Specifications

System Specifications 3-21
Cisco 7513
Power Supply Requirements
The Cisco 7513 contains either one 1200W AC-input power supply or one 1200W DC-input power
supply. An optional second power supply, identical to the first, can be added for redundant power.
These power supplies are automatically load sharing and redundant, which means a second power
supply can be installed or replaced without interrupting system operation. Each power supply should
be connected to a separate AC or DC source, so that, in case of an input power line or power supply
failure, the second power supply maintains uninterrupted system power. Ideally, an uninterruptible
power source (UPS) would be available for each AC-input power supply.
Special Power Requirements for the Cisco 7513
The Cisco 7513 requires that a 20-amp (A) service be available at your site.
Wiring codes prevent 20A plugs from being used with most equipment rack power strips. The
installation must comply with all applicable codes. The ground bond fastening hardware should be
of compatible material and preclude loosening, deterioration, and electro chemical corrosion of
hardware and joined material. Installation is approved for use with copper conductors only.
Attachment of the chassis ground receptacles to the central office or other interior ground system
should be made with a Number 6 AWG copper ground conductor as a minimum.
The Cisco 7513 chassis employs two threaded, M4 x .7 chassis ground receptacles. These
receptacles are intended to be bonded directly to the central office or other interior ground system,
and are located on each side of the rear of the chassis. The chassis ground receptacles require M4
bolts and locking hardware, which are not included.
Follow these precautions and recommendations when planning power connections to the router:
• Check the power at your site before installation and periodically after installation to ensure that
you are receiving clean power. Install a power conditioner if necessary.
• Provide redundant power sources for each power supply installed in the chassis.
1. VAC = volts alternating current.
2. Each AC-input power supply operating at 120 VAC requires a dedicated 20A service and a 20A receptacle.
3. VDC = volts direct current.
Frequency 50/60 Hz
AC-input cable 12 AWG (American Wire Gauge), with three-leads, an IEC-320 receptacle on
the power supply end, and a country-dependent plug on the power source end
DC-input voltage and current –48 VDC
3
nominal, at 35 amps (A) in North America
(–60 VDC at 35A in the E.C.)
DC-input cable 8 AWG recommended minimum, with three conductors rated for at least 194 F
(90 C)
DC voltages supplied and
maximum, steady-state current
(AC- and DC-input)
+5.2 VDC @ 75 A
+12 VDC @ 15A
–12 VDC @ 3A
+24 VDC @ 5A
Airflow and noise level Through chassis by variable-speed blower; 62 to 70 dBA
Temperature 32 to 104 F (0 to 40 C), operating; – 4 to 149 F (– 20 to 65 C), nonoperating
Relative humidity 10 to 90%, noncondensing
Table 3-19 Cisco 7513 Physical Specifications (Continued)
Description Specification