Tait TM8000 Series Applications Manual page 108

Table 5.5 Encryption module interface specification
Encryption Internal options
module connector
Signal Pin
Power
GND
PTT to options
Clear/code mode
Secure mode
Radio Tx audio to
module
Module Tx
audio to radio
Radio Rx audio to
module
Module Rx
audio to radio
a. If the module input is 5V CMOS then a 3.3kΩ pullup to 5V on the module will be required for compatibility.
For more information refer to
b. RSD = Rated System Deviation
108 Connecting Third-Party Products
Configure the interface between the encryption module and the internal
options connector as described in
Description/parameter
Signal
1 13V8_SW Switched and unregulated power
from radio.
3 AGND Analog ground.
9 IOP_GPIO1 Control head PTT signal from radio.
Action:
Active State:
Module logic threshold required:
10 IOP_GPIO2 Mode select from radio. Toggled by
radio function key.
Action:
Active State:
Module logic threshold required:
11 IOP_GPIO3 Mode indicator to radio.
Action:
Active State:
2 AUD_TAP_OUT Tx audio from radio.
Audio tap input point:
Audio tap input unmuting:
Signal level into 600 Ω:
AUD_TAP_OUT output impedance:
6 AUD_TAP_IN Tx audio to radio.
Audio tap input point:
Audio tap input unmuting:
Signal level into 600 Ω:
AUD_TAP_IN input impedance:
2 AUD_TAP_OUT Rx audio from radio.
Audio tap input point:
Audio tap input unmuting:
Signal level into 600 Ω:
AUD_TAP_OUT output impedance:
6 AUD_TAP_IN Rx audio to radio.
Audio tap input point:
Audio tap input unmuting:
Signal level into 600 Ω:
AUD_TAP_IN input impedance:
"Digital Output Lines" on page
Table 5.5.
Specification
Reflect PTT Status
Low
3V3 CMOS-compatible
F1...F4 Key Status
Low
3V3 CMOS-compatible
Toggle F1...F4 Key LED
High
Use T4-E
Use 'on PTT'
690mVp-p (60% RSD
600Ω typical
Use T4-E
Use 'except on PTT'
690mV
100kΩ typical
Use T4-E
Use 'on PTT'
690mV
600Ω typical
Use T4-E
Use 'except on PTT'
690mV
100kΩ typical
64.
TM8000 3DK Hardware Developer's Kit Application Manual
September 2003 © Tait Electronics Ltd
a
a
b
)
b
(60% RSD )
p-p
b
(60% RSD )
p-p
b
(60% RSD )
p-p