passed to this terminal about the method of supply; level TTL0 – 230 V AC supply, TTL1 – battery supply. If
the radio modem is supplied in another manner the method of supply is deduced according to the voltage (the
value from which the supply is considered as supply from a battery can be set in SW).
Information LED
Information LED diodes next to the supply connector:
RF Tx — radio modem transmits
RS SYNC — radio modem received message header which was destined for it
Three following LED (signal strength):
ON ON ON
— RSS <85 (stronger signal)
OFF ON ON
— RSS 85 to 95
OFF OFF ON
— RSS 95 to 115
OFF OFF OFF — RSS > 115
POWER ON — radio modem is correctly supplied
Service Connector
The service connector is used for temporary connections of the service cable during local adjustment of radio
modem parameters. Upon attaching the connector (connecting to the RS232 link (RxD,TxD, GND)) the radio
modem automatically switches to service mode and the SCC0 disconnects.
Important
ATTENTION! The service mode is not suitable for normal operation.
Table 3.5. Table of service connector connections
1
AF_OUT
Output of modulation from radio
2
SER_RxD
RS232 RxD according to standard RS232
3
SER_TxX
RS232 TxD
4
MOD_BSB
Input modulation to radio
5
GND
Ground
6
PTT
Transmitter ON
Figure 3.1. Service connector connections
8
Содержание PROFI MR160
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Страница 11: ...5 Dimensional Diagram Figure 5 1 Mechanical dimensions of MR400 11...
Страница 12: ...6 Labelling Radio Modems Figure 6 1 Serial codes of products 12...