Installation Page 4-15
RS-232 Serial Communications Port 2
The cable should be equipped with a 9 pin female D connector on
one end and an appropriate connector on the other end.
The COM2 connector J4 on the rear panel of the Model 2010D is
a male type DB-9 connector.
Table 4-5 Communications Port 2 Connections
SIGNAL SIGNATURE 2010D J4
__________ _________________
J4-1 DATA CARRIER DETECT
J4-2 RECEIVE DATA
J4-3 TRANSMIT DATA
J4-4 DATA TERMINAL READY
J4-5 DIGITAL COMMON
J4-6 DATA SET READY
J4-7 REQUEST TO SEND
J4-8 CLEAR TO SEND
J4-9 RING INDICATOR
RS-232 Serial Communications Cable, Model 2010D to PC
A null modem cable is required when connecting the Model 2010D to
a personal computer for downloading software updates, remote
control or other applications. The cable should be equipped with
a 9 pin female D connector on the Model 2010D serial
communication port end for COM1 or COM2 and a 9 pin female D
connector or 25 pin female D connector on the PC end. The pin
outs for the null modem cable are given in Table 4-6. Note that
the Pin 1 (CD) and Pin 6 (DSR) are tied together on each end of
the cable since some terminal programs require the CD line to be
pulled high.
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