Agilent Technologies 35900E Series II User manual

Agilent Technologies
Agilent 35900E Series II
Dual Channel Interface
User Manual

User Manual
Notices
© Agilent Technologies, Inc. 2017
No part of this manual may be reproduced in
any form or by any means (including elec-
tronic storage and retrieval or translation
into a foreign language) without prior agree-
ment and written consent from Agilent
Technologies, Inc. as governed by United
States and international copyright laws.
Manual Part Number
G3592-90407
Edition
Third edition, October 2017
Second edition, November 2014
First edition, February 2014
Printed in USA
Agilent Technologies, Inc.
2850 Centerville Road
Wilmington, DE 19808-1610 USA
Warranty
The material contained in this docu-
ment is provided “as is,” and is sub-
ject to being changed, without notice,
in future editions. Further, to the max-
imum extent permitted by applicable
law, Agilent disclaims all warranties,
either express or implied, with regard
to this manual and any information
contained herein, including but not
limited to the implied warranties of
merchantability and fitness for a par-
ticular purpose. Agilent shall not be
liable for errors or for incidental or
consequential damages in connec-
tion with the furnishing, use, or per-
formance of this document or of any
information contained herein. Should
Agilent and the user have a separate
written agreement with warranty
terms covering the material in this
document that conflict with these
terms, the warranty terms in the sep-
arate agreement shall control.
Safety Notices
CAUTION
A CAUTION notice denotes a haz-
ard. It calls attention to an operat-
ing procedure, practice, or the like
that, if not correctly performed or
adhered to, could result in damage
to the product or loss of important
data. Do not proceed beyond a
CAUTION notice until the indicated
conditions are fully understood and
met.
WARNING
A WARNING notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly per-
formed or adhered to, could result
in personal injury or death. Do not
proceed beyond a WARNING
notice until the indicated condi-
tions are fully understood and
met.

User Manual 3
Contents
1 Introduction
Features 8
Independent Analog-to-Digital Converters 9
Real-Time Control 9
Remote Control Bus 9
Digital (TTL I/O) ports 9
Instrument Control Ports 10
Host Computer Communication 10
Front Panel 10
Start/Stop push buttons 10
Run status indicators 10
Hardware monitoring indicators 11
Important Safety Warnings 11
Electrostatic discharge is a threat to 35900E Series II electronics 11
Safety and Regulatory Certifications 12
Information 12
Symbols 13
Electromagnetic compatibility 14
Cleaning 14
Recycling the Product 14
2Setup
To Unpack the Unit 16
Checking Parts and Accessories 16

4User Manual
Line Voltage 16
Configuration Switch 17
3 Computer Connection
Connecting to a TCP/IP Network 20
Restore the default IP address and turn off DHCP 21
Restore default IP address for DHCP 21
Configuring an RS-232 Connection 22
Connecting to a Host Computer Using RS-232 Communications 25
To connect RS-232 communications 25
4 Instrument Connection
Analog Input (Signal) Connection 28
Remote Control Connection 30
Digital I/O Connection 33
Instrument Control Port Connection 36
5Startup
Pre-Run Checklist 38
35900E Series II Power Up 38
Verify 35900E Series II is Ready for Operation 39
In Case of Difficulty 40
6 Parts Replacement
Remove the Top Cover 42
Remove the Front Panel 43
Replace the Main Board 45
Remove the main board 45
Install the main board 46

User Manual 5
7InstrumentParts
Replacement Parts: Covers and Electronics 48
Power Cords 50
A Cables
Analog Signal Cables 52
Remote Control 54
APG Remote Control 55
Bottle Number Cables 56

6User Manual

7
Agilent 35900E Series II Dual Channel Interface
User Manual
Agilent Technologies
1
Introduction
Features 8
Independent Analog-to-Digital Converters 9
Real-Time Control 9
Instrument Control Ports 10
Host Computer Communication 10
Front Panel 10
Important Safety Warnings 11
Safety and Regulatory Certifications 12
Cleaning 14
Recycling the Product 14
The Agilent 35900E Series II Dual Channel Interface (35900E Series II) is a
dual-channel, run-buffered interface that connects analytical instruments to
Agilent data systems. It converts the analog signal from analytical instruments
to digital data and transmits it to the host computer for further processing.
The 35900E Series II is intended for use with both Agilent and non-Agilent
manufactured laboratory instruments with a two-dimensional analog output.

