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CDM-710 Broadcast Satellite Modem
Revision 11
Rear Panel Connectors and Pinouts
MN/CDM710.IOM
3–5
P1 Notes :
1.
The relays have low voltage contacts with transient suppressors across each pin
to ground. The Summary Relay combines Tx, Rx, and Unit Faults into a single
relay.
2.
The maximum working voltage is 18VDC or 13VAC. The maximum current
rating is 1 Amp DC or 0.5 Amp AC.
3.4.2 Remote
Port
Connector (RS-232/-485), P2
The P2 Remote port connector is a 9-pin Type ‘D’ male (DB-9M) interface with
threaded jack nuts. It is intended for connection to an M&C computer or terminal
device, and is user selectable for either RS-232 or RS-485.The connector pinout is as
follows:
Pin #
Description
Direction
1 Ground
-
2
RS-232 Transmit Data
Out
3
RS-232 Receive Data
In
4 Not
Used
-
5 Not
Used
-
6
RS-485 Receive Data B *
In
7
RS-485 Receive Data A *
In
8
RS-485 Transmit Data B
Out
9
RS-485 Transmit Data A
Out
* Use for 2-wire RS-485 operation
3.4.3
External Reference Input, J7
The Ext Ref (External Reference) input is used to supply a master reference to the entire chassis.
The clocks on the Framer Card and the Modulator and Demodulator Synthesizers are locked to
this input, when it is used. Note that some data interfaces have an Ext-Clk input for synchronizing
the data sources. Observe the following:
Initially released chassis:
SMA Female connector
Rev. A and later chassis:
BNC Female connector
Содержание CDM-710
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Страница 26: ...CDM 710 Broadcast Satellite Modem Revision 11 Preface MN CDM710 IOM xx Notes ...
Страница 64: ...CDM 710 Broadcast Satellite Modem Revision 11 Flash Upgrading MN CDM710 IOM 4 6 Notes ...
Страница 120: ...CDM 710 Broadcast Satellite Modem Revision 11 Front Panel Operation MN CDM710 IOM 5 56 Notes ...
Страница 144: ...CDM 710 Broadcast Satellite Modem Revision 11 Ethernet Management MN CDM710 IOM 6 24 Notes ...
Страница 230: ...CDM 710 Broadcast Satellite Modem Revision 11 Appendix A MN CDM710 IOM A 56 Notes ...
Страница 236: ...CDM 710 Broadcast Satellite Modem Revision 11 Eb No Measurement MN CDM710 IOM B 6 Notes ...
Страница 242: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX ...