30
MB1 User Manual
© 2016 Expert Electronics
CONNECTIONS
Note:
(
Trigger of the electronic key with open collector, leads to key's ground connection. Voltage
drop equals 0.7V.
(
RS-485 interface is reserved.
(
Logic inputs of the buttoned detectors are reserved.
Warning!
i Maximum current allowed via electronic keys is 450 mA!
i While connecting inductive load (relay, solenoids, fans etc.) to the X1-X8 keys,
it's important to connect the protective diode in parallel to the load!
2.6.5 PA PTT Outputs
Central contacts of the RCA connectors connects to the electronic keys with open collector.
Cases of the connectors are connected to the transceivers case.
Note:
(
Trigger of the electronic key with open collector, leads to key's ground connection. Voltage
drop equals 0.7V.
Warning!
i Maximum current allowed via electronic keys is 150 mA!
i While connecting 1-4 inductive loads (relay, solenoids, fans etc.) to the electronic
keys, it's important to connect the protective diode in parallel to the load!
i In MB1 transceivers released after 15.05.2016 used relays instead of electronic
keys.
Relays contacts are opened.
Maximum current allowed via relay 2A.
To Next Page
Loading...