8User Manual
1Introduction
Features
The 35900E Series II (Figure 1) features include the following:
•Data buffering
•Two independent analog-to-digital (A/D) converters, or dual channel
synchronous
•Real-time control
•Instrument control ports
•Host communication
•Front panel indicators that show run status, interface activity, etc.
•External power adaptor with 24 DC output
Figure 1 Agilent 35900E Series II Dual Channel Interface
On/Off Switch

Introduction 1
User Manual 9
Independent Analog-to-Digital Converters
The analog-to-digital channels provide 24-bit analog-to-digital conversion of
up to two independent analog signals. The analog inputs can either be
asynchronous (have no relationship at all to each other) or synchronous
(separate signals, but logically related to the same START reference). To allow
asynchronous operation, each channel has separate Start/Stop switches,
status indicators, and controllable digital I/O. The analog input signal is
digitized by a continuously integrating A/D converter. This means that the
input signal is continuously applied to the converter's input, and because of
that, no portion of the signal is ever lost due to input multiplexing or the
sampling process.
Real-Time Control
The 35900E Series II provides a set of real-time control functions for a host
computer system. These can be separated into two groups:
•Remote Control Bus
•Digital (TTL I/O) Ports
Remote Control Bus
The Remote Control Bus is a hardware interface that provides a set of defined
signals most frequently encountered in the laboratory environment. These
signals include START, STOP, READY and START REQUEST. The 35900E Series II
has one Remote Bus per channel to allow for asynchronous operation. These
connectors are 9-pin "D-Type" female connectors each having eight
bidirectional (input/output) signals.
Digital (TTL I/O) ports
Each channel has a dedicated TTL I/O connector with 16 signal lines. Of the
16, eight are bidirectional (configurable as inputs or outputs for such
functions as valve control) and the remaining eight lines are input-only signals
(for such functions as bottle numbers).

10 User Manual
1Introduction
Instrument Control Ports
There are two RS-232 ports (one for each channel) that may be used to
communicate with RS-232 compatible lab instruments such as certain
autosamplers, balances, or GCs.
Line protocols and operating modes for RS-232 communication are configured
via commands from the host computer.
Host Computer Communication
The 35900E Series II has built-in RS-232 and LAN (TCP/IP) ports for host
communications.
Front Panel
The front panel of the 35900E Series II has two buttons and three LED (light
emitting diodes) indicators for each channel. There are also four indicator
LED indicators at the bottom of the panel to convey general information about
the state of the 35900E Series II interface.
Start/Stop push buttons
Each channel has START and STOP push buttons that may be used to manually
start and stop analytical runs. These push buttons can be individually enabled
or disabled by the host computer software controlling the 35900E Series II.
Run status indicators
Each channel has three LED indicators.
READY—Indicates there is no current activity on the channel and it is ready to
begin a chromatographic run.
RUN—This light indicates a run is in progress on that channel.
NOT READY—This light indicates the channel cannot start another run until
other events are completed.

