T.E.M. A07B500S Manual page 72

N° FUNCTION
COM3B
18
RS485 to N+1 system
19 IN/OUT
EXTERNAL MONO / MPX
5
INPUT ADJUSTMENT
SUBCARRIER 1
4
INPUT ADJUSTMENT
SUBCARRIER 2
15
INPUT ADJUSTMENT
NOMINAL VALUE LF
10
INPUT SETTING
FIXED OR VARIABLE
22
INPUT SETTING
PREEMPHASIS
9
VALUE CHOICE
MONO INPUT ( L / R )
8
IMPEDENCE CHOICE
LEFT INPUT
7
ADJUSTMENT
RIGHT INPUT
6
ADJUSTMENT
SCA1 & SCA2
11-12
INPUTS
3 EXTERNAL MPX INPUT
14 LEFT INPUT
13 RIGHT INPUT
2 RF OUT
1 LINE SWITCH AND FUSE
CONNECTION
1
2
3
PIN 4
NUMBER
5
( DB9 )
6
7
8
9
1
2
3
PIN
4
NUMBER
( DB9 )
5
6
7
8
9
Trimmer RT5 / AUDIO IN board
-2 / +2 dB adj. for 75 Khz modulation frequency
Trimmer RT1 / AUDIO IN board
Trimmer RT2 / AUDIO IN board
Jumpers Z3,Z4,Z5,Z6 / AUDIO IN board
0 , 4.1 , 6 , 12 dBm setting choice
In vaariable position the nominal input value can be changed by
the trimmer of MPX , LEFT and RIGHT
Jumpers Z8,Z2 / AUDIO IN board
50 / 75 microseconds choice
Jumpers Z1,Z7 / AUDIO IN board
600 Ohm / 10 Kohm choice
Trimmer RT4 / AUDIO IN board
-2/ +2 dB adj. for 75 Khz modulation frequency
Trimmer RT3 / AUDIO IN board
-2 / 2 dB adj. for 75 Khz modulation frequency
PIN 1
NUMBER
2
(Cannon)
3
PIN 1
NUMBER
2
(Cannon)
3
6 A FOR 230 Vac / only FF model (very fast)
Pag. 72
A07B500S manual
NC
INPUT RS485 +
INPUT RS485 -
NC
GND
NC
NC
NC
NC
19 Khz sync. out
( 1 Vpp out )
EX Carrier enable
input (input contact
open = enable)
ALARM1
out (closed or open output
contact / Z1, Z2 - MBA board )
ALARM2
out (closed or open output
contact / Z1, Z2 – MBA board )
GND
NC
NC
NC
NC
-20 dBu adj.
-20 dBu adj.
BNC connector
BNC connector
GND
LEFT +
(unbalanced with GND)
LEFT –
(balanced with LEFT+)
GND
RIGHT +
(unbalanced with GND)
RIGHT –
(balanced with RIGHT-)
N connector