**GOLDSTONE SOLAR SYSTEM RADAR**

**VME DATA ACQUISITION SYSTEM**

**OPERATION MANUAL**

**Revision 1.0**

**June 26, 1998**

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**Jet Propulsion Laboratory**

California Institute of Technology

**GSSR VME DATA ACQUISITION SYSTEM**

**OPERATION MANUAL**

**APPROVAL SHEET**

**APPROVAL**

Robert E. Frye

System Designer

Dr. Raymond F. Jurgens

Group Leader

Dr. Martin A. Slade

Group Supervisor

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**Jet Propulsion Laboratory**

California Institute of Technology

**TABLE of CONTENTS**

**1 INTRODUCTION**

1.1 Identification

1.2 Overview

1.3 Document Scope

1.4 Controlling Documents

1.5 Applicable Documents

**2 INSTALLATION**

2.1 Rack Mounting

2.2 Rear Panel

2.3 Front Panel

2.4 System Interrconnects

2.4.1 Peripheral Devices

2.4.2 Ethernet Interface

2.4.3 Timing Inputs

2.4.4 Signal Inputs

2.5 Firmware Configuration

**3 OPERATION**

3.1 System Configuration

3.1.1 Sample Rate

3.1.2 FFT Size

3.1.3 PSD Setup

3.1.3.1 Average Count

3.1.3.2 Accumulate Mode

3.1.3.3 Moving Average Filter

3.1.3.4 LOG/Linear Mode

3.1.4 Frequency Hopping Setup

3.1.4.1 States

3.1.4.2 Duration

3.1.4.3 Bandwidth

3.1.4.4 Composite Mode

3.1.4.5 Composite Average

3.1.4.5 Ephemeris File

3.1.5 Voltage Data Format

3.1.6 Target Object

3.2 Station Parameters

3.2.1 Transmit Station

3.2.2 Receive Station

3.2.3 Noise Temperatures

3.2.4 Sky Frequency

3.2.5 Transmit Power

3.2.6 Transmit Polarization

3.2.7 Receive Polarization

3.3 Record Enables

3.3.1 Voltage Samples

3.3.2 FFT Data

3.3.3 PSD Data

3.3.4 Cross Power Data

3.4 Data Products

3.4.1 Local Data Storage

3.4.2 Host File

3.4.3 Tape Archive

3.4.4 Screen Dump and GIF File

APPENDIX A Pre-Calibration Checklist

APPENDIX B DSS14 Boot Parameters

**1 INTRODUCTION**

**1.1 Identification**

The Goldstone Solar System Radar VME Data Acquisition System (VDAS) is
the processing system described herein. It is a component of the
Goldstone Solar System Radar.

**1.2 Overview**

The Goldstone Solar System Radar (GSSR) is a telecommunication facility
that uses the Deep Space Network (DSN) antennas and receivers to
generate images of planets and asteroids. Data products are generated
from low resolution delay-Doppler radar imaging of over-spread targets
by coherent processing of random hop frequency sequences. The VME Data
Acquisition System (VDAS) is a high-speed data acquisition, storage,
processing and display computer. Baseband radar return signals from DSN
receivers are digitized at up to 10 MHz. A high capacity disk drive
stores data during real-time acquisition. An 8 mm tape drive stores
archived data. Parallel processing elements receive acquired data and
execute display algorithms. A high resolution color console displays
algorithm results. The storage device stores data as bandwidth permits.
On-line mass data storage is provided. Data archival and retrieval
operates concurrently with real-time computation and display activity.
Hardware and software interfaces are provided for data acquisition, mass
storage and information display.

**1.3 Document Scope**

This document defines the setup and operation of the Goldstone Solar
System Radar VME Data Acquisition System. Section 2 describes the VDAS
functional requirements. Section 3 defines the software and hardware
design standards.

**1.4 Controlling Documents**

\[1\] [Goldstone]{.underline} [Solar]{.underline} [System]{.underline}
[Radar]{.underline} [Data]{.underline} [Acquisition]{.underline}
[System]{.underline} [Design]{.underline} [Requirements]{.underline},
Daryl Strobert, May 4, 1993.

\[2\] [Preliminary]{.underline} [CW]{.underline} [Radar]{.underline}
[System]{.underline} [Specifications]{.underline} [and]{.underline}
[Rational]{.underline}, Dr. Raymond F. Jurgens, January 25, 1994.

\[3\] [Goldstone]{.underline} [Solar]{.underline} [System]{.underline}
[Radar]{.underline} [CW]{.underline} [Imaging]{.underline}
[System]{.underline} [Functional]{.underline}
[Requirements]{.underline}, Robert E. Frye, January 26, 1994.

