=  TQDC16VS Board Front Panel Interface =

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=== TTC Bus Input ===

[[TTC]] bus inputs for clock, spill, trigger and parity LVDS signals. It is compatible with VMEDAQ specification.

=== TRIGGER Bus Outputs (TQDC16VS-V only) ===

Outputs for on-board trigger matching logic, 62.5 - 80.0 ns trigger logic delay. Unused for [[TQDC16VS-E]].

=== TTL I/O ===

Programmable TTL input/output ports, LEMO connectors.
||TTL I/O||[[TQDC16VS-E]]/[[TQDC16VS-WR|WR]]||[[TQDC16VS-V]]||
||1||busy output||Trigger Line 1 output||
||2||trigger input||Trigger Line 2 output||
||3||Event number reset input||Trigger Line 3 output||
||4||unused||Trigger Line 4 output||

=== Inputs ===

16 single-ended signal inputs, LEMO connectors, coaxial, 50 Ohm, +-1V.

=== White Rabbit Port (Ethernet) ===

Only for [[TQDC16VS-E]]/[[TQDC16VS-WR|WR]] firmware.

=== LEDs Block #1 ===
 * green (LED_8) - system ready
 * yellow (LED_7) - [[TQDC16VS-V]] - VME activity, [[TQDC16VS-E]] - RegIO activity
 * red (LED_6) - [[TQDC16VS-V]] - VME error, [[TQDC16VS-E]] - system error

=== LEDs Block #2 ===
 * green (LED_5) - [[TTC]] ok
 * yellow (LED_4) - [[TTC]] activity
 * red (LED_3) - [[TTC]] error


=== LEDs Block #3 ===
[[TQDC16VS-V]] - system info, [[TQDC16VS-E]] - network info
 * green (LED_2) - [[TQDC16VS-V]] - PLL locked, [[TQDC16VS-E]] - ip assigned
 * yellow (LED_1) - [[TQDC16VS-V]] - trigger, [[TQDC16VS-E]] - unused
 * red (LED_0) - [[TQDC16VS-V]] - readout error, [[TQDC16VS-E]] - link error

=== LEDs Block #4 ===
White Rabbit/Ethernet LEDs, not implemented for [[TQDC16VS-V]]
 * green - link
 * yellow - activity
 * red - error

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