Document type:
Title:
Revision date:
Revision:
User's Manual (MUT)
Mod. V895 16 Channel Leading Edge Discriminator
19/03/09
3
NPO:
Filename:
Number of pages:
Page:
00101/97:V895x.MUTx/03 v895_rev3.doc
25
12
2.4. External
connectors
The location of the connectors is shown in Fig. 2.1. Their function and electromechanical
specifications are listed in the following subsections.
2.4.1. INPUT connectors
INPUT CHANNELS:
Mechanical specifications:
16 LEMO 00 type connectors.
Electrical specifications:
negative polarity, 50 Ohm impedance, DC
coupling; input range: -5 mV
÷
-5 V; input
offset:
±
5
mV; 140 MHz maximum input
frequency.
VETO
INPUT:
Mechanical specifications:
1 LEMO 00 type connectors.
Electrical specifications:
standard NIM logic signal, high impedance,
15 ns minimum FWHM; leading edge of the
VETO signal must precede of at least 8 ns the
leading edge of the input and overlap
completely the input signal; the VETO signal
doesn’t act on TEST input.
TEST
INPUT:
Mechanical specifications:
1 LEMO 00 type connectors.
Electrical specifications:
standard NIM logic signal, high impedance,
5 ns minimum FWHM, 60 MHz maximum
input frequency.
2.4.2. OUTPUT connectors
OUTPUT CHANNELS:
Mechanical specifications:
4 Header 3M 3408-D202 type, 8+8 pin
connectors.
Electrical specifications:
Differential ECL level on 110 Ohm
impedance; pulse width adjustment from 5
±
1
ns to 40
±
5 ns FWHM.
Input/Output delay: 15.5
±
1.5 ns.
OR OUTPUT:
Mechanical specifications:
1 LEMO 00 type connectors.
Electrical specifications:
standard NIM logic signal, 50
Ω
impedance;
50 MHz maximum input frequency.