User Manual

RF Technology R220 Page 25

7 SPECIFICATIONS

7.4.22 External Squelch Input

An external input is provided to squelch or mute the receiver audio output. This may

be used in conjunction with an external decoder or to mute the receiver during

transmissions.

External Squelch Input can be connected to the T/R Relay pin on Eclipse transmitters

mute the receiver during transmission.

7.5 Connectors

7.5.1 Antenna Connector

Type N Female Mounted on the module rear panel

7.5.2 Power & I/O Connector

25-pin ``D'' Male Mounted on the rear panel

7.5.3 Test Connector

9-pin ``D'' Female mounted on the front panel

A Engineering Diagrams

A.1 Circuit diagram

Figure 1 shows the detailed schematic diagram with component numbers and values