NXR-901
38
CONTROL I/O D-sub 25-pin Connector
Pin
No
Pin Name I/O
Signal
Type
Signal Summary
Specifi cation
Min
Typ
Max
Unit
Remarks
1
NC (RSSI)
-
-
-
-
-
-
-
-
-
2
NC
-
-
-
-
-
-
-
-
-
3
NC
-
-
-
-
-
-
-
-
-
4
AI1
I
Digital
Programmable
Function Input 1
/CMOS
VIH
0.8Vcc
-
Vcc
V
Vcc=5V±2%
VIL
0
-
0.2Vcc
V
Input impedance
-
47k
-
47k
PU to Vcc
5
AI2
I
Digital
Programmable
Function Input 2
/CMOS
VIH
0.8Vcc
-
Vcc
V
Vcc=5V±2%
VIL
0
-
0.2Vcc
V
Input impedance
-
47k
-
47k
PU to Vcc
6
AI3
I
Digital
Programmable
Function Input 3
/CMOS
VIH
0.8Vcc
-
Vcc
V
Vcc=5V±2%
VIL
0
-
0.2Vcc
V
Input impedance
-
47k
-
47k
PU to Vcc
7
DG
-
GND
Digital GND
-
-
-
-
-
-
8
TD
I
Analog
TX Data Input
(signaling)
INPUT: 0.1kHz/0.5Vp-p
0.7
0.75
0.8
kHzDEV
NFM
Input impedance
-
600
-
600
PD is applied
to GND.
9
TA
I
Analog
TX Audio Input
(voice)
1kHz/60% Dev
270
280
290
mV
NFM
Input impedance
-
600
-
600
PD is applied
to GND.
10
RD
O
Analog
RX Data Output
(signaling)
Not squelched
INPUT: 60% Dev.
75
80
85
mV
-
11
RA
O
Analog
RX Audio Output
(voice)
Squelched
INPUT: 60% Dev.
380
400
420
mV
-
12
RXG
-
GND
RX Signal GND
-
-
-
-
-
-
13
SPM
I
Digital
Speaker Mute
/CMOS
VIH
0.7Vcc
-
5.5
V
Vcc=3.3V±2%
VIL
-
-
0.3Vcc
V
Input impedance
-
47k
-
47k
PU to Vcc
14
BER_CLK
O
Digital
for Bit Error Rate
Clock
VOH (IO=–50µA)
Vcc–0.1
Vcc
-
V
VOL (IO=50µA)
-
0
0.1
V
15
EMON
I
Digital
External Monitor
Switch
VIH
0.8Vcc
-
Vcc
V
Vcc=5V±2%
VIL
0
-
0.2Vcc
V
Input impedance
-
47k
-
-
16
EPTT
I
Digital
External PTT Switch
VIH
0.8Vcc
-
Vcc
V
Vcc=5V ±2%
VIL
0
-
0.2Vcc
V
Input impedance
-
47k
-
47k
PU to Vcc
17
SC
O
Digital
Squelch Control
VOH (IO=–200µA)
Vcc–2.0
-
Vcc
V
VOL (IO=200µA)
-
-
0.45
V
18
BER_DAT
O
Digital
for Bit Error Rate
Data
VOH (IO=–50µA)
Vcc–0.1
Vcc
-
V
VOL (IO=50µA)
-
0
0.1
V
TERMINAL FUNCTION
Summary of Contents for NEXEDGE NXR-901
Page 154: ...1 E CN300 RX_IF_VN ...