**1.5 Applicable Documents**

\[3\] [Versatile]{.underline} [Backplane]{.underline} [Bus]{.underline}:
[VMEbus]{.underline}, IEEE Standard 1014-1987.

\[4\] [Small]{.underline} [Computer]{.underline} [System]{.underline}
[Interface]{.underline} - 2 (SCSI-2), ANSI X3T9.2/86, May 20, 1991.

\[5\] [EXB-8500]{.underline} [8 mm]{.underline} [Cartridge]{.underline}
[Tape]{.underline} [Subsystem]{.underline} [User's]{.underline}
[Manual]{.underline}, Exabyte Corporation, 510201-002, Revision 002,
December 1991.

**2 INSTALLATION**

The VDAS components are a system unit with one Exabyte 8505 tape drive,
a 17 inch, 1192 x 1024 pixel color monitor, a keyboard, a mouse and a
Trak Systems model 8397-37 time code translator (TCT). The system unit,
keyboard and monitor are rack mounted.

**2.1 Rack Mounting**

The VDAS system unit and touch screen monitor are installed in a
standard 19 inch rack with supplied slide mounts. The system unit is 6
rack units high and 23 inches deep. One rack unit (U) equals 1 3/4
inches. The touch screen unit is 11U high and 23 inches deep. The
keyboard and TCT are each 1U high.

**2.2 Rear Panel**

The VDAS rear panel is shown in **Appendix A**. **Table 1** describes
the connectors and functions.

