DM240XR-DVB High-Speed Digital Modulator
Rear Panel Interfaces
TM120 – Rev. 1.1
5-5
5.5 Remote Port (I/O)
The Remote Port Interface (J4) can be used for the monitor & control functions of the unit. The
physical interface is a female 9-Pin D-Sub Connector. This bi-directional port complies with
RS-485 Electrical Specifications. Refer to Section 7.6 for protocol and programming details.
Pinouts are listed in Table 5-1.
Table 5-1. J4 - RS-485 Remote Control- 9-Pin ‘D’ Female
Pin No.
Signal
Description
Direction
1
Tx (B)
Transmit Data (+)
Output
5 GND
Ground
---
6
Tx (A)
Transmit Data (-)
Output
8
Rx (B)
Receive Data (+)
Input
9
Rx (A)
Receive Data (-)
Input
5.6 Terminal Port (I/O)
The Terminal Port Interface (J1) can be used for the monitor & control functions of the unit. The
physical interface is a female 9-Pin D-Sub Connector. This bi-directional port complies with
RS-232 Electrical Specifications. Refer to Section 4.6 for terminal interface details. The pinouts
are listed in Table 5-2.
Table 5-2. J1 - RS-232 Terminal Port - 9-Pin ‘D’ Female
Pin No.
Signal Name
Description
Direction
3 TxD
Transmit
Data
Output
2 RxD
Receive
Data Input
5 GND
Ground
---
7 RTS
Request
to
Send
Output
8 CTS
Clear
to
Send Input
5.7 Alarm Port
The Alarm Connector (J3) is used to indicate the fault condition of the modulator to external
equipment. This male 9-Pin D-Sub Connector provides connection to two Form-C relays and an
open collector output. The user can distinguish between major and minor alarms with the relays.
Refer to Table 5-3 for connector pinouts. Table 5-4 below describes the alarm indications.
Table 5-3. Alarm Connector J3 Pin Assignment
Pin No.
Connection
1
Relay 1 NO
2 Relay
1
C
3
Relay 1 NC (Major Alarm)
Содержание DM240XR
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Страница 10: ...Table of Contents DM240XR High Speed Digital Modulator x TM120 Rev 1 1 ...
Страница 12: ...Introduction DM240XR High Speed Digital Modulator 1 2 TM120 Rev 1 1 ...
Страница 16: ...Installation DM240XR High Speed Digital Modulator 2 4 TM120 Rev 1 1 ...
Страница 19: ...DM240XR High Speed Digital Modulator Theory of Operation TM120 Rev 1 1 3 3 ...
Страница 55: ...User Interfaces DM240XR High Speed Digital Modulator 4 36 TM120 Rev 1 1 ...
Страница 67: ...Rear Panel Interfaces DM240XR DVB High Speed Digital Modulator 5 12 TM120 Rev 1 1 ...
Страница 69: ...Maintenance and Troubleshooting DM240XR High Speed Digital Modulator 6 2 TM120 Rev 1 1 ...
Страница 79: ...Technical Specifications DM240XR High Speed Digital Modulator 7 10 TM120 Rev 1 1 ...
Страница 103: ...Appendix A DM240XR High Speed Digital Modulator A 24 TM120 Rev 1 1 ...
Страница 124: ...DM240XR High Speed Digital Modulator Appendix B TM120 Rev 1 1 B 21 ...