ADCP-75-210 • Issue 1 • March 2007

Table 7. Synchronous Interface Module Faceplate Components

REF #

DESIGNATION

DEVICE

FUNCTIONAL DESCRIPTION

7

F/O

Dual-LC connectors

Fiber/Optics. Optics connector on SFP optical transceiver

 

 

 

 

8

OP IN

Tri-color LED

Optical In. Indicates input status of the SFP interface: not

 

 

(green/yellow/red)

enabled (off), good (green), degraded (yellow), or bad output

 

 

 

signals (red)

 

 

 

 

9

OP OUT

Tri-color LED

Optical Out. Indicates output status of SFP interface: not

 

 

(green/yellow/red)

enabled (off), good (green), degraded (yellow), or bad fram-

 

 

 

ing, bad parity, no signal, or no signal lock (red)

 

 

 

 

1.7.5Small Form-Factor Pluggable (SFP) Optical Transceiver

The Small Form-Factor Pluggable (SFP) Optical Transceiver, located on the SIF module and shown in Figure 12, provides the optical interface between the Hub equipment and the RAN hardware. The SFP has a laser transmitter and an optical receive detector.

The Digivance NXD system uses industry standard SFP optics which offer a number of configuration options depending on the requirements of the project. The SFP modules are available separately and may or may not be installed in the SIF depending on the configuration ordered. The SFP module is specified as up to two per RAN and is able to support two bands with receive diversity.

The standard SFP module has an optical budget of 9 dB. The SFP module is factory and field replaceable with optical transceivers having extended optical budgets up to 26 dB or Coarse Wave-Division Multiplexing (CWDM) optical wavelengths.

21316-A

Figure 12. Small Form-Factor Optical Transceiver

1.7.6RAN Down Converter (RDC or RDC2) Module

The RAN Down Converter (RDC or RDC2) Module is a cPCI electronic module housing a dual-diversity wideband RF receiver. This module takes PCS, Cellular, SMR A, and SMR B signals from a primary and secondary antenna (via the appropriate multicoupler) and converts the signals to Digitized Intermediate Frequency (DIF).

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© 2007, ADC Telecommunications, Inc.