Cisco ICS 7750 System Description, 2.6.0
Summary of Power and Cooling System Features
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Summary of Power and Cooling System Features

Table Of Contents

Summary of Power and Cooling System Features

Cisco ICS 7750 Chassis, Backplane, and Fan Tray

Key Features

Technical Specifications

Power Supply Module

Key Features

Technical Specifications

Power Protection Component

Uninterruptible Power Supply

Cisco RPS 300

Feature Summary

Technical Specifications


Summary of Power and Cooling System Features


The Cisco ICS 7750 power and cooling system includes the following components:

Cisco ICS 7750 Chassis, Backplane, and Fan Tray

Power Supply Module

Power Protection Component

Cisco ICS 7750 Chassis, Backplane, and Fan Tray

The Cisco ICS 7750 chassis is compact and designed for installation in a standard 19-inch rack or on a desktop. The backplane supports the standard 6U Eurocard form factor. The fan tray includes four fans to cool the cards and monitor the chassis temperature. The fan speed is controlled to accommodate a change in temperature. Figure 3-1 shows the Cisco ICS 7750 chassis with a power supply module installed.

Figure 3-1 Cisco ICS 7750 Chassis


Note The Federal Communications Commission (FCC) registration number of the Cisco ICS 7750 is 5B1USA-40188-MF-E. The FCC number is also written on the label affixed to the bottom of the chassis.


Key Features

The chassis, backplane, and fan tray have the following key features:

Two fixed, single-wide slots for the system alarm processor (SAP) card and the system switch processor (SSP) card.

Six interchangeable slots for system processing engine (SPE), multiservice route processor (MRP), and analog station interface (ASI) cards.

Two slots for the power supply modules.

Support for the standard 6U Eurocard form factor.

All cards are hot-swappable.

Hot-swappable fan tray, accessible from the front of the chassis.

Fans are monitored and controlled through the SAP card.

Grounding lug for grounding the chassis to the wall outlet, optionally including the uninterruptible power supply (UPS).

Technical Specifications

Table 3-1 lists the technical specifications for the Cisco ICS 7750 chassis.

Table 3-1 Chassis Technical Specifications 

Type
Description

Dimensions

Height: 15.75 in. (40.005 cm)
Width: 17.25 in. (43.815 cm)
Depth: 12.5 in. (31.75 cm)

Weight

42 lb (18.9 kg) with 1 MRP, 1 SPE, 1 SSP, 1 SAP (4 cards total), and 1 power supply installed

Power requirements

100 to 240V
47 to 63 Hz
3A

Power dissipation

275W maximum

UPS

Input voltage: 93 to 132 VAC
Frequency: 47 to 63 Hz
Output: 1050W/1400 VA
Run time: 8 minutes minimum
Optional external battery pack: approximately 30 minutes run time each

Acoustic noise

Operating: 48 dBA maximum

Temperature

Operating: 32 to 104ºF (0 to 40ºC)
Nonoperating: -4 to 149ºF (-20 to 65ºC)

Relative humidity

Operating: 10 to 85%
Nonoperating: 5 to 95%

Altitude

Operating: 10,000 ft (3000 m)
Nonoperating: 15,000 ft (4570 m)

Shock

Operating: up to 27 in. per second (0.69 m per second)
Nonoperating: up to 35 G

Vibration

0.35 Grms from 3 to 500 Hz

Safety

UL 1950, Third Edition
CAN/CSA 22.2 No. 950-95, Third Edition

Emissions

CFR 47 part 15:1998
(Class A, radiated and conducted emission)

Standards

FCC Part 68
CS-03

Mounting options

19-in. rack

Standalone (desktop)


Power Supply Module

The Cisco ICS 7750 chassis has two slots for power supply modules. At least one power supply module is required; a second power supply module can be added for redundant power. With two power supply modules, one module acts as the primary power supply, and the other power supply is a backup in case the primary fails. Only one module supplies power to the system at any time. Figure 3-2 shows the power supply module.

Figure 3-2 Power Supply Module

Key Features

The power supply module has the following key features:

Automatic remote enable/disable signal: Ensures that the power supply remains off until fully seated and turns the power supply off during removal.

Operates as a single or redundant module.

Hot-swappable, accessible from the front of the chassis.

Current sharing when two power supplies reside in a chassis (the power supplies do not load share).

Four DC voltage outputs: +3.3V, +5V, +12V, and -12V.

AC input range of operation: 100 to 240 VAC.

IEC 320-C14 AC input receptacle.

Overvoltage protection: Power supply shuts down if the power output exceeds the nominal output by 120 percent.

Automatic thermal shutdown: If the ambient temperature is too high, the power supply shuts down automatically; when the ambient temperature returns to a safe operating range, the power supply restarts automatically.

Automatic redundancy when two power supplies are installed.

