Paradise P300 Alarms & AGC Connector, Connector type 15 pin `D male, Alarms Connector

ALARMS & AGC CONNECTOR

Connector type : 15 pin `D' male

2, 12

4

11

3

10

5

13

1

9

6

7

8

14

15

ALARMS CONNECTOR

Fault Relay - Common

Prompt Unit fault - N/O

Prompt Unit fault - N/C

Prompt Traffic fault (prompt) - N/O (c/o pair a)

Prompt Traffic fault (prompt) - N/C (c/o pair a)

Prompt Traffic fault (prompt) - N/O (c/o pair b)

Prompt Traffic fault (prompt) - N/C (c/o pair b)

Deferred alarm - N/O

Deferred alarm - N/C

Uncommitted analog output from processor (If Monitor/AGC option fitted). Selectable Rx signal level, Eb/No, IF offset freq etc, see Appendix E

Transmit inhibit

Buffered direct AGC voltage. This may be used as an antenna pointing signal when the demod is unlocked. It responds to composite power in approximately a 2MHz bandwidth around the nominal Rx carrier frequency.

Not connected

Ground

To externally inhibit the Transmit carrier, either apply a TTL/CMOS 'low' signal to pin 7, or short pin 7 to ground (for example with an external relay closure).

All relay contacts rated 30V DC 2A, or 125VAC 0.4A. The functions are as defined below:

Prompt Unit:A unit fault exists, i.e. an equipment failure.

Prompt Traffic: A Tx or Rx traffic fault exists.

Deferred alarm: One of the following conditions exists:

The receive BER is greater than the user defined threshold. The receive Eb/No is lower than the user defined threshold. Buffer slips are more frequent than the user set threshold.

A Backward alarm is being received from either the satellite or terrestrial ports.

Note: N/O means 'normally open'in the non-fail state of the modem (relays energised), when power is removed the relays fall back to the non-normal (ie non-energised) alarm state.

Note: The function of these relays can be changed. See “Relay Mode” in Appendix E: Customer Specific Features on page 201 for a description.

P300H P300 Series Modem Installation and Operating Handbook Page 182