Table 1 VDAS Rear Panel Connectors and Interfaces

+--------+------------+---------+-----------+--------+----------------+
| **G    | **DE       | **CONN  | **IN      | *      | **FUNCTION**   |
| ROUP** | SIGNATOR** | ECTOR** | TERFACE** | *DIREC |                |
|        |            |         |           | TION** |                |
+--------+------------+---------+-----------+--------+----------------+
| C      | I          | TNC     | Analog    | INPUT  | Inphase Signal |
| HANNEL |            |         | 2.5V      |        |                |
| x      |            |         |           |        |                |
+--------+------------+---------+-----------+--------+----------------+
|        | Q          | TNC     | Analog    | INPUT  | Quadrature     |
|        |            |         | 2.5V      |        | Signal         |
+--------+------------+---------+-----------+--------+----------------+
|        | CLK IN     | TNC     | \-\-\-\-- | \-\    | spare          |
|        |            |         |           | -\-\-- |                |
+--------+------------+---------+-----------+--------+----------------+
|        | CLK OUT    | TNC     | TTL       | OUTPUT | Sample Clock   |
+--------+------------+---------+-----------+--------+----------------+
|        | TRIG IN    | TNC     |           |        | spare          |
+--------+------------+---------+-----------+--------+----------------+
| TI     | 5 MHz      | TNC     | A         | INPUT  | Station        |
| MECODE |            |         | nalog/TTL |        | Reference      |
| IN     |            |         | 1.0V      |        | Clock          |
+--------+------------+---------+-----------+--------+----------------+
|        | 1 PPS      | TNC     | TTL       | INPUT  | TCT 1PPS       |
|        |            |         |           |        | Reference      |
+--------+------------+---------+-----------+--------+----------------+
|        | TIME       | DB25S   | RS-232,   | INPUT  | ASCII Time     |
|        |            |         |           |        |                |
|        |            |         | 9         |        |                |
|        |            |         | 600,8,N,1 |        |                |
+--------+------------+---------+-----------+--------+----------------+
|        | VT-100     | DB25S   | RS-232,   | I/O    | VT-100 Control |
|        | CONTROL    |         |           |        | Console        |
|        |            |         | 19        |        |                |
|        |            |         | 200,8,N,1 |        |                |
+--------+------------+---------+-----------+--------+----------------+
|        | MOUSE      | DB25P   | RS-232    | INPUT  | Serial Mouse   |
|        |            |         |           |        | Input          |
+--------+------------+---------+-----------+--------+----------------+
| DAS    | PORT A     | \-      | \-\-\-\-- | \-\    | spare          |
| PA     |            | \-\-\-- |           | -\-\-- |                |
| RALLEL |            |         |           |        |                |
| COMM   |            |         |           |        |                |
+--------+------------+---------+-----------+--------+----------------+
|        | KEYBOARD   | DB25S   | special   | INPUT  | Keyboard Input |
+--------+------------+---------+-----------+--------+----------------+
| S      | VIDEO      | DB37S   | special   | OUTPUT | SVGA Video     |
| TATION | MONITOR    |         |           |        | Output         |
| C      |            |         |           |        |                |
| ONTROL |            |         |           |        |                |
+--------+------------+---------+-----------+--------+----------------+
|        | RF MATRIX  | \-      | \-\-\-\-- | \-\    | spare          |
|        | 1          | \-\-\-- |           | -\-\-- |                |
+--------+------------+---------+-----------+--------+----------------+
|        | RF MATRIX  | \-      | \-\-\-\-- | \-\    | spare          |
|        | 2          | \-\-\-- |           | -\-\-- |                |
+--------+------------+---------+-----------+--------+----------------+
|        | IEEE-488   | I       | GPIB      | I/O    | GPIB Control   |
|        |            | EEE-488 |           |        |                |
+--------+------------+---------+-----------+--------+----------------+
| SCSI   | \-\-\-\--  | \-      | SCSI      | I/O    | spare          |
|        |            | \-\-\-- |           |        |                |
+--------+------------+---------+-----------+--------+----------------+
| LAN    | \-\-\-\--  | AUI     | Ethernet  | I/O    | Network I/O    |
+--------+------------+---------+-----------+--------+----------------+
| DEBUG  | \-\-\-\--  | DB25S   | RS-232,   | I/O    | VxWorks debug  |
|        |            |         |           |        |                |
|        |            |         | 9         |        |                |
|        |            |         | 600,8,N,1 |        |                |
+--------+------------+---------+-----------+--------+----------------+
| SPARE  | 1          | TNC     | TTL       | INPUT  | External       |
| x      |            |         |           |        | RESET\* Input  |
+--------+------------+---------+-----------+--------+----------------+
|        | 2          | TNC     | \-\-\-\-- | \-\    | spare          |
|        |            |         |           | -\-\-- |                |
+--------+------------+---------+-----------+--------+----------------+
|        | 3          | TNC     | \-\-\-\-- | \-\    | spare          |
|        |            |         |           | -\-\-- |                |
+--------+------------+---------+-----------+--------+----------------+
|        | 4          | TNC     | \-\-\-\-- | \-\    | spare          |
|        |            |         |           | -\-\-- |                |
+--------+------------+---------+-----------+--------+----------------+

**2.3 Front Panel**

The VDAS front panel is shown in **Appendix A**. **Table 2** describes
the connectors and functions.

Table 2 VDAS Front Panel Connectors and Interfaces

  ---------------- --------------- --------------- --------------- -----------------
  **DESIGNATOR**   **CONNECTOR**   **INTERFACE**   **DIRECTION**   **FUNCTION
                                                                   MT/FT**

  POWER            \-\-\-\--       \-\-\-\--       \-\-\-\--       AC power ON/OFF

  RESET            \-\-\-\--       \-\-\-\--       \-\-\-\--       System RESET
  ---------------- --------------- --------------- --------------- -----------------

**2.4 System Interconnects**

**2.4.1 Peripheral Devices**

**2.4.2 Ethernet Interface**

**2.4.3 Timing Inputs**

**2.4.4 Signal Inputs**

**2.5 Firmware Configuration**

**3 OPERATION**

**3.1 System Configuration**

The VDAS has parameters settings that adjust the system operation to
match a target object. The operating parameters are set during the
pre-calibration phase of the radar track.

**3.1.1 Sample Rate**

Set the A/D sample rate to the value required for the target object. The
VDAS will calculate the closest available sample rate and set the A/D
clock dividers accordingly.

**3.1.2 FFT Size**

Set the FFT size to the value required for the target object. The
available FFT sizes are: 128, 256, 512, 1024, 2048, 4096, 8192 and
16384.

