Specifications

SB-P-06-4066
sepura
Mobile & Gateway Accessory i/f
specification
30th July 2012
Page 34 of 39
Issue 7c
© Sepura plc 2011
Pin
Signal Name
Signal Function
Signal Function &
Signal Characteristics
V
IL
max = 0.8V
Protected against accidental application
of vehicle supply voltage
Assertion time: >100ms
7
AGPI_2
1
Programmable I/O - Input
V
IH
min = 2.0V
V
IL
max = 0.8V
Protected against accidental application
of vehicle supply voltage
Assertion time: >100ms
8
AGPI_3
1
Programmable I/O - Input
V
IH
min = 2.0V
V
IL
max = 0.8V
Protected against accidental application
of vehicle supply voltage
Assertion time: >100ms
9
RS232_DCD
RS232 Data
See section 4.4
10
RS232_RXD
RS232 Data
See section 4.4
11
RS232_TXD
RS232 Data
See section 4.4
12
RS232_RTS
RS232 Data
See section 4.4
13
RS232_CTS
RS232 Data
See section 4.4
14
RS232_DTR
RS232 Data
See section 4.4
15
GND
-
See section 4.4
Metal
shell
Screen
-
See section 4.4
Notes
There is a pull-down resistance on each digital input. The resistance to ground, will vary in the
range 10k to 27k ohms depending on the applied input voltage, this because there is a
resistor divider network feeding a resistor junction
Only the AIU supports digital inputs or outputs, the console does not.