Specifications

AVIDdirector-M2M™ Technical Reference Guide
February 5, 2009 ©AVIDwireless 2004-2009 All Rights Reserved Page 50 of 55
Appendix 9 – Model 200 TTL Ports and DB-37
Expansion I/O Connector
The following is a definition of the Model 200's I/O Expansion Connector. It brings out the console TTL
(Serial0), RS-232 (Serial1), TTL Serial that was used for the RJ-12 on the Model 100 (Serial2), and
TTL1 to TTL18. TTL7 to TTL18 where used for the HVC1 to HVC4 lines on the Model 100.
Currently on Model 200 TTL1-TTL4 and TTL20-TTL23 (8 ports) can be configured for analog input
and 4 of the ports (TTL1, 2, 20 and 21) can be configured for analog output. The inputs can read up
to 5 Volts and give readings of 12 bits per reading. The analog outputs generate 0V to +5V with 6 bit
accuracy.
Pin Connection PSoC Function
1 GND Device Ground
2 RX0 P1_2 Serial0 Data in (console)
3 TX0 P1_3 Serial0 Data out (console)
4 DTR0 Pull low to reset. Normally pulled high
5 TTL1 P0_2 Analog Input/Out, Digital In/Out
6 TTL2 P0_3 Analog Input/Out, Digital In/Out
7 TTL3 P0_0 Analog Input, Digital In/Out
8 TTL4 P0_1 Analog Input, Digital In/Out
9 TTL5 P2_0 Digital In/Out, Switch cap input (Analog)
10 TTL6 P2_1 Digital In/Out, Switch cap input (Analog)
11 TTL7 P2_2 Digital In/Out, Switch cap input (Analog)
12 TTL8 P2_3 Digital In/Out, Switch cap input (Analog)
13 TTL9 P4_0 Digital In/Out
14 TTL10 P4_1 Digital In/Out
15 TTL11 P6_0 Digital In/Out
16 TTL12 P6_1 Digital In/Out
17 TTL13 P6_2 Digital In/Out
18 TTL14 P6_3 Digital In/Out
19 GND Device Ground
20 +5/12 V
Selectable via jumper JP1 (inside). Either 5V regulated or line
voltage in (nominal 12V)
21 TTL22,CTS2 P0_6 Analog Input, Digital In/Out, Serial2 CTS In
22 TTL20, RX2 P0_4 Analog Input/Out, Digital In/Out, Serial2 RX In