DC Power Circuit Breaker Requirements for the SRX5800 Services Gateway
If you plan to operate a maximally configured DC-powered services gateway with standard-capacity power
supplies, we recommend that you provision at least 116 A (58 A per feed) @ –48 VDC (nominal) for the
system. Use a customer site circuit breaker rated according to respective National Electrical Code and
customer site internal standards to maintain proper level of protection for the current specified above.
If you plan to operate a maximally configured DC-powered services gateway with high-capacity power
supplies, we recommend that you provision at least 208 A (104 A per supply) @ –48 VDC (nominal) for
the system. This is maximum current draw at –48 VDC when two power supplies are providing the power
to the system and the redundant power supplies are not supplying power or not present. Use a customer
site circuit breaker rated according to respective National Electrical Code and customer site internal
standards to maintain proper level of protection for the current specified above.
If you plan to operate a DC-powered services gateway at less than the maximum configuration, we
recommend that you provision a circuit breaker according to respective National Electrical Code and
customer site internal standards to maintain proper level of protection for the current specified above or
each DC power supply rated for at least 125% of the continuous current that the system draws at –48
VDC.
DC Power Source Cabling for the SRX5800 Services Gateway
shows a typical DC source cabling arrangement.
Figure 22: Typical DC Source Cabling to the Services Gateway
The DC power supplies in slots PEM0 and PEM1 must be powered by dedicated power feeds derived
from feed A, and the DC power supplies in slots PEM2 and PEM3 must be powered by dedicated power
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Содержание SRX 5800
Страница 1: ...SRX5800 Services Gateway Hardware Guide Published 2020 02 10 ...
Страница 23: ......
Страница 30: ...Figure 2 Rear View of a Fully Configured AC Powered Services Gateway Chassis 31 ...
Страница 111: ...LEDs 112 ...
Страница 121: ...Port and Interface Numbering 122 ...
Страница 127: ...Port and Interface Numbering 128 ...
Страница 161: ......
Страница 179: ... One SRX5K MPC IOC2 Modular Port Concentrator with two Modular Interface Cards MICs 180 ...
Страница 180: ... One SRX5K 40GE SFP I O card IOC 181 ...
Страница 205: ......
Страница 261: ......
Страница 324: ...c Upload the configuration to RE2 from the USB device 325 ...
Страница 365: ...Figure 143 Installing an SPC 366 ...
Страница 367: ...368 ...
Страница 422: ...5 CHAPTER Troubleshooting Hardware Troubleshooting the SRX5800 425 ...
Страница 423: ......
Страница 457: ......
Страница 473: ...475 ...
Страница 476: ...Restricted Access Area Warning 478 ...
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Страница 496: ...Jewelry Removal Warning 498 ...
Страница 499: ...Operating Temperature Warning 501 ...
Страница 509: ...DC Power Disconnection Warning 511 ...
Страница 513: ...DC Power Wiring Sequence Warning 515 ...
Страница 516: ...DC Power Wiring Terminations Warning 518 ...
Страница 519: ...DC Power Disconnection Warning 521 ...
Страница 523: ...DC Power Wiring Sequence Warning 525 ...
Страница 526: ...DC Power Wiring Terminations Warning 528 ...