Kenwood TS-990S - Manual (Page 35)

PANEL DESCRIPTION 2
2-9
Index Contents
REAR PANEL
a
u
v
a ANT 1 to ANT 4 (Antenna 1 to Antenna 4) connectors
For use with 50Ω antenna. These SO-239 / M-type
coaxial connectors can connect a maximum of four
antennas. {page 1-8}
Refer to the antenna systems conceptual drawing shown
below:
▽ ▽ ▽ ▽
1 2 3 4
ANT
AT
RX
TX
RX OUT RX IN
MAIN RX ANT
SUB RX ANT
ON
ON
OFF
OFF
MAIN
BAND
RECEIVER
SUB
BAND
RECEIVER
TX
Antenna Selector for the Main Band
Antenna Selector for the Sub-band
b REF I/O (10 MHz) connector
Sends and receives the 10 MHz reference
signal. {page 16-22}
c AT Connector
Connect a control cable for an external antenna
tuner. {page 1-8}, {page 1-10}
Refer to the instruction manuals supplied with the antenna
tuner for further details.
• Input Impedance: 50Ω
• Input Level: 0 dBm ± 10 dB
• Output Level: 0 dBm
d KEYPAD jack
You can connect a personalized (self-made) PF keypad to
the KEYPAD connector. You can assign the desired function
to the keypad from the specified functions. {page 16-7}
e COM connector
This is an RS-232C connector for connection to a PC.
This enables PC control and memory management.
Connects to a PC using a commercially available
RS-232C straight cable; do not use a "crossed" type
cable. {page 1-5}, {page 1-10}}
f
Main Power (I/O) switch
Shuts down (O) or applies (I) the main power source to the
transceiver.
While the main power (I/O) switch is in the "O" position,
you cannot start up the transceiver by pressing [ ]
( ). {page 4-1}
g AC IN connector
This is the connector for the AC main power source input.
Use the supplied AC power cable to connect to a 120 V rating
AC outlet (K-Type) or a 220-240 V rating AC outlet (E-Type).
Do not use a power cable other than supplied with this
product. Do not use or modify K-Type Cable for AC 220 - 240
V Operation. Do not use or modify E-Type Cables for AC 120
V Operation. {page 1-1}
h GND terminal
Connects to ground. Ensure that this terminal has
been grounded, to prevent electric shock or equipment
interference. {page 1-1}
i EXT SP1 (External Speaker 1) jack
j
EXT SP2 (External Speaker 2) jack
Connects to an external speaker. Use only external
speakers with an impedance 4Ω to 8Ω. You can configure
the audio signal sent to the external speaker using the
menu. {page 16-17}
If an external speaker is connected to the EXT SP1
connector, the audio line to the internal speaker is muted. If
an external speaker is connected to the EXT SP 2 connector,
the audio line to the internal speaker will not be muted.
k LAN connector
Connects to a PC and LAN so as to operate with KNS
(KENWOOD NETWORK COMMAND SYSTEM) or to
automatically correct the clock. {page 1-9}