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7 How to connect to UniBoard

Minimal connections see Error! Reference source not found. and Error! Reference source not found. for

the location of the connections are:

Connection

Power

Clock

JTAG

Ethernet

In Error! Reference source not found. the back side is shown. Error! Reference source not found.

shows more details about the connections which have to be made to power up the board.

48V input remark:

UniBoard

should be connected with the +48V-connection to the pin in the middle of connector P31 and the GND-

connection to the left and right pins of P31.

7.1 Ethernet control

Up to four cables can be connected to UniBoard. Standard CAT6 10/100/1000BASE-T cables can be used.

7.2 PPS-input

For the pulse per second input (PPS) a simple pulse generator like the Agilent 33250A can be used. The

setting depends on the firmware used. For the test image a pulse with an edge time of 5ns, a pulse width of

5ms and a period of 1s can be used. This pulse generator can be locked to the clock through the 10MHz

reference input.

7.3 Fuses

On UniBoard

, direct behind the power connector a fuse is placed. The fuses is 10A fast acting Littlefuse 154

Series type, with part number 0453010. In Figure 2 the location of the fuses are shown.

UniBoard

8 / 16

Table 5 UniBoard

Side

Back side

Front side

has an isolated 48V power input. This means that a positive 48V power supply

10A fuse

Figure 2 Fuse on UniBoard

Manual

connectors

Specification

Isolated 48V DC

200MHz

Altera pinning

Standard RJ45

Doc.nr.:

Rev.:0.1

DESP

Date:11/05/2015

Class.:

ASTRON-IS-036 1.0