User's Manual

ADCP-75-110 • Issue 2B • July 2001
Page 13
© 2001, ADC Telecommunications, Inc.
Table 4. Terms and Definitions, continued
TERM DEFINITION
Digital Remote Unit The unit that interfaces the in-building user to the Digivance optical
transport.
Digitized RF Signal The RF signal in a digitized form.
Forward Path Signal A signal that travels from the base station to the cell phone.
Major Alarm An alarm condition that applies when any fault (except high
temperature) occurs.
Minor Alarm The alarm condition that applies when a high temperature condition
occurs. (> 50º C/122º F)
Mute To force a forward path RF signal to a “no signal” state.
Normal State The operating state after power-up is completed and no faults are
detected.
Port An RF, optical, or electrical interface point.
Port Alarm A fault that affects only the unit or units connected to that port.
Indicates no optical input to port.
Power-Up State The period between the application of power to a unit and the normal
state. This period includes time for circuit stabilization and
initialization operations.
Reverse Path Signal A signal that travels from one or more cell phones to the base station.
Transport Alarm Signal An alarm signal transported over the fiber optic link.
Unit Alarm A fault within a unit that usually affects all connected ports.
1.6 Specifications
Refer to Table 5 for the Digivance ICS system specifications. All specifications apply after
five minute warm-up period.
Table 5. System Specifications
PARAMETER SPECIFICATION REMARKS
Optical – All Units
Fiber type Multimode 50 or 62.5 micron core Two fibers per link
Maximum Fiber Length 500 m (1,641 ft)
750 m (2461 ft)
With 62.5 micron core
With 50 micron core
Optical Output Power –10 to +4 dBm
Optical Wavelength 850 nm
Environmental
Operating Temperature 0º to 50º C (32º to 122º F)
Storage Temperature –30º to +70º C (–22 to 158º F)
Humidity No condensation
Weather resistance Indoor installation only
(continued)