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The front interface gives access to the Rx/Tx synchronization signal connectors, the two rotary switches, and 8 status LEDs.

Status LEDs

These 8 LEDs indicate the status of the different functions of the board:

Function ID

Function Name

Description

SL

SLAVE

ON , means all FPGAs in the chassis (Primary and secondary boards) are in Slave Mode



MA

MASTER

ON , means that the Primary FPGA of the chassis is in Master Mode (1)

5600

OP5600

ON, in a multi-chassis system, indicates that the SYNC input signal comes from one OP5600 or other legacy-compatible chassis, on the stereo jack connector.

7000

OP7000

ON, in a multi-chassis system, means that the SYNC input signal comes from one OP7000 chassis on the HD15 connector.

TX

TX_ACTIVE

ON means SYNC pulses are produced on the active OUT connector

RX

RX_ACTIVE

ON means SYNC pulses are received at the active IN connector

CU

CU

ON means that the active connectors are the In/Out HD15 or audio connectors

FO

FO

ON means that the active connectors are the In/Out optical fiber connectors

In the case of synchronization with a single OP7000, even configured as a Slave, the Master LED remains on despite everything, because the OP7000 must regenerate the combined synchronization pulse for other possible OP7000s to be synchronized.

The first LED will always be MASTER ON, and the others will have their SLAVE LEDs on.

Connectors

The first three connectors determine which of three (3) types of synchronization is used. Each connector is linked to two switches on the board, as shown in the table below. The last connector lets users select a chassis ID.

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