ArWest 01-00011-110, Руководство пользователя, Страница: 39 / 48

Technical Specifications
External Connectors
User Ports’ Connector
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6 TTLI1 SLEEP Sleeps/wakes
radio
Receive only TTL Input In sleep mode, all radio functions are
disabled consuming less than 50µA.
An internal 10K pull-down wakes up
the radio if this signal is left
unconnected. At wake up, any user
programmed configuration settings
are refreshed from flash memory,
clearing any temporary settings that
may have been set:
(3.3V) – Sleep Radio; (0V) – Wake
Radio
As an option could be used as TTL
Input Line 1.
7 DPORT3 MDM_GRN Data Carrier
Detect TTL
Output Used by remotes to indicate that the
remote has successfully acquired the
signal from base station:
(0V) 1 – Carrier detected
(synchronized)
(3.3V) 0 – No carrier detected (not
synchronized)
8 DPORT4 RTS Request to Send TTL Input Gates the flow of receive data from
the radio to the user on or off. An
internal 10K pull-down enables data
receive if this signal is left
unconnected. In normal operation,
this signal should be asserted:
(0V) – Receive data (RxD) enabled
(3.3V) – Receive data (RxD)
disabled
9 DPORT2 DSR Data Set Ready TTL
Output Used to control transmit flow from
the user to the radio:
(0V) 1 – Receive buffer has data to
transfer;
(3.3V) 0 – Receive buffer is empty
10 RES CONT RESCONT Reset Control TTL Input Reset the radio by shortening this pin
to the ground.
11 TTLO1 TTLOUT1 TTL Output Line
1 TTL
Output Reserve line
12 TTLO2 TTLOUT2 TTL Output Line
2 TTL
Output Reserve line
13 GND GND Ground - Signal and Chassis Ground
14 TTLI2 TTLIN TTL Input line TTL Input An internal 100K pull-up resistor is
applied.
15 VCC36 PWR Power Supply External Regulated positive 4.2V DC from
ext. Power Supply.
PIN
#
Signal
Designator
Signal name Description I/O Comments