Nokia 2120 Field Test Screens by NULL DEVICE
--------------------------------------------
special thanks to C.Mayfield (cmayfiel@metrolink.net) and Szuhai Reneefor
for some of the
information.

The field test display can be activated in the NAM programming procedure.
These display are not meant for use by the end user.

There are a total of four field test display. Number four is not
implemented. The display number is shown in the top right corner of the
screen. Use the up/down arrow keys to switch between different displays. You
can toggle the actual readings and the alpha explanations of what they mean
by pressing the "ABC" key.

Screen 1

(Analog)
+----------+
|rrrr  s  d|
|cccc  l  a|
|CS-state  |
+----------+

(Digital)
+----------+
|rrrr DDD d|
|cccc  l  a|
|S   BB  TT|
+----------+

rrrr = received Signal strength (dBm)
s    = sat color 0-2 (- = not locked)
d    = data receiving status
       0 = no sync/no data
       1 = sync/ not able to read
       2 = reading correcting
       3 = reading no correction
DDD  = DVCC 1-255 (- = NOT DVCC)
cccc = Channel 0001-1023
l    = Tx level (0 - 7, - = TxOff)
a    = audio state (0 = Off, 1 = On)
S    = slot 1 to 3
BB   = BER in %
TT   = last received time alignment value 0-31

CS-State:-
IDLE = IDLE
SCAN_PCH = scanning paging channel
SCAN_PDCH = scanning paging cahnnel (?)
SCAN_SDCH = scanning paging cahnnel (?)
TCH = ??
ACCESS = incoming or outgoing data
VCH = ??
OOR = No service
conversat = talking


Screen 2
+----------+
|ENCR  CIPH|
|DTX  XSTBY|
|CS-state  |
+----------+

ENCR = When message encryption is on
CIPH = When Ciphering is on
DTX  = When DTX is on
XSTBY= When enabled standby is on


Screen 3
+----------+
|bVo mod bs|
|Tbat1  Tb2|
|Wpwm FCmAh|
+----------+

bVo  = battery voltage
mod  = charging status
       FAS = Fast Charge
       CUL = Cold Charge
       MAI = Maintenance
       ERR = Wrong charger or battery not OK
       TXO = Tx-On charge
       *** = Charger Disconnected
bs   = Bettery is Full/Reason for Fast Charge terminated
       ti = max. Charge Time elapsed
       DV = dV/peak value detected (FULL)
       BV = Battery Voltage max limit
       BT = Battery temp max limit (OVER HEAT)
       ** = Battery is NOT full
Tbat1 = Battery Temp. a/d reading.
Tb2   = (Not Implemented)
Wpwm  = PWM output (250 for fast charge, 60-68 for MAI)
FCmAh = mAh rating of charge given to the battery


Screen 4
+----------+
|ChargV:NNN|
|ST hex des|
|B:LLLL KKK|
+----------+

Screen 4 is NOT IMPLEMENTED.

--end