Agilent 37717C Remote Control Manual

HP 37717C
Communications
Performance Analyzer

Remote Control
Manual

 Copyright Hewlett­Packard Ltd.1998

All rights reserved.
Reproduction, adaption,
or translation without prior
written permission is
prohibited, except as
allowed under the
copyright laws.

HP Part No. 37717-90430

First edition, 11/98

Printed in U.K.

Warranty

The information contained
in this document is subject
to change without notice.

Hewlett-Packard makes no
warranty of any kind with
regard to this material,
including, but not limited
to, the implied warranties
or merchantability and
fitness for a particular
purpose.

Hewlett-Packard shall not
be liable for errors
contained herein or for
incidental or
consequential damages in
connection with the
furnishing, performance,
or use of this material.

WARNING

Warning Symbols Used
on the Product

!

The product is marked
with this symbol when the
user should refer to the
instruction manual in order
to protect the apparatus
against damage.

The product is marked
with this symbol to
indicate that hazardous
voltages are present

The product is marked
with this symbol to
indicate that a laser is
fitted. The user should
refer to the laser safety
information in the
Calibration Manual.

Hewlett-Packard Limited
Telecommunications Networks Test Division
South Queensferry
West Lothian, Scotland EH30 9TG

Remote Control Manual

HP Part Number 37717-90430

Printed in U.K. November 1998

HP 37717C Communications
Performance Analyzer

In This Book

This manual contains all the information necessary for remote control of the HP
37717C Communications Performance Analyzer.

4

Contents

1 Methods of Remote Control

Methods of Remote Control 1-2
Connecting the HP 37717C to HP-IB 1-3

Operating Distances 1-3
Communication with the System Controller 1-3

Connecting the HP 37717C to RS-232-C 1-4

Terminal Mode 1-4
Computer Mode 1-6
Communication with the Terminal/Computer 1-6

Connecting the HP 37717C to a LAN 1-10

Current Settings 1-11
New Settings (BOOTP) 1-11
New Settings (Keyboard Entry) 1-12

To Initialize the HP 37717C 1-14
Remote Control Hints & Tips 1-15

Default Settings 1-15
Instrument Coupling 1-15
Error Checking 1-15
Command Completion 1-16
Setup Delays 1-16
Status Registers 1-16
Gating Control 1-17
Frequency Offsets 1-18
User Locks 1-18

2 Common Commands

Common Commands 2-3
SCPI Command Format 2-3

Command Syntax 2-3

v

Contents

SCPI Long Form Command Headers 2-4
Linking Command Statements 2-4
Parameters 2-4

Remote Control Commands 2-6
Instrument Options 2-7
INSTrument subsystem 2-8
SOURce subsystem 2-9
SOURce subsystem - Transmitter Common Commands 2-11
INPut subsystem 2-14
SENSe subsystem 2-15
SENSe subsystem - Receiver Common Commands 2-17
SENSe subsystem - Test Timing 2-20
SENSe subsystem - Analysis Control 2-22
SENSe subsystem - Result Returning Commands 2-22

Common Results 2-22

SENSe subsystem - Trouble Scan Results 2-23
Common System Commands 2-26
SENSe subsystem - Configuring Graphics 2-27
SENSe subsystem - Managing Graphics Stores 2-29
SENSe subsystem - Retrieving Graphics Store Data 2-31
SENSe subsystem - Retrieving Data for a Single Graph 2-33
SENSe subsystem -Obtaining Graphics End of Measurement Results 2-35
STATus subsystem 2-44
SYSTem Subsystem 2-47
IEEE common capabilities 2-62

