Description Of The Connections; Rs232 Serial Port Connection; Connections - UNAOHM EP2500 Manual

2. An input to use the instrument as a monitor for video signals.
3. A connection to a decoder / external descrambler operating with video signals.
Audio and video signal levels and socket connections are standard.

7.21.1 Description of the Connections

1 – 3 = Audio output right-left (The same one selected for internal audio).
2 – 6 = Audio input right-left
4= Audio ground.
8 = Slow switching (Audio/Video).
17 = Video ground.
19 = Composite video output.
20 = Composite video input.
21 = Ground.
5 - 7 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 -18 = N.C.
7.22

RS232 SERIAL PORT CONNECTION

By means of the serial port RS232 it is possible to connect the instrument to a Personal Computer or
other devices.

7.22.1 Connections

The RS232 connector is located on the side panel of the auxiliary functions (43).
Figure 18 shows the connector pin layout.
Not connected.
1 NC
Data reception. (Direction Instrument → PC).
2 Rx
Data transmission. (Direction Instrument ← PC).
3 Tx
4 DTR Data Terminal Ready (Direction Instrument ← PC).
When this line is active the PC informs the instrument that the device is ready for
data exchange.
5 GND Ground.
6 DSR Data Set Ready (Direction Instrument → PC). The instrument activates
this line to inform the PC that it is ready for data exchange.
7 RTS Request To Send. (Direction Instrument ← PC). The instrument waits for this line to be
activated before transmitting data to the PC.
8 CTS Clear To Send. (Direction Instrument → PC). This line when brought to an active level
informs the PC that data transmission may begin.
Not connected.
9 NC
36
UNAOHM
Figure 17 SCART pin location
EP2500 (Rev. 0)