Chapter 3
Electrical Cards
3.6.5 DS3-12E and DS3N-12E Port-Level Indicators
You can find the status of the DS3-12E and DS3N-12E card ports using the LCD screen on the
ONS 15454 fan-tray assembly. Use the LCD to quickly view the status of any port or card slot; the screen
displays the number and severity of alarms for a given port or slot.
3.6.6 DS3-12E and DS3N-12E Card Specifications
Note
The I-Temp symbol is displayed on the faceplate of an I-Temp compliant card. A card without this
symbol is C-Temp compliant.
DS3-12E and DS3N-12E card specifications are listed below:
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October 2003
Input:
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Bit rate: 44.736 Mbps +/– 20 ppm
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Frame format: DS-3 ANSI T1.107-1988
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Line code: B3ZS
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Termination: Unbalanced coaxial cable
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Input impedance: 75 ohms +/–5%
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Cable loss: Max 450 ft 734A, RG-59, 728A/Max 79 ft RG-179
AIS: TR-TSY-000191-compliant
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Output:
Bit rate: 44.736 Mbps +/– 20 ppm
–
Frame format: DS-3 ANSI T1.107-1988
–
Line code: B3ZS
–
Termination: Unbalanced coaxial cable
–
Input impedance: 75 ohms +/–5%
–
–
Cable loss: Max 450 ft 734A, RG-59, 728A/Max 79 ft RG-179
–
AIS: TR-TSY-000191-compliant
–
Power level: –1.8 to +5.7 dBm (The power level is for a signal of all ones and is measured at a
center frequency of 22.368 MHz (+/-KHz) bandwidth.)
–
Pulse shape: ANSI T1.102-1988 Figure 8
–
Pulse amplitude: 0.36 - 0.85 V peak-to-peak
–
Loopback modes: Terminal and facility
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Line build out: 0 to 225 ft; 226 to 450 ft
Electrical interface: Connectors: BNC or SMB
Surge protection: GR-1089
Operating temperature: I-Temp (15454-DS3-12E-T and 15454-DS3N-12E-T): –40 to +65 degrees
Celsius
Operating humidity: 5 to 95%, noncondensing
Cisco ONS 15454 Reference Manual, R4.1.x and 4.5
DS3-12E and DS3N-12E Cards
3-17