Cisco Systems ASR 903 manual Installing the Terminal Block, 3-20

Chapter 3 Installing the Cisco ASR 903 Router

Installing the Power Supply

Figure 3-16 Installing the DC Power Supply

GE-0

GE-1

GE-2

GE-3

GE-4

GE-5

GE-6

GE-7

PWR

FAN TEMP

STAT

CRIT MAJ MIN

GE-0

GE-1

GE-2

GE-3

GE-4

GE-5

GE-6

GE-7

PWR

STAT

GE-0

GE-1

GE-2

GE-3

GE-4

GE-5

GE-6

GE-7

PWR

RUDY RSP

STAT

SYNC

ACT

PWR

1PPS

1PPS

1OMHZ

1OMHZ

PWR

MEM

CONSOLE

TOD

BITS

MGMT

STAT

IN

OUT

IN

OUT

STAT

ENET

L 0 S

L 1 S

L 2 S

L 3 S

L 4 S

L 5 S

L 6 S

L 7 S

PWR

STAT

L 0 S

L 1 S

L 2 S

L 3 S

L 4 S

L 5 S

L 6 S

L 7 S

PWR

ALARM

STAT

L 0 S

L 1 S

L 2 S

L 3 S

L 4 S

L 5 S

L 6 S

L 7 S

INPUT

24V—60V

28A

OK

OUTPUT

FAIL

282340

Step 5 Tighten the captive installation screws of the power supply. The recommended maximum torque is 5.5 in.-lb (.62 N-m).

If you are installing a redundant DC power supply, repeat these steps for the second power source.

Installing the Terminal Block

Perform the following procedure to install the terminal block:

Step 1 Locate the terminal block plug.

Step 2 Use a wire-stripping tool to strip the ends of each of the two wires coming from the DC-input power source to 0.27 inch (6.6 mm) ± 0.02 inch (0.5 mm) and the wire for grounding. Do not strip more than

0.29inch (7.4 mm) of insulation from the wire. Stripping more than the recommended amount of wire can leave behind exposed wire from the terminal block plug after installation.

Step 3 Identify the ground, positive, and negative feed positions for the terminal block connection. The recommended wiring sequence is:

a.Ground lead wire (right)

b.Negative (-) lead wire (left)

c.Positive (+) lead wire (middle)

	Cisco ASR 903 Router Hardware Installation Guide
3-20	OL-25178-04