Teledyne T200, Руководство по эксплуатации, Страница: 46 / 425

Getting Started Teledyne API
– T200 NO/NO
2
/NO
X
Analyzer Operation Manual
44
RS-232 (COM1)
: RS-232 (fixed) DB-9 male connector

Baud rate
: 115200 bits per second (baud)

Data Bits
: 8 data bits with 1 stop bit

Parity
: None
COM2
: RS-232 (configurable to RS 485), DB-9 female connector

Baud rate:19200 bits per second (baud)

Data Bits: 8 data bits with 1 stop bit

Parity: None
RS-232 M
ULTIDROP
(O
PTION
62) C
ONNECTION
When the RS-232 Multidrop option is installed, connection adjustments and
configuration through the menu system are required. This section provides instructions
for the internal connection adjustments, then for external connections, and ends with
instructions for menu-driven configuration.
Note
Because the RS-232 Multidrop option uses both the RS232 and COM2 DB9
connectors on the analyzer’s rear panel to connect the chain of instruments,
COM2 port is no longer available for separate RS-232 or RS-485 operation.
ATTENTION
COULD DAMAGE INSTRUMENT AND VOID WARRANTY
Printed Circuit Assemblies (PCAs) are sensitive to electro-static discharges too
small to be felt by the human nervous system. Failure to use ESD protection
when working with electronic assemblies will void the instrument warranty. For
information on preventing ESD damage, refer to the manual, Fundamentals of
ESD, PN 04786, which can be downloaded from our website at
http://www.teledyne-api.com under Help Center > Product Manuals in the
Special Manuals section.
In each instrument with the Multidrop option there is a shunt jumpering two pins on the
serial Multidrop and LVDS printed circuit assembly (PCA), as shown in Figure 3-15.
This shunt must be removed from all instruments except that designated as last in the
multidrop chain, which must remain terminated. This requires powering off and opening
each instrument and making the following adjustments:
1. With
NO power
to the instrument, remove its top cover and lay the rear panel open
for access to the Multidrop/LVDS PCA, which is seated on the CPU.
2. On the Multidrop/LVDS PCA’s JP2 connector, remove the shunt that jumpers Pins
21

22 as indicated in. (Do this for all but the last instrument in the chain where
the shunt should remain at Pins 21

22).
3. Check that the following cable connections are made in
all
instruments (again refer
to Figure 3-15):
 J3 on the Multidrop/LVDS PCA to the CPU’s COM1 connector
(Note that the CPU’s COM2 connector is not used in Multidrop)
 J4 on the Multidrop/LVDS PCA to J12 on the motherboard
 J1 on the Multidrop/LVDS PCS to the front panel LCD
06858E DCN7057