STEP X - Name of Step
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ME890A-R2
CATX LINE
DRIVER
QUICK START GUIDE
STEP 1 - Connect the local unit to a DTE device
CO NNE CT TH E DTE DEVICE
Connect the local unit's DB9 female connector
to a PC or Data Terminal Equipment (DTE)
device.
TABLE 1-1. DB9 CONNECTOR PINOUT
DB9 SIGNAL NUMBER DB9 SIGNAL NAME LOCAL DCE REMOTE DTE
1 Carrier Detect Asserted high No connection
2 Received Data Output Input
3 Transmitted Data Input Output
4 Data Terminal Ready No connection Asserted high
5 Signal Ground RS-232 Ground RS-232 Ground
6 Data Set Ready Asserted high No connection
7 Request To Send Input Output
8 Clear To Send Output Input
9 Ring Indication No connection No connection
LOCAL UNIT’S
DB9 FEMALE CONNECTOR
STEP 2 - Connect the remote unit to a DCE device
CO NNE CT TH E DCE DEVICE
Connect the remote unit's DB9 male connector
to a Data Communication Equipment (DCE)
device.
REMOTE UNIT’S
DB9 MALE CONNECTOR
NOTES
DCE = Data Carrier Equipment (configured to connect to a PC with a straight-pinned cable)
DTE = Data Terminal Equipment (configured to connect to a DCE device with a straight-pinned cable)
STEP 3 - Connect local and remote units together
CONNECT LOCAL AND REMOTE UNITS
Connect the local and remote units together
with a straight-through CAT5 or CAT6 twistedpair cable.
BLOCK DIAGRAM
LOCAL OR REMOTE UNIT’S
RJ-45 FEMALE CONNECTOR
STEP 4 - Power on the line drivers
POWE R ON
1.Once all connections are made,
use the supplied 5-VDC power supplies
to power on the line drivers.
2. Apply power to your equipment.
LOCAL OR REMOTE UNIT’S
POWER CONNECTOR
TYPICAL APPLICATION
RS-232 SENSO R OR
CONTROLLER
(DCE DEVICE)
5-VDC POWER
SUPPLIES
PC (DTE DEV ICE)
LOC AL U NIT
(ME890A-R2)
REMOT E UNIT
(ME890A-R2)
STEP X - Name of Step
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