Sonifex CM-CU21, Руководство пользователя

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CM-CU21 Commentator Unit User Handbook
9
CM-CU21 COMMENTATOR UNIT
4
REAR P
ANEL C
ONTR
OLS & C
ONNEC
TIONS
When powering the Commentator Unit via the DC supply input, it is important to ensure
the unit is suitably earthed. An earth connection point is provided on the rear panel in the
form of a M4 stud and screw and this should be connected directly to a technical earth.
GPIO Port
The Commentator Units’ GPIO port has 7 open-collector driven outputs and 4 active low
inputs. The 7 open-collector outputs, which are low (conducting) when active, indicate
which of the On Air or Talkback channels are active.
Each of the 4 active low inputs drives a call/alert signal on the corresponding Talkback
button. When an input is active, the associated Talkback button will flash amber.
The GPIO port connector is a 15-way female D-type with the following pin assignments:
Pin Number I/O Function
1 O Commentator 1 ON AIR active – open collector output
2 O Commentator 1 TALKBACK A active – open collector output
3 O Commentator 1 TALKBACK B active – open collector output
4 O Commentator 2 ON AIR active – open collector output
5 O Commentator 2 TALKBACK A active – open collector output
6 O Commentator 2 TALKBACK B active – open collector output
7 O Commentator 3 ON AIR active – open collector output
8 - no connection
9 - Digital ground (0V)
10 I Commentator 1 TALKBACK A call/alert – active low input
11 I Commentator 1 TALKBACK B call/alert – active low input
12 - Digital ground (0V)
13 I Commentator 2 TALKBACK A call/alert – active low input
14 I Commentator 2 TALKBACK B call/alert – active low input
15 - Digital ground (0V)
Mains Power
Mains power is applied via a standard three-pin IEC male socket. Mains voltages between
85V and 264V AC at frequencies between 47 and 63Hz are accepted without adjustment.
A 1A, 5 x 20mm SB fuse is used. The Earth pin MUST be connected to ensure safety.