3 PDH Command Reference

PDH Command Reference 3-3
OUTPut subsystem 3-4
SOURce subsystem- Transmitter Unstructured PDH Commands 3-9
SOURce subsystem -Transmitter Structured PDH Commands 3-17

vi

Contents

SOURce subsystem - Transmitter SPDH Test Signal Settings Commands 3­28
SOURce subsystem - Transmitter SPDH Test Function Commands 3-36
INPut subsystem 3-51
SENSe subsystem - Receiver Unstructured PDH Settings 3-57
SENSe subsystem - Receiver Structured PDH Settings 3-62
SENSe subsystem - Receiver SPDH Test Signal Settings Commands 3-68
SENSe subsystem - Receiver SPDH Test Function Commands 3-74
SENSe subsystem - Analysis Control 3-75
SENSe subsystem - Alarm Scan Control 3-80
SENSe subsystem - SPDH Round Trip Delay Control 3-81
SENSe subsystem - Result Returning Commands 3-82

Unstructured PDH Short Term Results 3-82
Unstructured PDH Cumulative Results 3-82
Unstructured PDH and Payload G.821 Analysis Results 3-83
Unstructured PDH M.2100 Analysis Results 3-83
Unstructured PDH FAS Error Analysis Results 3-84
Unstructured PDH CRC Error Analysis Results 3-84
Unstructured PDH REBE Error Analysis Results 3-85
Unstructured PDH Alarm Seconds Results 3-85
Frequency Results (PDH and SPDH) 3-86

3-86
Structured PDH Short Term Results 3-86
Structured PDH Cumulative Results 3-88
Structured PDH and Payload G.821 Analysis Results 3-89
Structured PDH 140 Mb/s G.826 Analysis Results 3-89
Structured PDH 34 Mb/s G.826 Analysis Results 3-90
Structured PDH 8 Mb/s G.826 Analysis Results 3-91
Structured PDH 2 Mb/s G.826 Analysis Results 3-92
Structured PDH DS1 G.826 Analysis Results 3-93
Structured PDH DS3 G.826 Analysis Results 3-94
Structured PDH BIT G.826 Analysis Results 3-95

vii

Contents

Structured PDH M.2100 Analysis Results 3-95
Structured PDH M.2110 Analysis Results 3-97
Structured PDH M.2120 ANALysis Results 3-98
Structured PDH 2 Mb/S FAS Error Analysis Results 3-98
Structured PDH 8 Mb/S FAS Error Analysis Results 3-99
Structured PDH 34 Mb/S FAS Error Analysis Results 3-99
Structured PDH 140 Mb/S FAS Error Analysis Results 3-100
Structured PDH CRC Error Analysis Results 3-100
Structured PDH REBE Error Analysis Results 3-101
Structured PDH Alarm Seconds Results 3-102
Structured PDH Round Trip Delay Results 3-102

FETCh subsystem 3-103

4 SDH Command Reference

SDH Command Reference 4-3
OUTPut subsystem 4-4
SOURce subsystem - Transmitter SDH Settings Commands 4-7

SDH Clock settings 4-7
Thru mode settings 4-9
SDH Mapping Settings 4-11
AU Layer Selection 4-11
TU Layer Selection 4-12
Payload Layer Selection 4-13
TUG Channel 4-14
TU Payload and Test Pattern 4-15
Background Settings 4-18
Old Commands 4-22

SOURce subsystem - Transmitter SDH OVERHEAD SETUP 4-23
SOURce subsystem - Transmitter SDH Test Function Commands 4-36

viii

Contents

INPut subsystem 4-63
SENSe subsystem - Receiver SDH Settings 4-67

SDH Mapping settings 4-67
AU Layer Selection 4-68
TU Layer Selection 4-68
Payload Layer Selection 4-69
TUG Channel 4-70
TU Payload and Test Pattern 4-71
Old Commands 4-75

SENSe subsystem - Receiver SDH Test Function Commands 4-76
SENSe subsystem - Alarm Scan Control 4-83
SENSe subsystem - SDH Tributary Scan Control 4-85
SENSe subsystem - Optical Power Measurement Settings 4-87
SENSe subsystem - Result Returning Commands 4-88

