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Acquisition Device Input

Lynx II DSA User's Manual – 7096089 137

CHAN ADV

External MCS Channel Advance input connector, MCX. TTL compatible, software-

selectable logic polarity for active-high or active-low. Pulse >50 ns advances the current

MCS channel during MCS acquisition.

SWEEP ADV

External MCS Sweep Advance input connector, MCX. TTL compatible, software-

selectable logic polarity for active-high or active-low. Pulse >50 ns resets the current

sweep in progress and begins a new sweep. This will occur with each pulse until the preset

sweeps are reached.

GATE

Coincidence/anti-coincidence input connector, MCX. TTL compatible; software-

selectable logic polarity for active-high or active-low.

• None – disables coincidence. Signal at GATE input has no effect on data storage.

• Coincidence – GATE signal active at the pulse processing/storage time allows

storage of the event.

• Anti-Coincidence – GATE signal active at the pulse processing/storage time blocks

the storage of the event.

• Combined Coincidence and Combined Anti-Coincidence - Storage of an event

occurs for Coincidence or is blocked for Anti-Coincidence when the event’s pulse

processing/storage time occurs within the storage window. The storage window is

defined by the GATE signal active period in combination with Input Gate Delay

and Input Pulse Width parameters. Data requests for group 1 return the actual data;

all events (regardless of gating condition) will be recorded in Memory Group 2.

The pulse processing/storage time occurs at 1.1 x (RiseTime + FlatTop). All time values

are in microseconds.

CHGR RDY

Sample Changer Ready input connector, MCX. TTL compatible, software-selectable logic

polarity for active-high or active-low. Active signal allows acquisition when a Start

Acquire command is received. Inactive signal will defer the start of acquisition until

CHANGER READY becomes active.

Mirion Technologies Lynx II DSA User Manual

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