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SIMOCO PRF1060 'D' CONNECTIONS

 

PIN NO. PRF10 FUNCTIONALITY
1 Tx600 Ohm
-14dbm nominal for 60% dev at 1Khz (Range -37dbm to 0dbm)
Transformer coupled to pin 20 or AF high if unbalanced
2 -ve -ve
3 Rx600 Ohm -14dbm nominal for 60% dev at 1Khz (Range -37dbm to 0dbm) Transformer coupled to pin 22 or AF high if unbalanced
4   No connection made
5 Common Station Alarm Open collector low, when active
6   Not assigned reserved for future use
7   Not assigned reserved for future use
8 CTCSS Unprotected input to TX modulator. Level and input impedance to be advised shortly
9 +13.6v unswitched 1 amp available to power external devices
10 TX Key Pull down. Typical current 1.5mA. Open circuit voltage typically 5V
11 TX Lock Alarm Open collector low when activated
12 -ve -ve
13 RX Lock Alarm Open collector low when activated
14 CTCSS Decoder Defeat Pull down to activate. When activated allows squelch to open with any signal
15 RSSI Range as follows but can be negotiated if difficult to implement Graph attached
16 Channel Line 6 Binary C6, Normally high, pull low
17 Channel Line 4 Binary C4, Normally high, pull low
18 Channel Line 2 Binary C2, Normally high, pull low
19 Channel Line 0 Binary C0, Normally high, pull low
20 TX600 Ohm -14dbm nominal for 60% dev at 1Khz (Range -37dbm to 0dbm)
Transformer coupled to pin 1 or AF return/ground if unbalanced
21   No connection made
22 RX600 Ohm -14dbm nominal for 60% dev at 1Khz (Range -37dbm to 0dbm)
Transformer coupled to pin 3 or AF return/ground if unbalanced
23 External LS High External loudspeaker typically 16 Ohms
24 Squelch Status Open collector, low when squelch open
25 Squelch Relay NC 1 amp DC maximum at 48V DC. Floating
26 Squelch Relay NO 1 amp DC maximum at 48V DC. Floating
27 Squelch Relay Common Floating
28 DC Input under voltage alarm The PRF10 can charge external 12V Sealed Lead Acid battery. The battery can be damaged is subject to a deep discharge. The PRF10 automatically disconnects at a predetermined voltage. An alarm is signalled at 100mV prior to disconnect. Open collector low, when activated
29 Talk Through Enable Pull down to activate
30 Squelch Defeat Pull down to activate
31   No connection made
32   No connection made
33 RF Output Alarm Open collector low, when RF fails to meet power
34 Unfiltered and unmuted RX AF Effectively discriminator output. Level and impedance to be defined shortly
35 Channel Line 50 Binary C5, normally high, pull low
36 Channel Line 3 Binary C3, normally high, pull low
37 Channel Line 1 Binary C1, normally high, pull low

 

Channel Select Lines CO to C6

These lines control the selection of the Tx and Rx Channel. The seven inputs constitute a binary number (00 to 99) which designates the channel number selected. The lines are internally pulled up to +SV (logic 1) and require to be pulled down to OV for logic 0. Any request for a channel number above 99 is ignored and the equipment will remain on the last channel selected.

 

 

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Last modified: February 09, 2006