R2DBE system setup

Pre-Checks

• Check that the 1pps is connected to all R2DBE units (frontside)
• Check that the IFs are connected to the Block Down Converter (BDC) with RCP and LCP as labeled on the backside
• Check that the 10MHz signal is connected to the clock synthesizer unit
• Check that the 10MHz signal is connected to the BDC unit
• Check that the both IF input pins of all R2DBE units (frontside) are connected by cable
• Check that all R2DBE units are connected by ethernet (PPC net port)  to the network hub box (backside)
• Check that the noise generator unit is connected by ethernet to the network hub box (backside)
• Check that all mark6 units are connected by ethernet cable to the the network hub box (backside)
• In case you want to inspect the R2DBEs autocorrelation spectra make sure you insert a tone into the noise generator unit (backside)

Startup sequence

1. power on pv-mark6-1 and pv-mark6-2
2. power on the clock synthesizer unit
3. power on the BDC
4. power on the noise generator
5. power on the R2DBEs

Verify startup

• log into pv-mark-1 as user oper. If logging-in does not work the mark6 machine is probably stuck in booting. Connect a display and keyboard and check.

ssh pv-mark6-1 -l oper -X
ssh pv-mark6-2 -l oper -X

• do the same with pv-mark6-2
• log into pv-mark6-1 as user oper. Verify that all the R2DBEs units have booted up by trying an ssh connection:

ssh r2dbe-1 -l root
ssh r2dbe-2 -l root
...
exit from r2dbe-1, r2dbe-2, ...

if one of the units does not boot consult the Troubleshooting section below.

Configuring the R2DBEs

• log-into pv-mark6-1 as user oper
• initialize all the R2DBE units by running:

start-r2dbe-1
start-r2dbe-2
...

Troubleshooting