Frequency Results (SDH) 4-88
SDH Short Term Results 4-88
SDH Cumulative Results 4-89
SDH RS B1 BIP Analysis Results 4-90
SDH MS B2 BIP Analysis Results 4-90
SDH Path MS FEBE Analysis Results 4-91
SDH Path B3 BIP Analysis Results 4-92
SDH Path FEBE Analysis Results 4-92
SDH Path IEC Analysis Results 4-93
SDH Tributary Path BIP Analysis Results 4-93
SDH Tributary Path FEBE Analysis Results 4-94
SDH Block Based Bit Analysis Results 4-94
SDH M.2101 Analysis Results 4-95
SDH Service Disruption Results 4-96
SDH Optical Power Result 4-97
SDH Pointer Activity Results 4-97
SDH Alarm Seconds Results 4-98

FETCh subsystem 4-99

ix

Contents

5 SONET Command Reference

SONET Command Reference 5-3
OUTPut subsystem 5-4
SOURce subsystem - Transmitter SONET Settings Commands 5-7

SONET Clock settings 5-7
Thru mode settings 5-9
SONET Mapping Settings 5-11
SPE Layer Selection 5-11
VT Layer Selection 5-12
Payload Layer Selection 5-13
VT Group 5-13
VT Payload and Test Pattern 5-14
Background Settings 5-18

SOURce subsystem - Transmitter SONET OVERHEAD SETUP 5-21
:SOURce subsystem - Transmitter SONET Test Function Commands 5-32
INPut subsystem 5-59
SENSe subsystem - Receiver SONET Settings 5-63

SONET Mapping settings 5-63
SPE Layer Selection 5-64
VT Layer Selection 5-64
Payload Layer Selection 5-65
VT Group 5-66
VT Payload and Test Pattern 5-67

SENSe subsystem - Receiver SONET Test Function Commands 5-71
SENSe subsystem - Alarm Scan Control 5-77
SENSe subsystem - SONET Tributary Scan Control 5-79
SENSe subsystem - Optical Power Measurement Settings 5-81
SENSe subsystem - Result Returning Commands 5-82

Frequency Results (SONET) 5-82
SONET Short Term Results 5-82
SONET Cumulative Results 5-83
SONET Section B1 BIP (CV-S) Analysis Results 5-84

x

Contents

SONET Line B2 BIP (CV-L) Analysis Results 5-84
SONET Line FEBE (REI-L) Analysis Results 5-85
SONET Path B3 BIP (CV-P) Analysis Results 5-85
SONET Path FEBE (REI-P) Analysis Results 5-86
SONET CV-IEC Analysis Results 5-86
SONET Virtual Tributary Path BIP (CV-V) Analysis Results 5-87
SONET Virtual Tributary Path FEBE (REI-V) Analysis Results 5-87
SONET Block Based Bit Analysis Results 5-88
SONET M.2101 Analysis Results 5-88
SONET Service Disruption Results 5-90
SONET Optical Power Result 5-90
SONET Pointer Activity Results 5-90
SONET Alarm Seconds Results 5-91

FETCh subsystem 5-93

6 ATM Command Reference

ATM Command Reference 6-3
OUTPut subsystem 6-4
SOURce subsystem- Transmitter ATM Commands 6-6
INPut subsystem 6-20
SENSe subsystem - Receiver ATM Settings 6-22

ATM Layer 6-22

SENSe subsystem - Result Returning Commands 6-30

ATM Short Term Results 6-30
ATM Cumulative Results 6-31
ATM EM BIP Analysis Results 6-33
ATM FEBE/REI Analysis Results 6-33
ATM REBE Analysis Results 6-34
ATM CRC4 Analysis Results 6-34

xi

Contents

ATM Alarm Seconds Results 6-35
ATM Mean Cell Transfer Delay Results 6-35

FETCh subsystem 6-36

7 Jitter Command Reference

Jitter Command Reference 7-3
OUTPut subsystem 7-4
SOURce subsystem - Transmitter Jitter Commands 7-6
INPut subsystem 7-18
SENSe subsystem - Receiver Jitter Settings 7-21
SENSe subsystem - Result Returning Commands 7-24

