Tonite the BCM5 time constant is ~28 microseconds. (Figure 1 shows BCM2 on channel 1, and BCM5 on channel 2.)
Last nite the BCM5 time constant was ~48 microseconds. (Figure 2, taken from hclog 214114 for convenience, shows MD1- and BCM5 from last nite.)
The 1/e time constant goal for the trailing edge of the BCM signals to match the MD is 7-8 microseconds. The BCM5 time constant is moving in the right direction but it has a ways to go.
Figure 3 shows an undershoot on the LumiDS1 signal presumably related to the new attenuators. MD1- on ch1, LumiDS1 on ch2, BCM2 on ch3, and BCM5 on ch4 (missing). BCM5,6 were unplugged downstairs at the time and later restored.
Figure 1: BCM2 and BCM5 tonite
Figure 2: MD1- and BCM5 last nite
Figure 3: note undershoot on ch2 (blue)
