User manual

Wide Bank 28 DS3 - Release 2.4 July 2004 3-5
Technical Specifications
Specifications
Cable Compensation
 DS3 Power Level: For an all-ones transmitted pattern, the power in a 2 kHz band
(about 22.368 MHz) is –1.8 to +5.7 dBm, and the power in a 2 kHz band (about
44.736 MHz) is at least 20 dB below that in the 2 kHz band (about 22.368 MHz).
 DS3 Output Port: ±0.85 volts peak, adjustable for DSX-3 line buildout from 0 to 50
ft. or 50 to 450 ft.
 DS1 Output Port: ±3 volts peak adjustable for DSX-1 line build out from 0 to 660 ft.
in increments of 110 ft.
Management
 RS-232 DCE port (DB-9) for command line management
 Ethernet port for SNMP and Telnet sessions, for TL1 transport services over TCP,
and for NetworkValet management sessions
 RS-232 port for TL1 transport services
Alarms
External alarm contacts for visible or audible alarms or alarm reporting systems:
 Output Alarm: Relay Contacts
 Output State: Normally Open or Normally Closed
 Two Outputs: Critical Alarm and Major/Minor Alarm
 Maximum Current: 200 mA
 Maximum Voltage: 56 VDC
 Control Input: CPU reset, Alarm Cut Off (ACO) switch on the front control panel, or
aco CLI command.
DS3 Transmit Clock Source
 Line - recovered from DS3 network receive signal
 Internal - on-board Stratum 4E clock source, 44.736 Mbps ±20 ppm
 External - external BNC input at 44.736 Mbps
- Input Impedance: 75 Ohms
- Amplitude: Minimum 250 mV rms sinusoid; Maximum 1.250 V rms sinusoid