Jitter/Wander Results 7-24

FETCh subsystem 7-26

8 Status Reporting

Status Reporting 8-2

Status Byte 8-5
Standard Event Status Register 8-6
QUEStionable Status Register 8-7
OPERation Status Register 8-8
INSTrument Status Register 8-9
DATA Status Register 8-10
PDH Status Register 8-11
FAS Status Register 8-12
BINary Status Register 8-13
SDH Status Register 8-14
SDH2 Status Register 8-15

xii

Contents

SONet Status Register 8-16
SONet2 Status Register 8-17
JITTer Status Register 8-18
SPDH Status Register 8-19
M140 Status Register 8-20
M34 Status Register 8-21
M8 Status Register 8-22
M2 Status Register 8-23
DS3 Status Register 8-24
DS2 Status Register 8-25
DS1 Status Register 8-26
ATM Status Register 8-27
DISK Status Register 8-28
Variations in BINary Input to DATA Status Register 8-31
Programmed Status Reporting 8-32

9 General Information

General Information 9-2
SCPI Overview 9-2
HP-IB Universal Commands 9-3

Device Clear (CLEAR) 9-3
Serial Poll (SPOLL) 9-3
Remote Enable (REMOTE) 9-3
Local Lockout (LOCAL LOCKOUT) 9-4
Local (LOCAL) 9-4

xiii

Contents

10 Application Program Examples

Initializing the HP 37717C 10-2
Setup the HP 37717C PDH Tx (Main Settings) 10-3
Setup the HP 37717C PDH Rx (Main Settings) 10-4
Setup the HP 37717C PDH Tx (Main & Structured Settings) 10-5
Setup the HP 37717C PDH Rx (Main & Structured Settings) 10-7
Setup the HP 37717C PDH Tx to add Errors & Alarms 10-8
Setup the HP 37717C PDH Rx to perform Bit Error Measurements 10-9
Setup the HP 37717C SDH Tx 10-10
Setup the HP 37717C SDH Rx 10-12
Setup the HP 37717C SDH Tx to add Errors & Alarms 10-13
Setup the HP 37717C SDH Tx Overhead Bytes 10-14
Setup the HP 37717C SDH Tx for Overhead Byte Sequencing 10-15
Perform HP 37717C SDH Rx Measurements 10-16
Setup the HP 37717C SDH Rx to retrieve Overhead Monitor Bytes 10-17
Setup the HP 37717C SDH Rx to perform Overhead Byte Capture 10-18
Setup the HP 37717C SONET Tx 10-19
Setup the HP 37717C SONET Rx 10-21
Setup the HP 37717C SONET Tx to add Errors & Alarms 10-22
Setup the HP 37717C SONET Tx Overhead Bytes 10-23
Setup the HP 37717C SONET Tx for Overhead Byte Sequencing 10-24
Perform HP 37717C SONET Rx Measurements 10-25
Setup the HP 37717C SONET Rx to retrieve Overhead Monitor Bytes 10­26
Setup the HP 37717C SONET Rx to perform Overhead Byte Capture 10­27

11 Backwards Compatibility

Backwards Compatibility 11-2

xiv

Contents

12 SCPI Error Messages

SCPI Error Messages 12-2

General Index

xv

Contents

xvi

1

1 Methods of Remote Control

Methods of Remote Control

Methods of Remote Control

The HP 37717C can be remotely controlled in one of four ways :

HP-IB Options
A3B, A3D (1A8) Provides a parallel interface that allows the connection of other

devices to the system for example : Frequency Counter; Printer;
Signal Generator. Allows great flexibility in communicating
data and controlling data and provides one of the easiest
methods of constructing automatic systems. If long distance
communication is required, suitable HP-IB Extenders must be
connected within the test system at both ends of the
communication link.

RS-232-C Options
A3B, A3D (1CW) Provides a serial interface that can be connected directly to the

RS-232-C port of a terminal or computer. Only the controller
and the HP 37717C can be connected within the system. If long
distance communication is required, the HP 37717C can be
connected directly to the RS-232-C port of a Modem and
carried over a telephone line.

LAN Option A3B
(1F7) Provides a parallel interface that allows the connection of other

instruments and controllers to the system for example :
workstations; other HP 37717C’s; other test sets that have a
LAN interface.

