DS1200-3-002 Emerson Network Power, DS1200-3-002 Datasheet - Page 34

• Manufacturer Part Number: DS1200-3-002
• Description: POWER SUPPLY AC/DC 12V 1200W
• Manufacturer: Emerson Network Power
• Series: DS1200r

Specifications of DS1200-3-002

• Voltage - Output: 12V
• Number Of Outputs: 1
• Power (watts): 1200W
• Applications: Commercial
• Power Supply Type: Switching (Closed Frame)
• Voltage - Input: 180 ~ 264VAC
• Mounting Type: Chassis Mount
• 1st Output: 12 VDC @ 100A
• Size / Dimension: 11" L x 3.2" W x 1.57" H (279.4mm x 81.3mm x 39.9mm)
• Power (watts) - Rated: 1200W
• Operating Temperature: -10°C ~ 50°C
• Efficiency: 91%
• Approvals: CB, CE, cUL, EN, NEMKO, UL
• Line Regulation: ±5%
• Load Regulation: ±5%
• Input Voltage: 90 to 264V
• Output Voltage: 12V
• Input Frequency: 47 to 63Hz
• Screening Level: Commercial
• Operating Temperature Min Deg. C: -10C
• Operating Temperature Max Deg. C: 50C
• Mounting Style: Desktop
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 454-1271

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Rev.10.03.30_#0.1
I
C Clock Synchronization
DS1200-3 Series
Page 34
The DS1200-3 power supply might apply clock stretching. An addressed slave power supply may hold the
clock line (SCL) low after receiving (or sending) a byte, indicating that it is not yet ready to process more data.
The system master that is communicating with the power supply will attempt to raise the clock to transfer the next bit, but
must verify that the clock line was actually raised. If the power supply is clock stretching, the clock line will still be low
(because the connections are open-drain).
The maximum time out condition for clock stretching for DS1200-3 is 100 microseconds.