Ritron RIT44-465 Manual Do Utilizador
11
3.4.2
DC Power Connector
On the right side of the front panel is the DC Power Connector. This connector is a male P-5 type with a
2.11 mm (0.083 in.) inside diameter, 5.51 mm (0.217 in.) outside diameter and a 9.5 mm (0.374 in.)
internal length. The positive terminal is on the inside.
3.4.3
Interface Connector
Near the middle of the front panel is the Interface Connector. This connector is a female telephone RJ-12
modular connector:
Pin No.
Name
Description
1
GND
Circuit ground and common point for other pins.
2
AS2_RX
0 to 3.3 volt asynchronous RX interface to microcontroller
3
PTT
Bringing low will cause unit to transmit. Can also transmit via
Ritron programmer.
4
RSSI
Voltage increases with larger signals
5
Data Out/AS2_TX
Jumper J308 determines mode. Normally set to inverted
discriminator output. Can view 4FSK eye pattern.
6
De-emphasized audio
De-emphasized inverted discriminator output. Can be used to
measure SINAD.
Note: There is no vocoder in the repeater so voice output is not available. Likewise, no voice can be
transmitted from the repeater interface connector.
3.4.4
Mini USB programming port
Connect cable between this port and the PC USB port for use with the Ritron RLR-PCPS programming
software.