Omnitron Systems X21 - Manual
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iConverter
X21 Standalone Module USER MANUAL
The Omnitron
iConverter
®
X21 is a serial to fiber media converter featuring several
configuration modes enabling connection to a wide variety of X.21 and RS-530
applications. Data rates of up to 8Mbps are supported.
T h e X 2 1 s u p p o r ts s ta n d a r d D C E
sourced timing and terminal timing
modes. The included adapter cable
accommodates different connector
g e n d e r t y p e s . T h e X 2 1 f e a t u r e s
local loopback on the serial and fiber
p o r t s t o f a c i l i t a t e t e s t i n g a n d
installations.
INSTALLATION PROCEDURE
1) Configure DIP-Switches
2) Install Standalone Module and Connect Cables
3) Verify Operation
1) CONFIGURE DIP-SWITCHES
FRONT PANEL DIP-SWITCH
SW1 - DCE/DTE
When this DIP-switch is in the “DCE” (default) position, the serial port is configured to
connect to a DCE device. When the DIP-switch is in the “DTE” position, the serial port
is configured to connect to a DTE device.
SW2 - SET CLOCK (RXC) POLARITY
When this DIP-switch is in the
Receive Clock “RC” (default)
position, the clock edge used
to sample the data on the serial
port is defined by the TIA/EIA-
334-C specification. When the
DIP-switch is in the Receive
Clock Inverted “Inv” position,
the data on the serial port is
sampled on the inverted clock
edge.
PIN
Signal Name
Interchange
Circuit
(AKA)
Direction
Notes
DTE
DCE
11
01
Transmit +
Transmit -
T
(TXD)
IN
OUT
02
07
Control +
Control -
C
(RTS)
IN
OUT
08
12
Receive +
Receive -
R
(RXD)
OUT
IN
13
03
Indication +
Indication -
I
(CTS)
OUT
IN
04
09
Signal Element Timing +
Signal Element Timing -
S
(RXC)
OUT
IN
10
14
DTE Signal Element Timing +
DTE Signal Element Timing -
X
(TXC)
IN
OUT
06
Shield Ground
Sheild
N/A
Connect to Chassis Ground
15
Signal Ground
G
(GND)
N/A
Connect to Logic Ground
05
N/A
Spare Pin
Figure E: Serial Port Signal Definitions
3) VERIFY OPERATION
Once the module has been installed and configured per steps 1 and 2, verify the
module is operational by viewing the LED indicators.
The Power LED indicates the module is receiving power.
The Fiber Optic link LED indicates the fiber optic connection has been established.
Verify the serial port is configured for the correct mode of operation. Check the DCE/
DTE and TD/RD LEDs.
LED Function
"Legend"
Color
OFF State
ON State
Power
"Pwr"
Green
No power
Module has power
Fiber Optics
"P1"
Green
No Fiber Link
On: Fiber signal detected
Blinking: Activity
Fiber Optics
"Err"
Amber
No error detected
Error detected on fiber
(No clock or corrupted messages)
Serial Port
"DCE"
Green
Not configured for DCE-facing
Configured for connection to a DCE device
Serial Port
"DTE"
Green
Not configured for DTE-facing
Configured for connection to a DTE device
Timming Mode
"TD/RD"
Green
No activity / No clock detected
Blinking: Activity
Loopback
"Local LB""
Amber
Loopback/Test mode not
enabled
Blinking: Unit in loopback
Figure F: LED Indicators
Form 040-08840-001 A 3/08
Omnitron Systems Technology * 140 Technology Dr. #500 * Irvine, CA 92618
949.250.6510 tel * 949.250.6514 fax * www.omnitron-systems.com
SW1
SW4
Up
Down
Bank 1
SW1
SW4
Up
Down
Front Panel
Figure A: DIP-Switch Location
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