1
PANEL DESCRIPTION
1-17
DATA2 socket information
D
DATA2
PIN No.
NAME
DESCRIPTION
SPECIFICATIONS
q w
e
r
t
y
Rear panel view
1
DATA IN
Input terminal for data transmit.
( 1200 bps: AFSK/
9600 bps: G3RUH, GMSK)
Input level (1200 bps):
Input level (9600 bps):
100 mV
0.2 to 0.5 Vp-p
2
GND
Common ground for DATA IN, DATA
OUT and AF OUT.
———
3
PTT
PTT terminal for packet operation.
Connect to ground to activate the
transmitter.
Input voltage (High):
Input voltage (Low):
2.0 V to 20.0 V
–0.5 V to +0.8 V
4
DATA OUT Data out terminal for 9600 bps opera-
tion only.
Output impedance:
Output level:
10 k
˘
1.0 Vp-p
5
AF OUT
Data out terminal for 1200 bps opera-
tion only.
Output impedance:
Output level:
4.7 k
˘
100–300 mV rms
6
SQL
Squelch out terminal. This pin is
grounded when the transceiver re-
ceives a signal which opens the
squelch.
• To avoid interfering transmissions,
connect squelch to the TNC to inhibit
transmission when squelch is open.
• Keep RF gain at a normal level, other
-
wise a “SQL” signal will not be output.
SQL open:
SQL closed:
Less than 0.3 V/
5 mA
More than 6.0 V/
100 µA
8
1
2
3
4
7
6
5
1
2
3
4
7
6
5
q w e r
t y u i
o !0 !1 !2
!3
Connect to ACC socket
ACC 1
ACC 2
q
FSKK
w
GND
e
HSEND
r
MOD
t
AF
y
SQLS
u
13.8 V
i
ALC
q
8 V
w
GND
e
HSEND
r
BAND
t
ALC
y
VSEND
u
13.8 V
• When connecting the ACC conversion cable (OPC-599)
Microphone connector information
D
MIC
PIN No.
NAME
DESCRIPTION
SPECIFICATIONS
1
2
3
4
5
6
7
8
Rear panel view
1
8 V
+8 V DC output.
Maximum 10 mA
2
MIC U/D Frequency Up/Down
UP: Ground
DN: Ground through 470
˘
3
M8V SW
HM-151 connection
Ground to indicate the HM-151 is connected.
When the HM-151 is not connected; outputs an AF.*
1
—
4
PTT
PTT input
—
5
MIC E
Microphone ground
—
6
MIC
Microphone input
—
7
GND
Ground
—
8
DATA IN
When the HM-151 is connected; HM-151 data input
—
SQL SW
When the HM-151 is not connected; Squelch switch
Open: ‘Low’ level
Close: ‘High’ level
*
1
You can change this setting in “MIC AF Out” of the “Function” Set mode. (p. 6-6)
SET
> Function >
MIC AF Out