Technical Specifications

Table 3-2 lists the technical specifications for the power supply module.

Table 3-2 Technical Specifications for Power Supply Module 

Type
Description

Dimensions and weight

10 lb (4.5 kg)

Temperature

Operating: 23 to 113ºF (-5 to 45ºC)
Nonoperating: -40 to 185ºF (-40 to 85ºC)

Relative humidity

Operating: 10 to 90% (noncondensing)
Nonoperating: 10 to 95% (noncondensing)

Thermal shock

Operating: -5 to 45ºC, 0.5ºC/minute
Nonoperating: -40 to 85ºC, changeover time between 2 and 3 minutes

Altitude

Operating: Up to 10,000 ft (3,000 m)
Nonoperating: Up to 15,000 ft (4,570 m)

Vibration

Operating: 0.41 Grms from 3 to 500 Hz with spectral break points of 0.0005 G2/Hz at 10 Hz and 200 Hz and 5 dB/octave roll-off at each end, 2 hours per axis

Nonoperating: 1.12 Grms from 3 to 500 Hz with spectral break points of 0.0065 G2/Hz at 10 Hz and 200 Hz and 5 dB/octave roll-off at each end, 30 minutes per axis


Power Protection Component

For complete power protection for the Cisco ICS 7750 system, a UPS is available for the Cisco ICS 7750 chassis. The Cisco redundant power system (RPS) 300 is available for the Catalyst switches that are connected to the Cisco ICS 7750.

Uninterruptible Power Supply

A UPS is an external device that maintains power to the system if the power supply fails. The appropriate UPS for the Cisco ICS 7750 is the APC Smart-UPS, manufactured by American Power Conversion (APC) Company. The APC Smart-UPS has the following features:

It prevents blackouts, brownouts, sags, and surges from reaching the Cisco ICS 7750.

It filters small utility line fluctuations.

When large power disturbances occur, it internally disconnects from the utility line and supplies power from its internal batteries, returning to the utility line only when a safe level of power is restored.

It provides power to the Cisco ICS 7750 and Catalyst switches during power disturbances.

When connected to a serial port on the SAP card, the UPS can be monitored for alarms.

Using the inline power feature, Catalyst switches that are protected by a UPS provide power to the IP Phones, which are then unaffected by power disturbances.

A UPS has battery power that keeps equipment running for a certain period of time. Up to five battery packs can be added to a UPS for additional power. Also, the UPS can be configured to handle Simple Network Management Protocol (SNMP) management, remote monitoring, and alarm reporting.

The UPS can handle a maximum load of up to 1400 VA (1050W) for all equipment that is connected to it. For information on the APC Smart-UPS, refer to the user manual that comes with the APC UPS.

Cisco RPS 300

The Cisco RPS 300 provides a fully redundant power source connection for up to six Catalyst switches (see "Features of LAN-Based Switching Technologies," for additional information about compatible switches). When a power failure occurs in one of the switches, the RPS 300 automatically supplies power to the switch. The RPS 300 can power only one switch at a time. For complete redundancy, you should connect each switch in the Cisco ICS 7750 to a separate RPS 300.

The RPS 300 has one AC input power connector and six DC power output connectors. Figure 3-3 shows the back panel of the Cisco RPS 300.

Figure 3-3 Back Panel of Cisco RPS 300

Feature Summary

The RPS 300 has the following key features:

Redundant support for the Catalyst 3524-PWR-XL switch

Provides a redundant power connection for up to six switches, powering one switch at a time

One AC input power connector

Six 300W DC output power connectors

SNMP support of error messages

Technical Specifications

Table 3-3 lists the technical specifications for the RPS 300.

Table 3-3 Technical Specifications for the RPS 300 

Type
Description

Dimensions

Height: 1.75 in. (4.45 cm)
Width: 17.5 in. (44.45 cm)
Depth: 12 in. (30.48 cm)

Weight

10.5 lb (4.7 kg)

Temperature

Operating: 32 to 113ºF (0 to 45ºC)
Nonoperating: -4 to 149ºF (-20 to 65ºC)

Relative humidity

Operating: 10 to 85% (noncondensing)
Nonoperating: 5 to 95% (noncondensing)

Altitude

Operating: Up to 10,000 ft (3,000 m)
Nonoperating: Up to 15,000 ft (4,570 m)

AC input voltage

85 to 264 VAC
50 to 60 Hz

Power consumption

Total: 144W per 48 VDC output and 156W per 12 VDC output
Maximum for both outputs: 300W, continuous
Per channel: 156W per channel maximum

Safety

UL 1950/CSA 22.2 No. 950
IEC 950/EN 60950
AS/NZS 3260, TS001
CCEE

EMI

FCC Part 15 Class A
EN 55022 Class A
VCCI Class A
AS/NZS 3548 Class A
CE
BSMI
CCIB approval pending
NOM approval pending