ground TB1-2 Green/Yellow
AUX PWR Auxiliary Power TB1-1 Violet/Brown
AUX PWR Auxiliary Power TB1-1 Brown/Violet
-24 Vdc -24 Vdc Supply TB2-1 Yellow/Slate
-24 Vdc -24 Vdc Supply TB2-1 Slate/Yellow
-48 Vdc -48 Vdc Supply TB2-2 Violet/Orange
-48 Vdc -48 Vdc Supply TB2-2 Orange/Violet
Note: For floating 130 Vdc, connect the positive lead to TB1-1 and the negative lead to
TB2-2.
N
OTE
Q
If an external DC supply is not available, a Power Supply Card (models
751313MC, 751318MC, 751319MC or 751316) will be needed. To
connect the power cable, refer to Section 3.6 on page 41.
Q
If an external DC supply is available, and you have decided to add an
internal power supply, you must first disconnect the -24 Vdc and/or -48
Vdc input to TB2. You need to do this because this input is on the same
bus as the power supply output and it will load the Power Supply Card
down. Then connect the power cable provided to TB3. The Power
Supply Card itself can only be powered via TB3, refer to Section 3.6 on
page 41.