Installing the Equipment
Page 2-14
Instruction Manual: Professional Receivers and Decoders (IRD)
ST.TM.TT1220.1
RS-232 Low-speed Asynchronous Data Output
A 9-way D-type female connector is provided as the connection for
low-speed data output.
Table 2.11: RS-232 Low-speed Data Connector
Item
Specification
Connector type
9-way D-type, Female
Connector designation
Data
Output rate
1200, 2400, 4800, 9600, 19200 or 38400 baud selectable
Pin
Function
1
Reserved
2
Receive (Rx)
3
Reserved
4
Reserved
5
Ground
6
Reserved
7
Reserved
8
Reserved
Pin-outs
9
Reserved
Alarm Relay
A 9-way D-type female connector is provided as an alarm / controlled
relay mechanism. In the DVB CI or NDS VideoGuard BSkyB mounting, only
relay one is active, indicating if the unit is in an alarm state or not. In the
NDS VideoGuard Director mounting, relays one through four are active, 2
through 4 controllable from the NDS Director software platform.
Table 2.12: Alarm Connector
Item
Specification
Connector type
9-way D-type, Female
Connector designation
Alarm
3
Relay method
Closed contact relay
Pin
Function
1
Relay 4, common pin
2
Relay 3, common pin
3
Relay 2, normally closed
4
Relay 1, common pin
5
Relay 2, common pin
6
Relay 4, normally open
7
Relay 3, normally open
8
Relay 1, closed on alarm, open on OK
Pin-outs
9
Relay 1, open on alarm, closed on OK
3
Relay 1 is compatible with the TT1200 Alarm relay, where pin 8 is closed and pin 9 is open at power off (indicating
alarm).
