Maxiflex T2 CPU User Manual
13
-© Omniflex
UMM124XBR04.pdf
Pin number
Description
2
5
Cable screen (S)
8
Signal -
1, 3, 4, 6, 7 and 9
No connection
Table 2.3: Pin allocation of Conet port connector on the M1241B CPU
2.6 Connecting the Conet/m network port (M1243B CPU only):
OMNIFLEX supplies pre-made interface cables for a number of radios, that greatly
simplifies the installation process of the radio. Consult you OMNIFLEX representative for
availability of a cable to suit the radio of your choice.
Pin number
Description
1
M (Push-To-Talk input of radio)
2
M_COM (Push-To-Talk return/ground of radio)
3
Rx+ (Rx Data + or audio ouput)
4
Tx+ (Tx Data/Mic Input+
5
CH_SEL_5 (Channel Select logic inputs must have pull-
up resistors if used on the radio)
6
CH_SEL_4
7
CH_SEL_3
8
CH_SEL_2
9
E (Carrier Detect/Squelch Output. The output from the
radio should be an open collector output)
10
E_COM (Radio Power Supply – typ12V)
11
Rx- (Rx Data - or ground if unbalanced)
12
Tx- (Tx Data/Mic Input Return or Ground if unbalanced)
13
RESET (Can be used as a channel programming strobe
or as a sixth Channel Select Line)
14
CH_SEL_COM (Ground)
15
CH_SEL_1
Table 2.4: Pin allocation of Conet/m port connector on the M1243B CPU
2.7 Applying power for the first time
Once the T2 CPU has been installed into a Maxiflex rack, apply power and the CPU OK LED will
turn ON and remain steady ON until power is removed. If the CPU OK LED remains OFF, then
check the power connections to the PSU module and that the LED indication of the PSU module
is normal. Refer to the Installation Guide of the PSU module to verify it’s correct connection.
The I/O OK LED will only turn ON at first power up if the I/O Modules for this system have been
configured, and the correct I/O modules are installed on the base.
