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4RF Aprisa XE Technisch document
4.

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