6

ORTEL a Division of EMCORE

Data Sheet, Rev. 0

System 8000 Fiber-Optic Interfacility Links

March 6, 2003

C-Band, Extended C-Band, X-Band, and Ku-Band Interfacility Link Specifications

These links carry the main transmit and receive signals between the equipment room and the antenna site. Each

fiber-optic path carries one entire polarization. One fiber is used in single strand links and two are used in 1:1

redundant paths. Or, the path may share a fiber-optic link with another path in 1:2 redundant configurations. Each

link is designed to meet and exceed all of the requirements for use in Intelsat Standard A earth stations, even

under conditions of heaviest signal loading.

Typical C-Band Performance

Table 6. C-, Extended C-, X-, and Ku-Band Interfacility Link Specifications: Uplink Path, 8810A Tx/8820A

Rx;

Downlink Path, 8810B Tx/8820B Rx

Parameter

Specification

Symbol

Min

Typ

Max

Unit

Passband:

8810A Tx/8820A Rx

8810A-E08 Tx/8820A-E03

8810B Tx/8820B Rx

8810B-E05 Tx/8820B-E06

—

5.845

5.845

3.6

3.4

—

—

—

—

6.425

6.725

4.2

4.2

GHz

GHz

GHz

GHz

Optical Loss Budget:

1310 nm

1550 nm

—

—

6

12

—

—

dB

dB

Nominal RF Input at Max Input Gain:

8810A Tx/8820A Rx

8810B Tx/8820B Rx

—

—

–15

–30

—

—

dBm

dBm

Link Gain (–6 dB With Redundancy Switching):

8810A Tx/8820A Rx

8810B Tx/8820B Rx

G

–13

–11

—

—

7

14

dB

dB

Flatness

—

—

—

±0.2/48

±0.7/500

—

—

dB/MHz

dB/MHz

Gain Slope

—

—

0.02

—

dB/MHz

Gain Stability at Constant Temperature

—

±0.15/24

—

dB/hr

Noise Figure at Max Input Gain

(Add 4 dB with Redundancy Switching):

8810A Tx/8820A Rx

8810B Tx/8820B Rx

NF

—

—

32

20

—

—

dB

dB

Spur-Free Dynamic Range:*

8810A Tx/8820A Rx

8810B Tx/8820B Rx

SDFR

—

—

98

96

—

—

Group Delay:

Peak-to-Peak

Linear

Parabolic

—

—

—

—

0.5

0.02

0.01

—

—

—

ns

ns/MHz

Input/Output Impedance

Z

—

50

—

Ω

Input/Output VSWR

—

—

1.35:1

—

—

* Spur-free dynamic range (SFDR) = 2/3(IP3 – NF + 173.8) dB/Hz