User Manual

ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: Description
Page 2-31
© 2004, ADC Telecommunications, Inc.
9 SPECIFICATIONS
Refer to Table 2-4 for the Digivance SMR LRCS system nominal specifications. All
specifications apply after a five minute warm-up period.
Table 2-4. 800/900 MHz SMR System Nominal Specifications
PARAMETER SPECIFICATION REMARKS
Optical - Host and Remote Unit
Fiber type 9/125, single-mode
Number of fibers required
With WDM
Without WDM
1
2
The wavelength division multi-
plexer (WDM) is an accessory
item.
Forward path wavelength 1550 nm
Reverse path wavelength 1310 nm
Optical transmit power output
Host Unit
Remote Unit
0 dBm
+2 dBm
Optical budget 25 dB
For optical BER of 10
–6
Optical Receive Input –15 dBm
Optical connectors Industry standard SC Host, remote, and WDM
Optical - Host and Remote WDM
Passband 1310 nm ± 20 nm
1550 nm ± 20 nm
Forward path insertion loss
Host WDM
Remote WDM
0.7 dB
0.3 dB
Does not include connector loss
Reverse path insertion loss
Host WDM
Remote WDM
0.3 dB
0.7 dB
Does not include connector loss
Isolation > 30 dB minimum
Return loss (Reflectance) < –50 dB All input ports
RF Forward Path - 800/900 MHz
System bandwidth 18 MHz
5 MHz
800 MHz transmit
900 MHz transmit
Frequency range 851–869 MHz
935–940 MHz
Gain of forward path
(Host input to Remote primary
antenna port)
85 dB with 35 Watt LPA At band center, room tempera-
ture, and 0 dB attenuation set-
ting. Includes power amplifier.
Gain flatness
Band flatness
Channel flatness
± 2.0 dB across freq. range
± 1 dB variation across any 1.25
MHz channel