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3.1 7870 Interfacility Link Specifications
7870 Interfacility Link Installation and User’s Guide page 17
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3 Product Specifications
3.1 7870 Interfacility Link Specifications . . . . . . . . . . . . . . . . . . . . . . . 17
3.2 Model Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.3 7870 Interfacility Link Pinouts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.3.1 Transmitter Pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.3.2 Receiver Pinouts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.4 7180M Chassis Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.4.1 7180M Alarm Connector Pinouts [J12] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4.2 7180M Monitor Connector Pinout [J13]. . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.4.3 7180M and Redundancy Switching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.1 7870 Interfacility Link Specifications
RF Specifications
Frequency range 10 - 200 MHz
Flatness 10 – 200 MHz @ unity gain ± 0.4 dB [typical]
Flatness @ 36 MHz ± 0.2 dB [max.]
CNR 45 dB @ 36 MHz
Noise Figure [50 Ω]
@ unity gain / 1 dB optical loss
@ unity gain / 8 dB optical loss
1
28 dB [typical]
35 dB [typica]
Noise Figure [75 Ω]
@ unity gain / 1 dB optical loss
@ unity gain / 8 dB optical loss
1.
30 dB [typical]
37 dB [typica]
OIP3 @ -10 dBm in / 0 dBm out 24 dBm
Group delay variation @ 20 - 200 MHz <1 nSec
Input /output impedance 75 Ω [50 Ω optional]
Third order modulation
- 50 dBc with 2 equal carrier, total input
power -5 dBm
Input signal range [total power] -25 to - 5 dBm
Output signal range [total power] -25 to - 5 dBm
Maximum input without damage +10 dBm
Receiver gain control Manual
RF connector
BNC female [default]
F, and SMA [optional]
Test port coupling 20 dBc
Table 3 7870 Interfacility Link Specifications
1. @ 10 dB Link Gain