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== Pinout ==

UNKNOWN CONNECTOR

{| {{border}}
! Pin !! Description
|-
| 1   || + external power supply (7.2Volt - 600mA)
|-
| 2   || RS232 input (TTL)
|-
| 3   || GND (digital)
|-
| 4   || RS232 output (TTL)
|-
| 5   || +5V output
|-
| 6   || Test. Switch phone off and provide +5V and switch back on. (set comms at 9600, n,8,1)
|-
| 7   || Mute
|-
| 8   || Internal/external mic and ear (0=External - open=Internal)
|-
| 9   || GND (analogic)
|-
| 10  || ? Related to Mic/Speak
|-
| 11  || BF in
|-
| 12  || BF out
|}

== Contributions ==

* [[User:Joakim|Joakim Ögren]]

== Sources ==

* Ericsson 688/888 pinout at [http://www.technick.net/ Technick.net]

[[Category:Connector]]
[[Category:Cellular]]