Introduction 1
User Manual 11
Hardware monitoring indicators
There are four LED indicators on the bottom of the front panel that display the
status of the 35900E Series II.
Important Safety Warnings
Before moving on, there are several important safety notices that you should
always keep in mind when using the 35900E Series II.
Electrostatic discharge is a threat to 35900E Series II electronics
The printed circuit (PC) boards in the 35900E Series II can be damaged by
electrostatic discharge. Do not touch any of the boards unless it is absolutely
necessary. If you must handle them, wear a grounded wrist strap and take
other anti-static precautions. Wear a grounded wrist strap any time you must
access the 35900E Series II internal components.
Table 1 LED monitoring indicators for the 35900 Series II
LED Indicator LED Color Description
ACTIVE Yellow Indicates that there is data present in the interface that
will be lost if the 35900E Series II's power is turned off.
COMM Yellow Indicates that the 35900E Series II is communicating
with the host computer.
FAULT Solid Red Indicates that a nonrecoverable error occurred.
FAULT Blinking Red Indicates that the 35900 Series II is configured to use
DHCP, but has not received an IP address. The red LED
blinks about once per second.
POWER Green Indicates that power is applied to the instrument and
that the on/off switch is turned on.
WARNING
If the power cord insulation is cut or worn, the cord must be replaced. Contact your
Agilent service representative.

12 User Manual
1Introduction
Safety and Regulatory Certifications
The Agilent 35900E Series II Dual Channel Interface conforms to the following
safety standards:
•International Electrotechnical Commission (IEC): 61010–1
•EuroNorm (EN): 61010–1
The Agilent 35900E Series II Dual Channel Interface conforms to the following
regulations
on Electromagnetic Compatibility (EMC) and Radio Frequency
Interference (RFI):
•CISPR 11/EN 55011: Group 1, Class A
•IEC/EN 61326
•AUS/NZ
This ISM device complies with Canadian ICES-001. Cet appareil ISM est
conforme a la norme NMB—001 du Canada.
The Agilent 35900E Series II Dual Channel Interface is designed and
manufactured under a quality system registered to ISO 9001.
Information
The Agilent 35900E Series II Dual Channel Interface meets the following IEC
(International Electro-technical Commission) classifications:
Equipment Class III, Laboratory Equipment Installation Category II, Pollution
Degree 2. Excludes the power adaptor which is ground protected.
This unit has been designed and tested in accordance with recognized safety
standards and is designed for use indoors. If the instrument is used in a
manner not specified by the manufacturer, the protection provided by the
instrument may be impaired. Whenever the safety protection of the Agilent
35900E Series II Dual Channel Interface has been compromised, disconnect
the unit from all power sources and secure the unit against unintended
operation.

Introduction 1
User Manual 13
Symbols
Warnings in the manual or on the instrument must be observed during all
phases of operation, service, and repair of this instrument. Failure to comply
with these precautions violates safety standards of design and the intended
use of the instrument. Agilent Technologies assumes no liability for the
customer’s failure to comply with these requirements.
See accompanying instructions for more
information.
Indicates a hot surface.
Indicates hazardous voltages.
Indicates earth (ground) terminal.
Indicates electrostatic discharge hazard.
Indicates that you must not discard this
electrical/electronic product in domestic
household waste.

14 User Manual
1Introduction
Electromagnetic compatibility
This device complies with the requirements of CISPR 11. Operation is subject
to the following two conditions:
•This device may not cause harmful interference.
•This device must accept any interference received, including interference
that may cause undesired operation.
If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the
user is encouraged to try one or more of the following measures:
1Relocate the radio or antenna.
2Move the device away from the radio or television.
3Plug the device into a different electrical outlet, so that the device and the
radio or television are on separate electrical circuits.
4Make sure that all peripheral devices are also certified.
5Make sure that appropriate cables are used to connect the device to
peripheral equipment.
6Consult your equipment dealer, Agilent Technologies, or an experienced
technician for assistance.
Changes or modifications not expressly approved by Agilent Technologies
could void the user’s authority to operate the equipment.
Cleaning
To clean the unit, disconnect the power and wipe down with a damp, lint-free
cloth.
Recycling the Product
For recycling, contact your local Agilent sales office.

