5.1 Configuration
5-5
5.1.3 Control unit, FS-2570C
Two control units can be connected to the transceiver unit. The system is turned on and
off by the control unit connected to [CONT-1] port on the transceiver unit. The control
unit communicates with the transceiver unit, using RS-485. The LINE IN/OUT level
between two units is 600 Ω/-10 dBm.
The printer, PP-510 is connected to the control unit connected to [CONT-1] port for
printing DSC and NBDP messages. When IB-581/583 is used as a NBDP terminal, the
printer is connected via IF-8500.
Fig.5.1.3 Block diagram of FS-2570C
Table 5.1.2 lists the boards in FS-2570C.
Table 5.1.2 Boards in FS-2570C
Unit Board Type Function Remarks
C-IF 05P0730
Consisting of;
1) Connectors for external units
2) Volume adjuster
3) Audio power amplifier, TA7752AP
C-CPU 05P0729
The C-CPU communicates with;
1) TR unit, using RS-485
2) NBDP terminal, using RS-232C
3) Printer, using Centronics
4) Hook and PTT signal detectors
FS-1570C
PANEL 05P0728 Keys and LCD
FS-1570
/2570
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