DNA Option USS

Provides control via a Front Panel displayed on a PC connected
to a LAN. Other test sets that have the Virtual Remote
capability can be connected to the LAN and controlled via the
same PC. See HP E4540A Manual, HP part number E4540-

90004.

1-2

Methods of Remote Control

Connecting the HP 37717C to HP-IB

The following points should be considered when connecting the HP 37717C to
HP-IB :

• Operating distances

• Communication with the system controller

Operating Distances

1. The total length of HP-IB cable must not exceed 2 meters (6 feet) × the number of
devices in the system.

2. The total length of HP-IB cable, used to interconnect all devices in the system,
must not exceed 20 meters (65 feet).

Operating distances can be increased by using HP-IB Extenders, HP 37204A or HP
37201A :

Up to 1250 meters use HP 37204A.
Over 1250 meters use two HP 37201A and two suitable Modems.

Communication with the System Controller

Each device in the system must have a unique address to allow the controller to
access each one individually. On the HP 37717C the address is set on the OTHER
display under REMOTE CONTROL :

T o set the HP-IB Address pressOTHER;
REMOTE CONTROL and set the
display as shown opposite. Address 5 has
been selected but any Address in the
range 0 to 30 can be selected.

1-3

Methods of Remote Control

Connecting the HP 37717C to RS-232-C

Two methods of controlling the HP 37717C via RS-232-C are available :

Terminal Simple method of control on a command by command basis.
Computer More extensive method of control allows programs to be run.

Terminal Mode

Terminal mode is provided to allow the HP 37717C to be controlled by a "dumb"
terminal and provides the following features :

When connection is established via RS-232-C the HP 37717C responds with a
"prompt".

Any command sent to the HP 37717C is echoed back to the terminal to provide a
local record.

If a mistake is made in the command, the appropriate SCPI Error Message and
the "entered" command is returned to the terminal to provide a local record.

A command history buffer is provided with a capacity of 20 commands. This
allows frequently used commands to be retransmitted without having to retype
the command :

To list the history buffer contents type : !l (lower case L)
To retransmit the last Command sent type :
To retransmit a previously sent command type : !n where n = the commands

listed number.

When REMOTE CONTROL PORT [RS232] is selected on the OTHER REMOTE
CONTROL display the HP 37717C acts as DCE (Data Communications
Equipment). Dumb terminals act as DTE (Data Terminal Equipment). This makes
connection of the HP 37717C to a dumb terminal straightforward as shown in Table
1-1.

RS-232-C cable HP Part Number 5060-4461 will provide this connection.

1-4

Methods of Remote Control

Table 1-1 HP 37717C (Options A3B & A3D) to RS-232-C Terminal

37717C Pin # Signal Terminal Pin # Signal
2 Transmit Data (TX) 2 Transmit Data (TX)
3 Receive Data (RX) 3 Receive Data (RX)
5 Signal Ground 7 Signal Ground

RS-232-C cable HP Part Number 24542U will provide this connection.

Connection via a Modem

Full Modem control is not possible and the Modem should be configured to force
DSR, CD, CTS and DTR true.

Since Modems are always configured as DCE (Data Communications Equipment),
the same as the HP 37717C, a crossover is required in the three wire connection as
shown in Table 1-2.

Table 1-2 HP 37717C (Options A3B & A3D ) to Modem

37717C Pin # Signal Modem Pin # Signal
2 Transmit Data (TX) 3 Receive Data (RX)
3 Receive Data (RX) 2 Transmit Data (TX)
5 Signal Ground 7 Signal Ground

RS-232-C cable HP Part Number 24542M will provide this connection.

1-5

Methods of Remote Control

Computer Mode

Computer mode is provided to allow the HP 37717C to be controlled by a RS-232-C
computer allowing programs to be run. Unlike Terminal mode commands are not
echoed back and SCPI Error Messages are not returned unless the appropriate query
command is issued.

