User Manual Part 1

Install the Host

FlexWave Prism Host, Remote and EMS 5.1 System Reference Page 73

3.3.7 LC Attenuator

To meet 3Gbps optical transmission requirements, the long reach transceivers (SFPs)

must be used. SFPs have the following specifications:

•• Launch: 0dBm

•• Normal Operation: -9dBm maximum to -27dBm minimum

•• Overdrive: >-9dBm

•• Underdrive: <-27dBm

•• RX No Light condition: <-34dBm

The receiver’s specification is -9 to -27dBm. Based on typical fiber runs, there's

usually only a few dB of loss, so the 15dB LC attenuator (Figure 3-2) ships with each

Host to put the receive level in the optimum receive range.

Figure 3-2. LC Attenuator

There is an option of ordering the WDM with a fiber pigtail. The document for the WDM

option describe

s using the LC attenuator option and requires an additional fiber patch

cord.

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