Cisco Power Supply Spare 640W DC Config 2 PWR-C2-640WDC -36VDC to -72VDC PWR-C2-640WDC Overview PWR-C2-640WDC= is 640W DC Config 2 Power Supply Spare. PWR-C2-640WDC= Specification PWR-C2-640 WDC= Specification Power Supply Rated Maximum 640W Total Output BTU (Note: 1000 BTU per hr = 293 W) 2188 BTU/hr, 640W Input-Voltage Range and Frequency (Note: plusmn,10% of Input-Voltage Range) -36VDC to -72VDC Input Current 21 - 10.5 A Output Ratings 12V @ 20.83A -54V @ 7.36A Output Holdup Time gt, 2ms@-48VDC Power-Supply Input Receptacles Terminal strip Power Cord Rating 20A @ 100VDC Physical Specifications (H x W x D): 1.58 X 3.75 X 11.75 in (4.0 x 9.5 x 29.8 cm) Weight: 2.75 lb (1.25 kg) Operating Temperature For the operating temperature ranges at various altitudes of AC and DC power supply module powered switches, see Table 1. Storage Temperature -40 to 158F (-40 to 70C) Relative Humidity Operating and Nonoperating Noncondensing 5 to 96% noncondensing Altitude 16,400 ft. (5,000 meters) MTBF Calculated MTBF must be greater than 300,000 using Telcordia SR-332, Method 1, Issue 3. Demonstrated MTBF is 500,000 hr (with 90% confidence level). EMI and EMC Compliance AC OK: Input power to the power supply is OK PS OK: Output power from the power supply is OK Safety Compliance For the operating temperature ranges at various altitudes of AC and DC power supply module powered switches, see Table 1. LED Indicators -40 to 158F (-40 to 70C) FAQ 1. Where do your products come from? All of our products are from Cisco/Huawei distribution , Cisco/Huawei partner directly. We are Cisco partner at local, with cisco verified certification. 2. If all equioments I can buy service from local cisco ? For all equipments you can buy service from local, because our goods are smart net free, all with clean serial number. 3. How to ship the goods? Lonrise work with DHL,FEDEX,UPS and TNT. Your order will be dispatched by express delivery door to door. 4. Whats your payment term? We always accept 10% advance payment. For long term cooperation, we can consider to apply credit accordingly. Related products PWR-C1-350WAC PWR-C1-440WDC PWR-C1-715WDC PWR-C1-1100WAC PWR-C2-250WAC PWR-C1-440WAC PWR-C2-640WAC PWR-C2-640WDC PWR-C2-1025WDC Sales: Yolanda Mob/Whatsapp: +8618258465246 Email: yolanda@lonriseequipment.com Skype: Yolanda-Lonrise