User's Guide

Table 3-5 Facilities 2 Connector (CN2) Pin-Out for Transmitters
Pin Function Description
3
4
Tx wideband audio line L1
Tx wideband audio line L2
600 ohm balanced input (adjustable
-20 dBm to +10 dBm for m = 0.9)
5
Tape output
600 ohm single-ended output. Tx audio at
-8 dBm (nominal)
7
PTT state (pin 7 not used if
option 6 is selected)
Open collector with 10k pull-up resistor to 5 V
13
DPTT Delayed PTT input
15
Hardwire PTT 0 volt input keys transmitter
16
17
Tx narrow-band audio line L1
Tx narrow-band audio line L2
600 ohm balanced input (adjustable
-20 dBm to +10 dBm for m = 0.9)
20
21
Link 11 Tx audio line L1 (UHF only)
Link 11 Tx audio line L2 (UHF only)
600 ohm balanced Link 11 audio input
(adjustable -20 dBm to +10 dBm for
F = 20 kHz)
24
BIT output Memory fault output. Active low TTL
25
0 volt Ground
Remote PTT Configurations
38 Remote PTT configurations (reference transceivers and transmitters) are shown in Fig. 3-1 and are
as follows:
❏
dc Phantom keying (Low to PTT)
❏
dc Phantom keying (High to PTT)
❏
ac Tone keying
❏
Direct keying (Low to PTT)
❏
Direct keying (High to PTT)
39 Connections shown in Fig. 3-1 are to the transceivers facilities 2 connector CN2. Additionally,
phantom keying and ac tone keying can be configured through the remote connector CN5. If using this
method, use those connections shown in Fig. 3-1 that are in brackets. All links and circuitry shown are on
the remote control module.
3000DV2 Radios Section 3
Page 15
Note that the radio(s) are normally configured to a user’s requirements during manufacture at
Park Air Electronics. PTT configurations are therefore given for informational purposes only. If
there is a need to alter any settings reference to the appropriate technical handbook(s) may be