Technical data
Making the Hardware Connections
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Package Checklist
ESR90x Serial Servers are shipped with the following items included:
9 Serial Server Module
9 This Operation Manual
9 CD-ROM disc with manual, VLINX ESP Manager and Virtual COM
Driver software for Windows 98/ME/2000/XP/NT 4.0
1
GND
AC In
AC/DC+ In
Backup DC+ In
Link
Ready
Po wer
Reset
Run Console
Et her ne t
2
1
RX TX RX TX
V ol ta ge R ang e:
9-48VDC
8-24VAC
ESR902
1
GN D
AC I n
AC/DC+ In
Ba c ku p D C + In
Link
R ead y
Po wer
Reset
Run
Console
Ether net
1
RX TX
V ol tage Range:
9-48VDC
8-24VAC
ESR901
1
RS-232/422/485
DB9 Terminal
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/T
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1
GN D
AC I n
AC/DC+ In
Backup DC + In
Link
R ead y
Power
Reset
Run Console
Ethe rn et
Voltage Range:
9-48VDC
8-24VAC
ESR904
2
1
RX TX RX TX
4
3
RX TX RX TX
Figure 5. Front View of the ESR901, ESR902 and ESR904
Serial Servers
Manual Documentation Number: ESR90x-1705m Chapter 2 9
B&B Electronics Mfg Co Inc – 707 Dayton Rd - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com
B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com
Making the Hardware Connections
ESR90x Indicators, Switches and Connectors
Indicators
• One bi-color Link LED (Yellow = 10BaseT, Green = 100Base T)
• One green Ready LED (flashing = system ready)
• One red Power LED
• One red RX LED and one green TX LED for each serial port
Switches
Reset
A recessed reset switch that allows the united to be reset. Insert a small
plastic tool, press lightly and hold for three seconds. The Link and Ready
lights will go out and then come back on.
Run/Console Switch
A recessed single DIP (dual inline package) switch that allows the Serial
Server to be switched between Run Mode and Console Mode. When
switched to the Console position the Serial Server enters Console Mode. This
allows you to configure the Serial Server from a PC running a terminal
program such as HyperTerminal without connecting the server to the
network. To communicate with the connected serial device the switch must
be returned to “Run” position.
DB-9/Terminal Switch (ESR901 only)
Allows connection to the serial port (RS-232, 422 or 485) via the DB-9M
connector or the five-terminal removable terminal block.
Connectors
Ethernet Connector
One standard RJ-45 receptacle that allows the Serial Server to be connected
to an Ethernet hub, switch, or wall plate using a standard straight-through RJ-
45 (male) Ethernet cable. To connect directly to an RJ-45 Ethernet port on a
PC or laptop a crossover Ethernet cable must be used.
10 Chapter 2 Manual Documentation Number: ESR90x-1705m
B&B Electronics Mfg Co Inc – 707 Dayton Rd - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com
B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com