When REMOTE CONTROL PORT [RS232] is selected on the OTHER REMOTE
CONTROL display the HP 37717C acts as DCE (Data Communications
Equipment). The Computer should be configured to act as DTE (Data Terminal
Equipment). This makes connection of the HP 37717C to a computer
straightforward as shown in Table 1-3.

Table 1-3 HP 37717C (Option A3B & A3D) to RS-232-C Computer

37717C Pin # Signal Computer Pin # Signal
2 Transmit Data (TX) 2 Transmit Data (TX)
3 Receive Data (RX) 3 Receive Data (RX)
5 Signal Ground 7 Signal Ground

RS-232-C cable HP Part Number 24542U will provide this connection.

Connection via a Modem

Full Modem control is not possible and the Modem should be configured to force
DSR, CD, CTS and DTR true.

Since Modems are always configured as DCE (Data Communications Equipment),
the same as the HP 37717C, a crossover is required in the three wire connection as
shown in Table 1-2 .

Communication with the Terminal/Computer

Remote control via RS-232-C requires that the HP 37717C RS-232-C interface
settings match those of the terminal/computer. These settings are made on the
OTHER display under REMOTE CONTROL.

1-6

Methods of Remote Control

Using , and the display softkeys
set REMOTE CONTR OL PORT [RS232].
Set CONTROLLER TYPE, XON/XOFF,
SPEED, PARITY and STOP BITS to
match the settings on your terminal/
computer.

.

1-7

Methods of Remote Control

Controlling the HP 37717C

The simplest way to verify the connection and become familiar with remote RS­232-C operation is to send a few commands and observe their effect. In this e xample
using a terminal we will :

• Take the HP 37717C under remote control

• Initialize the HP 37717C

• Read the contents of the error register

• Start a test period

• Add errors

• Obtain the result (Option dependent)

• Return the HP 37717C to local operation

NOTE Select CONTROLLER TYPE [TERMINAL] on the OTHER REMOTE CONTR OL

display and connect the PDH OUT port to the PDH IN port for the duration of this
exercise.

Table 1-4 HP 37717C to RS-232-C Computer

Terminal Input Comment
:SYST:REM Takes the HP 37717C under remote control.

On the instrument the indicator above
LOCAL is lit.

*RST Default settings, registers cleared.
:SYST:ERR? The SCPI Error Message and number can be read,

even in local operation mode. (+0, "No error")

:SENS:DATA:TEL:TEST

Selects a manual test period.

:TYPE MAN
:SENS:DATA:TEL:TEST

ON

Starts the manual test period. On the instrument
the indicator above is lit.

1-8

RUN/STOP

Methods of Remote Control

Table 1-4 HP 37717C to RS-232-C Computer

Terminal Input Comment

:SOUR:DATA:TEL:ERR

Adds a single bit error.

:BIT ONCE
:SOUR:DATA:TEL:ERR

Adds a single bit error.

:BIT ONCE
:SOUR:DATA:TEL:ERR

Adds a single bit error.

:BIT ONCE
:SENS:DATA:TEL:TEST

OFF
:SENS:DATA "ECO:PDH

:BIT"

Halts the manual test period. On the instrument
the indicator above is extinguished.

RUN/STOP

Option UKK, Unstructured PDH -Returns the bit
error count in numeric form, in this example 3.

or

:SENS:DATA "ECO:SPDH
:BIT" RETURN

Option UKJ, Structured PDH - Returns the bit
error count in numeric form, in this example 3.

:SYST:LOC Returns the HP 37717C to local control. On the

instrument the indicator above LOCAL is
extinguished.

1-9

Methods of Remote Control

Connecting the HP 37717C to a LAN

Two methods of controlling the HP 37717C via a LAN are available :

Terminal Simple method of control on a command by command basis.
Computer More extensive method of control allows programs to be run.

The following information should be obtained from the LAN System Administrator
before connecting to the LAN:

• Internet address (Example 015.144.180.205)

• Subnet Mask (Example 255.255.248.0).

• Default Gateway IP Address (Example 15.144.176.1).

The PORT NUMBER and MAC ADDRESS are assigned to the HP 37717C at the
time of shipment.

