GBA ST1C - Electrical Interface Specifications; Power Requirements; Signal Interface Specifications; 20-pin Connector Electrical Specifications

GBA Global Bill Acceptors GBA ST1C Operation Manual
Page 18 of 30 Astrosys International Ltd
GBA ST1C Operations manual V1_4
5.0 ELECTRICAL INTERFACE SPECIFICATION
5.1 Power Requirements
5.1.1 Power Supply – 20-pin connector
Voltage: 12Volts DC +/- 10% Regulated
5.1.2 Power Supply – Optional MDB 6-pin Connector and Power Regulator
Voltage: 20 to 50 Volts DC
5.1.3 Power Consumption
Quiescent: 200mA
Validating: 800mA
Stacking: 700mA
Stalled: 1400mA
5.2 Signal Interface
5.2.1 20-pin connector
Open Collector outputs:
Maximum Open Voltage 40V
Maximum Sink Current 50mA @ 12VDC
Maximum Output Low Voltage 0.4VDC
Minimum Output High Voltage 2.4VDC
Digital inputs
Input low level voltage 0…. 1V
Input high level voltage 3…..12V (typically 3… 5V)
Input pull up to 5V 33K Ω
5.2.2 Optional MDB 6-pin Connector
This connector provides opto-isolated data communication lines, in accordance with the NAMA
MDB specification.
Maximum output low voltage: 1V @ 20mA
Maximum input idle level current: 0.5mA
Minimum input active level current: 5mA
Pull-up resistor on TX none
Limiting resistor on RX internal, 560Ω
5.2.3 USB Port
The ST1C is compliant as a USB 2.0 full speed host or device and is fitted with a mini-AB socket.