15
Agilent 35900E Series II Dual Channel Interface
User Manual
Agilent Technologies
2
Setup
To Unpack the Unit 16
Checking Parts and Accessories 16
Line Voltage 16
Configuration Switch 17
This section provides procedures for unpacking and configuring the 35900E
Series II.

16 User Manual
2Setup
To Unpack the Unit
1If the 35900E Series II is purchased as part of a system, check the carrier's
papers to verify that you received all containers.
2Inspect the shipping container for damage and watermarks.
3Remove the cables and documentation from the shipping container and set
them aside.
4Unpack the 35900E Series II and inspect it for damage. If you see damage,
keep the carton and all packing materials for the carrier's inspection.
Contact your nearest Agilent Technologies Sales and Service Office
immediately.
Checking Parts and Accessories
1Verify that you have all parts on the packing list. If you suspect that an
option, accessory, or part is missing or incorrect, call your nearest Agilent
Technologies Sales and Service Office immediately.
2Store user information in a safe place.
Line Voltage
The external power adaptor of the 35900E Series II has a universal input range
for line voltage and can be safely connected between 100 Vac and 240 Vac
power sources.

Setup 2
User Manual 17
Configuration Switch
There is a set of 6 configuration switches on the rear panel that control
35900E Series II operation. The default settings are shown in Figure 2. Table 2
describes the individual switch settings.
Figure 2 Configuration switch and default settings
B
A
INSTR PORT
LAN RS-232
BA
REMOTE DIGITAL I/O ANALOG
123 456

18 User Manual
2Setup
Switches 1 and 2 affect the beeper operation.
The remaining switches combine to specify either a test mode or normal
operation for each channel. The test mode provides service technicians with a
diagnostic tool to show the effects of electrical noise on a known test signal.
Switches 3 and 4 combine to specify either a test mode or normal operation
mode for Signal A.
Switches 5 and 6 combine to specify either a test mode or normal operation
mode for Signal B.
Table 2 Configuration switch settings
Switch Function Position Effect
1 Beep/Off Up Causes an audible beep when Start/Stop is pressed.
Down Silent at Start/Stop.
2 HI/LO Up Beep, if any, is loud.
Down Beep, if any, is soft.
3 Channel A -
TEST/NORM
Up Selects stored test chromatogram. Analog input signal ignored.
Down Selects Analog input for Normal Operation.
4 Channel A -
ADD/IGNORE
Up Add signal input to the stored chromatogram. Switch 3 must be in Up
position.
Down Do not add (ignore) signal input to stored chromatogram for Channel A.
5 Channel B -
TEST/NORM
Up Selects stored test chromatogram. Analog input signal ignored.
Down Selects Analog input for Normal Operation.
6 Channel B-
ADD/IGNORE
Up Add Channel B signal input to the stored chromatogram. Switch 5 must be
in Up position.
Down Do not add (ignore) signal input to stored chromatogram for Channel B.

19
Agilent 35900E Series II Dual Channel Interface
User Manual
Agilent Technologies
3
Computer Connection
Connecting to a TCP/IP Network 20
Configuring an RS-232 Connection 22
Connecting to a Host Computer Using RS-232 Communications 25
The 35900E Series II supports TCP/IP LAN (network) and RS-232 connection
types for host computer communications.

20 User Manual
3Computer Connection
Connecting to a TCP/IP Network
The TCP/IP in the 35900E Series II has Ethernet IEEE 802.3 connector type
RJ-45 (twisted-pair cable). Before connecting the 35900E Series II to the
network, the network must be operational. Connect a LAN cable (part number
8121-0940) to both the 35900E Series II and network before turning on the
35900E Series II.
To communicate with the 35900E Series II, you must assign it an IP address
compatible with the site LAN. The 35900E Series II must receive its address
from either a BootP server/service or DHCP server.
For more information on installing and using a BootP server/service, refer to
your Agilent data system instructions.
Figure 3 Network connection
B
A
INSTR PORT
RS-232LAN
BA
REMOTE DIGITAL I/O ANALOG
LAN connector