Sepura Pinouts

[spyman]

Hi everyone,

this is my first post, I am reading in this forum since a while now and thought I share my info in getting started with Sepura TETRA radios.

First to set everything up I needed some pinouts.

SCC Pinout
SCC_back_pinout.jpg
Same on the web

Dedicated Data Cable (DDC)

1 DCD
2 RX
3 tx
4 RTS
5 CTS
6 DTR
7,8 GND

This connector uses normal RS232 levels (+-12V).
These are direct connections to the terminal connector.

AUDIO ACCESSORY INTERFACE (AAI)

1 ACC_ID This uses a pull down resistor to identify the type of accessory
2 GND Used for pull downs
3 Screen Connect to shelding
4 ACC_KEY This uses a pull down resistor to identify the key pressed, on the accessory
5 Hook Pull down if hooked
6 PTT Pull down to press PTT
7 Mic_in Microphone input
8 Mic_GND Microphone ground
9 Ear_out Audio output max. 100mW
10 Ear_GND Audio output negative side

This connector uses 5V pull ups

Connectors

The connectors on the console (e.g. SCC1) are from the Hirose DF11 series.
So part number of the 10 pin (AAI, RCI) housing is DF11-10DS-2C.
The 8 pin housing (DDC) has the part number DF11-8DS-2C.

For each pin you want to use, you also need a contact. There are three different ones depending on the cabe size you want to use:
DF11-22SCF for "large" cables
DF11-2428SCF for medium size cables
DF11-30SCF very small cables
Keep in mind the size is relative to the size of the connector.

More can be found in this document:
https://fccid.io/XX6-SRG3500XB/User-Manual/Mobile-gateway-accessories-1756135.pdf

I could not find detailed information about RAC and VAC.

[spyman]

STP Series

Facility Connector
STP_facility_pinout.jpg
Same pic on external site

P1 Charge +10.1V

S1 Line in
S2 Line out
S3 Line GND
S4 DCD gray
S5 TX orange
S6 RX yellow
S7 DTR blue -> (on the programming cable this is also connected to DSR)
S8 RTS green
S9 CTS brown
S10 x
S11 x
S12 x
S13 x
S14 GND black
S15 x
S16 Power out

P2 Charge GND

All pins use pullups and 3.3V
According to the manual the serial signals are inverted.

This pinout is from Data Interface User Guide (MOD-14-1758) which I did find in one of the RM2 uploads in this forum. I verified it with my own cable.

In this post it seems to me, that some of the pins (e.g. DCD) are mixed up. But I don't think this is much of an issue, since I doubt that these pins are used in many applications.

It seems that one of the pins serves as Accessory Identifier (ACC_ID) once connected via resistor to GND. I guess it can activate the line in and out.

Rugged Accessory Connector (RAC)

RAC_pinout.jpg
Same pic on external site

1 GND
2 Mic -
3 V Battery (7.4V)
4 Mic +
5 ?
6 Speaker +
7 Speaker -
8 Digital Softkey (radio uses a pullup to Vcc, if it is on)
9 Power out (3.3V)
10 PTT (0R to GND is PTT press, 10k to GND is emergency button press)
11 ACC_ID (33k to GND signals standard microphone)

The Sepura standard microphone uses the pin 10 and pin 11. The advanced microphone (the one with the three buttons more) uses 8 and 9 instead, because it uses a PIC16F688 microcontroller to convert the button presses to a digital signal.

There are some pictures on this German site.

For the STP8X (ATEX) the pinout can be found in this post.