48
T2000 Radio Encryption
M2259-00-200-812
Encrypted Radio Programming and Service Manual
Copyright TEL
programmed, this button function is set to
Aux, Latching
.
The low voltage reset from the radio is used to reset the module circuit.
Signal levels and pin assignments
5.2
Programming the T2000 radio
Standard radio programming software is used.
Ensure the
Accessory
function key is enabled and configured to
latching
. For T2000 versions
with no accessory key, set a function (
Fn
) key for this function.
5.3
Programming the Encryption Module
Note:
To set up a T2000 radio as an OTAR programming radio, it should have a flex fitted,
but no encryption module.
Equipment setup and programming instructions are described in the Transcrypt Programming
section on page 69 or the Midian Programming section on page
79, depending upon the origin of
the encryption module.
Refer also to programming and service manuals with your Transcrypt or Midian encryption
module and programmer.
Service Desk OTAR programming may be unsuccessful if:
the target radio is open during programming
the programming radio and the target radio are oriented differently eg one laying down, one
upright
Function
Mode Name Pin Module
T2000
Power Supply
V+
1
5V regulated
Reset
I/P
RS
2
Active low
Resets whenever supply lower
than 4.75V
Tx pressel
I/P
PTT
3
Active low
5V – 0
Busy
I/P
RX
4
Active low
5V – 0
Mode
I/P
MO
5
Active low
Level sensitive
Data to Scrambler
I/P
D-SC
6
Hardwired module
programming I/P
If reqd.
Data to Radio
O/P
D-RA
7
Hardwired module
programming O/P
If reqd.
Mode Indicator
O/P
IND
8
Active high
3mA into LED
Emergency
I/P
EMG
9
Active Low
Module pull-up to 5V
Code select 8
I/P
CS8
10
Active Low
Module pull-up to 5V
Code select 4
I/P
CS4
11
Active Low
Module pull-up to 5V
Code select 2
I/P
CS2
12
Active Low
Module pull-up to 5V
Code select 1
I/P
CS1
13
Active Low
Module pull-up to 5V
Ground
Gnd
14
Transmitter to
scrambler
I/P
TX-SC 15
AC coupled to 250Hz
300 mV p-p at 1kHz for 2/3
max deviation
Scrambler to
transmitter
O/P
SC-TX 16
DC coupled
Approx. unity thru gain
Receiver to scrambler I/P
RX-SC 17
AC coupled to 250Hz
650 mV p-p at 1kHz for 2/3
max deviation
Scrambler to Receiver O/P
SC-RX 18
DC coupled
Approx. unity thru gain
Audio alert
O/P
AL
19
DC Coupled
Trunking delay
I/P
TRK
20
Provision for future
