4RF Aprisa XE Document technique - Page 10

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Network Clocking Examples

4.1.

Single Link

Figure 10 : Single link network diagram

The above network is the simplest network possible. One radio is set to "Internal" clocking and the other

"Link". The radio set to internal will generate an internal clock for timing. The radio set to "Link" will use the

clock extracted from data stream passed over the RF link.

Back to back links – Unframed E1

4.2.

Figure 11 : Back to back unframed E1 network diagram

The above network uses a repeater site to pass the radio traffic between three sites. At the repeater site

the radios are interlinked via Unframed E1. As clocking information is carried across this E1 circuit the

next radio pair can be set to Internal and its partner Link.

Aprisa XE Clocking Technical Paper

10 | 15

Issued by: 4RF Customer Services 15 January 2009