CHAPTER 1 - NOTES ON DEVICE SAFETY
ZEISS
User Interface
LSM 880
34
000000-2071-466
11/2014 V_05
10.4
External Connectors on BiG.2
In the rear of the BiG.2 module, two SMA
connectors are available which deliver the signals
of both GaAsP PMT detector channels (see
Fig. 24/
4
).
The signals are always provided both to be
registered by the LSM system and by an external
device (i.e. electronics for FLIM) which is linked to
these connectors.
Using a P&C filter cube with a long pass dichroic
projects the longer wavelength range of the
emission spectrum to channel 2 and the shorter
range of the emission spectrum to channel 1.
The assignment of the connectors is as follows:
Name
BiG.2
Meaning
Power
(Fig. 24/
1
)
12-pin LEMO ECJ-2B
Power supply through main electronics unit
LVDS
(Fig. 24/
2
)
14-pin MDR
Main communication link
Sub-LVDS
(Fig. 24/
3
)
14-pin MDR
Communication to optional module
Ch1/Ch2
(Fig. 24/
4
)
SMA
Amplified PMT signal (inverted) R
i
= 50
Ω
BW ~ 200 MHz
V
out
(max) = +5V
Gain/Amplification = 42,3 (32,5dB)
Fig. 24
Rear view BiG.2 module
Fig. 25
Signal transfer scheme from PMT to
SMA connector
