Sirius 800 Series User Manual
Audio Input Expansion in a Two-Frame System
Sirius 850: Video and Audio Expansion 12.8
Iss 5 Rev 7
Page 225
© 2017 SAM
12.8 Audio Input Expansion in a Two-Frame System
When two Sirius 850 routers are connected together (see section 12.2) audio inputs can be
transmitted from an AHP input card in one router to an AHP input card in the second router
and the audio inputs can be routed through the audio crosspoints in both routers if required.
The connecting cable is bi-directional meaning that the reverse is also true.
This feature is available with both the 4915 (audio input module) and the 5919/5915 (audio
capable video input module). Audio routing can be expanded up to a maximum of 36864
2
if
both routers are fully loaded with AHP input cards.
The DS-Link sockets on the rear panels of 4915 and 5919/5915 input modules pass their
multiplexed audio transport streams to the other router frame via a bi-directional DS-Link
expansion cable (see Figure 149 & Figure 150). Once the expansion audio transport stream
arrives at the input card in the other router frame it is passed, along with the input cards own
audio transport stream, to the audio crosspoint card in that router in the usual way and is
routed by the local controller as normal.
Figure 149 Bi-directional DS-Link Audio Input Expansion Cable
Figure 150 Audio Expansion in a two Frame System
Note:
•
Each pair of expansion input cards must be AHP cards (see Figure 150).
•
Each pair of expansion input cards must be in the same card slot position in each
router (see Figure 150).
•
The same number of AHP input cards must be fitted in both frames and must be in
the same card slot positions in each router.
6 or 12 Metres
1 x 6 metre expansion cable SAM order code: FGAEY WDS6THIN
1 x 12 metre expansion cable SAM order code: FGAEY WDS12THICK
DS-Link Bi-directional
Expansion Cables
Sirius 850 Frame 1
Rear View Input
slots 1 to 24
Sirius 850 Frame 2
Rear View Input
slots 1 to 24
4915 Audio or
5919/5915 Video
Input Module Card
Slot 24
4915 Audio or
5919/5915 Video
Input Module Card
Slot 24
4915 Audio or
5919/5915 Video
Input Module Card
Slot 1
4915 Audio or
5919/5915 Video
Input Module Card
Slot 1
