NEC Univerge SV8100 System Hardware Manual page 415

UNIVERGE SV8100/SV8300
System Hardware Manual
6.1.3.2 Busy LED – Red
The Busy LED is controlled by the DSP and indicates the
port status.
6.1.3.3 Application LED – Red/Green (Dual Color)
The Application LED is controlled by the DSP indicates the
state of the software running on the APSU.
6.1.3.4 CompactFlash Card Activity LED – Red
The CompactFlash Card Activity LED is controlled by the
IDE controller and indicates read/write activity on the
CompactFlash card.
6.1.4 Connectors
The following sections go into detail on each of the user interfaces.
6.1.4.1 RS-232 Interface
An RS-232 interface shall be provided as a debug port to the
CPU. The AMD Geode companion chip, (CS5536) provides
a serial port interface. The CS5536 shall be connected to an
Intersil-Harris HIN202ECBN (or equivalent) RS-232
transceiver providing a DTE interface (COM1) with the
following signals: TD, RD, DSR, DTR and GND. The APSU
uses the same 6-pin modular jack as the DSX system. A
standard telephone line cord is used as the RS-232 cable. A
DB9 to 6-pin modular adapter is used on the device end of
the cable. The pin connections of RS-232 signal pairs are
symmetrical around the center line of the 6-pin modular
connector. This signal layout permits the construction of a
null serial cable by simply reversing one of the modular
connectors on the serial cable line cord. The cable used for
a PC type DTE connection is a standard line cord shown in
6.1.4.3 RS-232 Serial Cable
DCE device uses the swapped line cord shown in
RS-232 Serial Cable
Off: Power off or idle.
On: Reset.
Flash: Indicates how many ports on the VM Card are
currently in use. Faster flash rates indicate heavier use.
Off: Power off.
Solid Red/Green (Yellow): Reset.
Flashing Green: OS is running, application not started.
Solid Green: Application running.
Solid Red: Application problem.
(DCE).
Issue 1.0
(DTE). The connection for a
6.1.4.4
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