Technical data

Making the Hardware Connections
Documentation Number: LES40xA-1105m Chapter 2 11
Black Box Corporation - 1000 Park Drive - Lawrence, PA 15055-1018
www.blackbox.com -- Tech Support and Ordering: 724-746-5500 - Fax: [phone]
Serial Port(s)
• 1 Port Industrial Serial Server: One serial port with two connector
options: one (DB-9M) or one five-terminal removable terminal block
(DIP switch selectable)
• 2 Port Industrial Serial Server: Two serial port connectors (DB-9M)
• 4 Port Industrial Serial Server: Four serial port connectors (DB-9M)
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Refer to Appendices A, B and C for connection pin-outs.
Power Connector
The power connector is a removable terminal block with four terminals.
From top to bottom the terminals are:
Terminal Connect to Description
GND
Negative side of DC
power supply (if DC
power used)
Also connect negative
side of Backup DC
power supply (if used)
Internally, the chassis ground of the Serial
Server is connected to this terminal.
AC In
One side of AC power
supply (if AC power
used)
AC/DC +
In
The other side of AC
power supply (if AC
power used)
OR
Positive side of DC
power supply (if DC
power used)
Either AC or DC power can be used to
power Serial Servers. Power supply can
voltages range from 9 V to 48 VDC or 8 V
to 24 VAC.
Backup
DC+ In
Positive side of Backup
DC power supply
Backup power must be DC voltage and can
be any voltage between 9 VDC and 48
VDC.
Serial Server/Port Operational Modes
Using the Serial Server Manager, Web Server or Telnet the Serial Server
can be put into Console Mode, Default Mode or Upgrade Mode. The serial
ports can be configured for RS-232, RS-422, RS-485H (half duplex) or RS-
485F (full duplex) operation. The server also can be put into
Console Mode
by placing the
Run/Console switch in the Console position.
Making the Hardware Connections
12 Chapter 2 Documentation Number: LES40xA-1105m
Black Box Corporation - 1000 Park Drive - Lawrence, PA 15055-1018
www.blackbox.com -- Tech Support and Ordering: 724-746-5500 - Fax: [phone]
Default Mode
When Default Mode is selected and the server properties are Updated
(
Saved) all the configuration settings return to their default values.
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Refer to Chapter 5 for details on Serial Server Configuration settings. See
Chapter 12 for Serial Server default parameters.
Console Mode
In Console Mode the Configuration Menu can be accessed from a PC by
connecting its RS-232 serial port to the 1 Port Industrial Serial Server
serial port or 2 Port Industrial Serial Server Serial Port 1. Since the
computer is a DTE device, and the serial ports are configured as DTEs (with
DB-9M connectors), a null modem crossover cable must be used.
In
Console Mode the default serial port settings are: 9600 baud, 8 data bits,
No parity, and 1 stop bit. From Windows, HyperTerminal with VT100
terminal emulation can be used for
Console Mode configuration.
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Refer to Chapter 9 for details on Console Mode
Upgrade Mode
In Upgrade Mode firmware can be uploaded from a PC via its serial port to
the 1 Port Industrial Serial Server serial port or 2 Port Industrial Serial
Server Serial Port 1. Upgrading also can be accomplished via the network
connection, using the Serial Server Manager software and a virtual COM
port.
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Refer to Chapter 8 for details on Upgrade Mode
RS-232 Mode
In RS-232 Mode the currently selected serial port is configured as an RS-232
interface supporting eight RS-232 signal lines plus Signal Ground and is
configured as a DTE, like a computer. Signals are single ended and
referenced to Ground. To use handshaking, Flow Control must be set to
RTS/CTS during configuration.