ASB Audio Switching Boards
171
Enova Digital Media Switchers - Hardware Reference Manual
Attaching the HSSI SMA (Sub-miniature version A) Cable
An HSSI (High-Speed Serial Interface) SMA cable (AMX part # 64-0051) is provided when Audio Switching Boards are either
purchased separately or with an enclosure. The HSSI cable attaches from the ASB input board to the ASB output board
and is required on all enclosure models except the Enova
DGX 6400. Do not dispose of or break this cable as the Audio
Switching Boards will not function without it.
NOTE:
The command
?EXT_AUD
sent to 5002:1:0 responds with
TRUE
when the cable is attached and the Audio Switching
Boards are fully functional.
1.
Press and hold the cable connector face flat against the Audio Switching Input Board’s HSSI SMA connector face.
2.
Using your free hand, push cable connector’s coupling nut forward until threads begin to engage between
connectors.
IMPORTANT:
The cable must not be allowed to rotate while tightening the coupling nut to avoid damage to the
center conductor (male pin) on the SMA connector.
3.
Rotate coupling nut clockwise until resistance is felt, being careful to avoid cross-threading coupling nut.
4.
Attach free-running end of cable to Audio Switching Output Board’s HSSI SMA connector per Steps 1-3.
5.
Test/check the routing of Audio Switching Board signals (see page 172).
Routing Audio Signals
Audio Routing Capability
The audio routing capability of systems with Audio Switching Boards is system dependent:
System Configuration interface - Audio Virtual Matrix (VM 2)
In the System Configuration interface, the Audio Virtual Matrix (VM 2) is controlled by selecting the
Switch Mode: Audio
button. Virtual Matrix (VM) sizes reflect the model of the enclosure. VM 2 includes audio-only signals and audio
embedded on video signals:
Audio Matrix I/O Paths
For routing purposes, the audio matrix I/O channels are numbered as follows:
A/V and Video input and output ranges cover the basic switching size of the system: 8x8, 16x16, 32x32, or 64x64
Audio only input and output ranges cover the embedded audio as part of the basic switching size of the system,
plus the audio available on the Audio Switching Boards (ASB) in the expansion slots, plus the assignment of one
input as a down-mixed audio channel, which is routed as a separate input:
FIG. 82
ASB Audio Switching Boards with HSSI cable connected
Audio Routing Capability - per System
Enova DGX 800
16x16 audio I/Os comprised of 8 audio only I/Os and 8 video with embedded audio I/Os
Enova DGX 1600
24x24 audio I/Os comprised of 8 audio only I/Os and 16 video with embedded audio I/Os
Enova DGX 3200
40x40 audio I/Os comprised of 8 audio only I/Os and 32 video with embedded audio I/Os
Enova DGX 6400
80x80 audio I/Os comprised of 16 audio only I/Os and 64 video with embedded audio I/Os
System Configuration interface - Audio Virtual Matrix (VM 2)
Enova DGX 800
8x8 VMs with the exception of VM2 Audio which is 16x16
Enova DGX 1600
16x16 VMs with the exception of VM2 Audio which is 24x24
Enova DGX 3200
32x32 VMs with the exception of VM2 Audio which is 40x40
Enova DGX 6400
64x64 VMs with the exception of VM2 Audio which is 80x80
HSSI Cable
