C120S Technical Manual TSP093.doc Issue 1.2 – January 2005
Money Controls 2005. All rights reserved.
Page 6 of 15
3.1. Electrical
interface:
External connection is by means of a 10 way (dual row 2x5 way) header on a 0.1” pitch.
Connector recess is polarised for use with industry standard IDC headers and ribbon cable:-
Figure 1: C120S Serial Connector
Table 3: C120S Serial Interface
PIN
FUNCTION
ACTIVE
1
ccTalk
ccTalk serial data line
2
RxD1 *
Receive flash data 5V TTL/CMOS.
3
Ready
Active low.
4
TxD1 *
Transmit flash data 5V TTL/CMOS.
5
Reset
Active low when supply is outside spec.
6
CNVSS *
Active low for flash program mode.
7
Inhibit ALL
Low
8
GND
0V
9
Supply
+5V
10
GND P
Solenoid 0V supply return (order option)
* Flash programming pins – Do not connect to these pins during normal operation.
There is provision to operate with two grounds, one for combined low power validation
circuits [pin 8] and one for the separate solenoid return utilising reserved pin 10 [GND P].
Standard units are supplied with solenoid return and GND connected to pin 8..
