RTS RTS ISDN 2002, Руководство оператора

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PAGE 9-46 RTS ISDN 2002 System
9.4 RS 485 Data Interface (DATA)
The RS485 Data interface can be configured for Mode 1, Mode 2 and Mode 4.
The pin assignment of the connector is shown in TABLE 9.4.
TABLE 9.4: RS485data Interface (SUB-D, 25-pin)
Connect. Signal
Description Characteristic
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
GND
Data +
Data -
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Ground
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Data positive
Data negative
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used Data Rate: 9600 Baud
Level: V.11 symmetrical
Protocol:
- RTS protocol (Mode 1)
- Transparent (Mode 2, 4)
1 start bit
8 data bits
1 stop bit
9.5 TTL Interface (USER I/O)
The socket TTL I/O allows the connection of TTL signals and also TTL signals
can be delivered. The pin assignment of the 9 pin SUB-D connector is shown
in TABLE 9.5.
TABLE 9.5: TTL Interface (USER I/O)
Pin
Function Remarks
1
2
3
4
5
6
7
8
9
Not used
Ringing call 1
- call 1 acceptance
- call 1 initiation
- disconnect call 1
Ringing call 2
Ground
- call 2 acceptance
- call 2 initiation
- disconnect call 2
status call 1
status call 2
not used Pin 2, 4: high active
Pin 3, 6: falling edge
- call acceptance
- call initiation
Pin 3, 6: rising edge
- disconnect
Pin 7, 8: high active