Connect the HP 37717C LAN interface to the LAN network.
The HP 37717C must now be configured to accept the IP address, Subnet Mask and

Default Gateway IP Address.

OTHER

Press ,
and set up the display as shown opposite.

The HP 37717C can be configured to
accept the IP address, Subnet Mask and
Default Gateway IP Address in one of
two ways:

1-10

REMOTE CONTROL

Methods of Remote Control

Current Settings

The IP Address, Subnet Mask and
Gateway IP Address will adopt the current
settings.

The Port Number and MAC Address are
displayed for information.

New Settings (BOOTP)

To use BOOTP your system administrator
must set up a BOOTP server on the
network.

When YES is selected the power must be
cycled on the HP 37717C to allow for a
change of settings.

When power is restored the HP 37717C
will issue BOOTP requests until it receiv es
a reply from a suitably configured BOOTP
server .

The Settings of IP Address, Subnet Mask and Gateway IP Address will be adopted
as the Current Settings.

1-11

Methods of Remote Control

New Settings (Keyboard Entry)

Use and

DECREASE DIGIT

INCREASE DIGIT

Address, Subnet Mask and Gateway IP
Address.

Use and to move between the
IP Address, Subnet Mask and Gateway
IP Address.

The New Settings will not become active
until the power is cycled (power off/
power on) on the HP 37717C.

The entered New settings are checked to ensure they conform to the relationships
that should exist between the IP Address, Subnet Mask and Gateway IP Address. If
the entered data contravenes these relationships, the HP 37717C will change the
data to more sensible values.

Configuration

The HP 37717C can only accept one tcp connection at a time and it cannot establish
an outgoing call. The connection has to be directed to port 5001.

to set the IP

For Example (from a UNIX system):
telnet <IP address> 5001
If ping <IP address> is issued (from a UNIX system), commands issued will be

echoed at the local end of the connection.

Controlling the HP 37717C

The simplest way to verify the connection and become familiar with remote LAN
operation is to send a few commands and observe their effect. In this example using
a terminal we will:

• Take the HP 37717C under remote control

• Initialize the HP 37717C

• Read the contents of the error register

• Start a test period

• Add errors

• Obtain the result (Option dependent)

• Return the HP 37717C to local operation

1-12

Methods of Remote Control

NOTE Connect the PDH OUT port to the PDH IN port for the duration of this exercise.

Table 1-5 HP 37717C to RS-232-C Computer

Terminal Input Comment
:SYST:REM Takes the HP 37717C under remote control. On the

instrument the indicator above LOCAL is lit.
*RST Default settings, registers cleared.
:SYST:ERR? The SCPI Error Message and number can be read,

even in local operation mode. (+0, "No error")
:SENS:DATA:TEL:TEST :TYPE MAN Selects a manual test period.
:SENS:DAT A:TEL:TEST ON Starts the manual test period. On the instrument the

indicator above is lit.

RUN/STOP

:SOUR:DATA:TEL:ERR :BIT ONCE Adds a single bit error.
:SOUR:DATA:TEL:ERR :BIT ONCE Adds a single bit error.
:SOUR:DATA:TEL:ERR :BIT ONCE Adds a single bit error.
:SENS:DATA:TEL:TEST OFF Halts the manual test period. On the instrument the

indicator above is extinguished.

RUN/STOP

:SENS:DATA "ECO:PDH :BIT" Option UKK, Unstructured PDH -Returns the bit

error count in numeric form, in this example 3.

or

:SENS:DATA? "ECO:SPDH :BIT" Option UKJ, Structured PDH -Returns the bit error

count in numeric form, in this example 3.
:SYST:LOC Returns the HP 37717C to local control. On the

instrument the indicator above LOCAL is

extinguished.

1-13

Methods of Remote Control

To Initialize the HP 37717C

Regardless of the current setup the following command will initialize the HP
37717C. It sets the HP 37717C to the factory default settings and clears all registers.

*RST

It is recommended that you do not rely on default settings but program each setting
to what you require.

1-14