Viking AD128128M - Manual (Page 8)

AD6464M / AD128128M Rev. 5
2.5 Rear view
Figure 1: Rear view
The following service connectors can be found on the rear of the Modular AES/EBU Digital
Audio Router:
− AC Mains A: AC mains power supply.
− AC Mains B: AC mains power supply (if redundant PSU is installed).
− Serial A1 and A2: RS-232 or RS-422 for external control protocols.
− Serial B1 and B2: RS-232 or RS-422 for external control protocols (if redundant
SysCon is installed).
− Ethernet A: 10/100Base-T Ethernet bus for external router control.
− Ethernet B: 10/100Base-T Ethernet bus for external router control (if redundant
SysCon-SM is installed).
− Serial GYDA A: RS-232 or RS-422 for external connection to GYDA-VX (if GYDA-VX is
installed).
− Serial GYDA B: RS-232 or RS-422 for external connection to GYDA-VX (if redundant
GYDA-VX is installed).
− Ethernet GYDA A: 10/100Base-T Ethernet bus for external connection to GYDA-VX
(if GYDA-VX is installed).
− Ethernet GYDA B: 10/100Base-T Ethernet bus for external connection to GYDA-VX
(if redundant GYDA-VX is installed).
− VIT 11: Synchronisation signal 1 (in/out). Blackburst/composite/tri-level sync
reference input with passive loop-through for vertical interval switching.
− VIT 21: Synchronisation signal 2 (in/out). Blackburst/composite/tri-level sync
reference input with passive loop-through for vertical interval switching.
− Power Alarm: Power fail alarm relay contacts. Separate contact pair for each PSU
module that is installed. Contact closes on power failure. See Chapter 2 for further
description.
− SW 1: Configuration switch 1 (not in use).
− SW 2: Configuration switch 2 (not in use).
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