Juniper-networks T1600 Manual do Utilizador Página 19
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CAUTION: You must ensure that power connections maintain the proper polarity.
The power source cables might be labeled (+) and (–) to indicate their polarity. There
is no standard color coding for DC power cables. The color coding used by the external
DC power source at your site determines the color coding for the leads on the power
cables that attach to the terminal studs on each power supply.
5. Using a 7/16-in. nut driver or pliers, remove the nuts and washers from the
terminal studs (see Figure 10 on page 19).
Figure 10: Disconnecting Power Cables From the DC Power Supply
6. Remove the cable lugs from the terminal studs.
7. Loosen the captive screws on the cable restraints on the right edge of the power
supply faceplate.
8. Carefully move the power cables out of the way.
9. Loosen the captive screws on the lower corners of the power supply faceplate
completely.
10. Twist the ejector handles on the upper corners of the faceplate counterclockwise
to unseat the power supply.
WARNING: Do not touch the power connectors on the rear of the power supply (see
Figure 11 on page 20). They can contain dangerous voltages.
Upgrading the DC Power Supplies ■ 19
Upgrading the DC Power Supplies
- 28 April 2008 1
- Part Number: 530-021924-01 1
- Revision 2 1
- T1600 Routing Node Overview 3
- T1600 Upgrade Kit 5
- Power Supplies 6
- Table 2: Fault Tolerance 7
- 8 ■ T1600 Upgrade Kit 8
- T1600-SIBs 9
- Blower in the description 11
- Preparing the Site 12
- Typical Power Distribution 12
- Replacing the Rear Fan Tray 13
- Removing the Rear Fan Tray 14
- Installing a Rear Fan Tray 15
- Preparing the DC Power Cables 17
- Tools and Parts Required 17
- ■ Flashlight 18
- ■ Wire cutters 18
- OFF position (O) 22
- 2. Fasten the captive screws 24
- ON position ( 26
- Upgrading SIBs 27
- 28 ■ Upgrading SIBs 28
- Preparing to Upgrade the SIBs 29
- Tools Required 30
- Upgrading SIBs ■ 31 31
- Installing a T1600-SIB 32
- Upgrading SIBs ■ 33 33
- Exiting Upgrade Mode 34
- Verifying Operation 35
- 36 ■ Upgrading SIBs 36
- command: 37
- 38 ■ Upgrading SIBs 38
- Replacing the Craft Interface 40
- Removing the Craft Interface 40
- Update Install Base 43
- DC Power Cable Specifications 46
- JUNOS References 49
- J-Web User Guide 50
- Hardware Documentation 50
- Documentation Feedback 54
- Requesting Technical Support 55
- Revision History 56
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