| | | | I
| 1 | 2 | 3 | S
|-------|-------|-------| P
| | | | L
| 4 | 5 | 6 | A
|-------|-------|-------| Y
1. This is three different channels things depending on the phone state.
a. When the phone is idle, this shows "Bxxx". "B"
stands for "Broadcast channel" (a logic GSM channel)b. When a phonecall
is in progress, this shows "Sxxx". S stands for "Stand Alone
Dedicated Control Channel" SDCCH for short.
c. When the phoncall in up, this shows "Txxx". "T" Stands
for Traffic channel. The "xxx" thing is the channel number, 1-124.
2. This shows Rx Level. The values displayed is from 0 to 63. Rx Level is a
indicator on how good your reception is for the moment. 0 is a signal strength
of -110dBm. 63 is approx -45 to -50dBm.RXLEV is measured in dBm in such a way
that incoming signal equals -110.5+RXLEV so that a RXLEV at 50 equals an incoming
signal strenght at -50.5 dBm (plus or minus max deviation 0.5dBm)
3. This shows the output power in dBm.
4. This shows the timeslot used for the moment. You can see it when making a
call.
5. This shows Rx Quality. Rx Quality is a measurement of how much error correction
is required to the speech. 0 indicates none and as the figure rises you hear
more pings and pongs on the speech as large parts of the frame are missing.
If you have more RxQ then 5, you are on good way to loose your call. RxQuality
reads 0-7.RXQUAL is measured by using a table wereas the biterrorrate or BER
is interesting and measured in %
RXQUAL table
0 BER < 0,2 (%)
1 0,2 < BER < 0,4
2 0,4 < BER < 0,8
3 0,8 < BER < 1,6
4 1,6 < BER < 3,2
5 3,2 < BER < 6,4
6 6,4 < BER < 12,8 (here we have lost half a burst)
7 12,8 < BER
6. This shows the timing advance. The BS tells the MS to send before it should
just make sure that the MS burst is comming to the BS on the right time. The
TA is measured in halfbits so the distance to the BTS can be calculated as follows=1,11*TA/2.
TimingAdvance reads 0-63. Co-incidentely this tells you how far you are from
the base site in 550metre chunks, up to the theoretical max of 35.2km.
Pinouts
1 In Voice
2 In +5V=External Power, 0V=Battery
3 Out Ext Speak control
4 Analog GND
5 Out Voice
6 Out +5V=POWER ON, 0V=POWER OFF
7 Out Charger control
8 Digital/DC GND
9 In 0V=normal,+5V=test, +12V=test+flash
10 In Hook
11 In TTL serial in
12 Out TTL serial out
13 In 0V for aprox 1 sec = POWER ON/OFF
14 In DC Power supply
Ericsson 628
To view IMEI number enter * # 0 6 #
To view Software Version enter -> * <- <- * <- *
To read all programmed texts enter -> * <- <- * <- * ->
To view phone network lock status enter < * * < (wait 3 sec)
To fast dial press phone number pos nr and # (Example: 1 5 #)
To fast dial last number press 0 #
To reset main menu language to english enter * # 0 0 0 0 #
To see battery level while phone is turned off quickly press and release on/off(NO button).
To see Extended menus (on older versions) go to MISSED CALLS, empty directory, press and HOLD right arrow button, choose menu type
To see Extended menus (on newer versions) go to READ, empty directory, press and HOLD left arrow button, choose menu type
To edit phone book Turn on extended menus and choose "EditPh.Bk".
Command set
The following commands are recongnized by the phone.Use 9600 baud, 1 stopbit,
8 data bits, no parity.
ATA Pick up phone during ring
AT+GMI Manufacturer identification
AT+GMO Request model Identification
AT+GMR Request revision Identification
AT+GMM
ATDxxx; Dial number xxx
ATH Hangup phone
AT+CFUN=? Define levels of fuctionality in the order of power consumed
AT+CFUN=0 Switches off the phone
AT+CBC Query battery level
Each command has to be followed by a 0x0A, 0x0D sequence, that
is carriage return - line feed. These commands will be ackowledged with an 'OK'
prompt. An
incoming call is signalled by the string 'RING' sent by the phone at 9600b in
normal mode.
Portable Handsfree Unit
1 Earphone: 16 Ohm
2 Microphone: <- 2 kOhm
5 Connected to 04 (GND)
Pinouts
Left to right, keyboard up.
1 Audio Out
2 Audio In
3 Accessory Sense. GND to enable External Mic and Speaker (Analog)
4 Audio Signal GND.
5 Portable handsfree In.
6 Music Mute Out, High when phone is used.
7 In Flash Memory Voltage and Service Voltage, In 0V=normal,+5V=test, +12V=test+flash
8 Logic Out, Status On. Sources over 100mA
9 Data Out from Mobile Station. Debug messages appear here at 112KBaud when in debug mode.
10 Digital Ground and DC return
11 Data in
12 DC in for battery charging, DC out for accessory power