SIGNALS
Button Inputs
BUTA
Button inputs A, B, C, and D. Impedance 50
Ω
.
BUTB
See Algorithms & Polarity Conventions, this manual, for buttons assignment.
BUTC
BUTD
Auxiliary fast signals
RFOUT
RF signal output. Reserved for future use.
LOIN
Input for external Local Oscillator. On option only.
Nominal power 0 dBm, range -8 dBm...+6 dBm. Internally terminated in 50
Ω
.
External Local Oscillator option not compatible with on-board LO.
GATE
External fast NIM gate. Only with option BPM-FG.
Multiplexer GaAs switch closes only during GATE.
GATE is NIM signal -20mA in 50
Ω
load.
Gate width
≥
20 ns.
Common external commands
Common external commands are commands which are common to all BPM modules in a BPM
chassis.
Note:
When no external commands are applied, the BPM default mode is:
• Closed orbit measurement
• Sampling frequency as given by the internal clock
• Automatic gain control
SBS*
Single Button Sampling mode. TTL input.
Default value: high = SBS mode not enabled.
BADD0*
Button addresses. TTL input. Active only when SBS mode is enabled.
BADD1*
BADD1
BADD0
Button A
high
low
Button B
low
low
Button C
high
high
Button D
low
high
Default value: Button C
PHRESET*
Peak and Hold Reset. TTL input.
pull down to reset
Reset pulse duration
≥
10 ms
Reset pulse must terminate at least 1 ms before the bunch to be measured.
Default value: high
BERGOZ Instrumentation
Multiplexed
01630 Saint Genis Pouilly, France
Beam Position Monitor
Tel. +33-450.426.642
Fax +33-450.426.643
Page 22
User’s manual
BERGOZ Instrumentation - 01630 Saint Genis Pouilly, France - Tel.: +33-450.426.642 - Fax: +33-450.426.643
TVA-VAT-IVA-USt. Nº FR88414997130 - Sàrl. capital 152K - Siren 414 997 130 R.C.S. Bourg - APE 332B
Содержание MX-BPM
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