SMC Networks SMC7824M/FSW Bedienungsanleitung Seite 50
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I
NSTALLING
THE
S
WITCH
3-10
Connecting to a Power Source
This switch supports both AC and DC power conversion modules.
Connecting DC Power
When a -48 VDC power conversion module is installed in the switch, an
external DC power supply must be connected to the DC power
connection on the left side of the front panel.
Warning: Before wiring the DC plug or connecting power to the switch,
ensure that power to the feed lines is turned off at the supply
circuit breaker or disconnected from the power bus.
Notes: 1. To provide adequate circuit protection between the DC
power supply and the switch, all intermediate wiring and
circuitry should be rated to carry a load at least two times the
maximum rating for this switch (see “Power Supply” on
page C-2).
2. The wiring between the DC power supply and the switch
must be stranded copper wire within the range of 10 to 24
AWG.
3. Wiring for the power input terminals on the switch are
described below. Wiring of the DC power supply terminals
depends on the equipment in use on the local site, but
should be wired in such a way as to meet the input
requirements shown in Figure 3-7 “DC Plug Connections”
on page 3-12. The wiring should also be color coded
according to local standards to ensure that the input power
and ground lines can be easily distinguished.
4. When using two power conversion modules with the switch,
either AC or DC modules can be used – both AC, both DC,
or one AC and one DC.
- TigerAccess 1
- Installation Guide 3
- Trademarks: 4
- COMPLIANCES 7
- Safety (EEC) 8
- LASERGER 9
- DER KLASSE I 9
- Power Cord Safety 10
- OMPLIANCES 11
- PSE Alarm 12
- War nings (in German) 13
- APPENDICES: 17
- Overview 21
- MgmtMgmt 22
- Description of Hardware 23
- 1000BASE-SX (SMCBGSLCX1) 25
- 1000BASE-LX (SMCBGLLCX1) 25
- 1000BASE-ZX (SMCBGZLCX1) 25
- Figure 1-3 Fan Tray 28
- Power Modules 29
- Features and Benefits 31
- Fiber-To-The-Home (FTTH) 33
- Connection Examples 34
- Downlink Fiber Connections 35
- Uplink Connections 36
- Management Connections 37
- Private VLAN Connections 38
- Application Notes 39
- Selecting a Site 41
- Ethernet Cabling 42
- Equipment Checklist 43
- Mounting 44
- Desktop or Shelf Mounting 45
- NSTALLING 46
- Grounding the Chassis 49
- Connecting to a Power Source 50
- ONNECTING 51
- -48VDC/Ground (Source A) 52
- Return/24VDC A)(Source 52
- -48VDC/Ground B)(Source 52
- Return/24VDC B)(Source 52
- Wiring Map for Serial Cable 54
- Connecting to the Alarm Port 55
- Wiring Map for Alarm Cable 56
- Connecting Network Devices 59
- Twisted-Pair Devices 59
- ONNECTIONS 60
- Network Wiring Connections 61
- Fiber Optic Devices 62
- Connectivity Rules 64
- ONNECTIVITY 65
- ONNECTION 67
- ROUBLESHOOTING 69
- Power and Cooling Problems 71
- Installation 71
- In-Band Access 71
- Crossover Wiring 76
- 1000BASE-T Cable Requirements 78
- Fiber Standards 79
- Physical Characteristics 81
- HARACTERISTICS 82
- Switch Features 83
- Management Features 83
- Standards 84
- Compliances 84
- Extender Modules 85
- APPENDIX D 87
- GERMAN INSTRUCTIONS 87
- Rack-Montage 88
- Das Erden des Gehäuses 89
- (Grounding the Chassis) 89
- Anschluss an eine Stromquelle 90
- -48VDC/Erdung (Quelle A) 92
- Zurück/24VDC A)(Quelle 92
- -48VDC/ B)(Erdung Quelle 92
- Zurück Quelle/24VDC B)( 92
- NSTRUCTIONS 94
- NFORMATION 95
- Glossary-1 97
- Glossary-2 98
- Glossary-3 99
- Glossary-4 100
- Glossary-5 101
- Glossary-6 102
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