**3.1.3 PSD Setup**

The VDAS displays and stores real power spectral density (PSD) data
derived from the complex FFT data. Adjustment parameters are provided
for data generation and display functions.

**3.1.3.1 Average Count**

Sequential PSDs may be averaged before display and storage. A count
field is provided to specify how many averages are added before results
are available. This field is used when the sampling system is faster
than the display system and the display cannot keep up with incoming
data. The plot and storage rate may be reduced without losing sampled
data. The average is restarted after every result. The result is not
divided by the total count. The accumulated data is provided as a sum of
previous results. An average count of zero disables PSD averaging.

**3.1.3.2 Accumulate Mode**

The PSD Accumulate Mode operates with the PSD Average Count to produce
averaged PSDs for storage and display. Accumulate Mode retains the
accumulated PSD over successive results, providing a running PSD
average. The result is not divided by the total count. The accumulated
data is provided as a running sum of previous results.

**3.1.3.3 Moving Average Filter**

The VDAS provides a one-dimensional moving average (sliding) filter for
real-time smoothing of displayed data. The filter width is specified as
an odd number of data points to average. The filter replaces the center
point with the average of the surrounding points, on a point-by-point
basis. The result is a smoothed PSD plot. The filter data is for display
only and is not stored to disk.

**3.1.3.4 LOG/Linear Mode**

The PSD plots may be set to display data on a LOG or linear scale. The
scale mode has no effect on stored data.

**3.1.4 Frequency Hopping Setup**

The VDAS produces real-time composite, baseline removed, frequency
de-hopped data for display. The VDAS tracks a frequency hopped signal
source in real-time and produces a composite SNR plot of the target
object. Set the PSD Average Count to zero and Accumulate Mode OFF to run
in hop tracking mode. The VDAS compensates for the round-trip light time
using the object ephemeris data.

**3.1.4.1 States**

The number of hop states pecifies the number of frequency hops used to
illuminate the object. The options are 2, 4 and 8 frequencies or
"colors".

**3.1.4.2 Duration**

The frequency hop duration specifies the dwell time in seconds for a
given frequency in a hop sequence. The minimum value is one second per
hop. A typical value is 30 seconds per hop.

**3.1.4.3 Bandwidth**

The frequency hop bandwidth specifies the total hopping bandwidth in Hz,
including guard bands at the edges. The hopping bandwidth is usually the
same as the sample rate and the front end passband filter width. The
system calculates the hop spacing from the hop bandwidth and number of
hops in the sequence.

**3.1.4.4 Composite Mode**

The de-hopped composite data may be generated using either of two
methods, SIGNAL or SNR. The SIGNAL mode calculates (S + N) - N. The SNR
mode calculates (S + N) / N - 1. The default setting is SNR mode.

**3.1.4.5 Composite Average**

The composite PSD data may be averaged over multiple, bi-static
transmit/receive cycles using the Composite Average feature. The SNR
composites are accumulated and saved in system memory until the average
is restarted. The composite provides automatic summing of object data
over the entire track. Composite Average feature is enabled for typical
GSSR objects. The SNR data is for display only and is not stored.

**3.1.4.5 Ephemeris File**

The ephemeris file name and path is set before enabling the frequency
hopping mode. The ephemeris file is read from the specified path to
allow real-time calculation of object round-trip-time and header
parameters. The ephemeris for a target object is given in the PUNCH.OUT
file for that object. Only the receive records are used (lines ending in
"R"), so the file may be edited to discard transmit records (lines
ending in "T") and moved to the local disk, GSSR0_DR1, for faster
loading. If the file fails to load, frequency hopping will remain
disabled. The ephemeris will not load if the date and time span do not
fall within the current VDAS date and time. The ephemeris will not load
if the target object field does not match the object specified in the
VDAS setup.

**3.1.5 Voltage Data Format**

Voltage data samples may be stored to disk as 16 bit signed shorts or 8
bit signed chars. The A/D subsystem is 12 bits. 8 bit storage is
specified only when the dynamic range is within the range of - 128 to
+127.

**3.1.6 Target Object**

The target object is specified from the list of possible objects. The
selected object specifies an object number contained in the ephemeris
file, that must match for the ephemeris to be loaded.

**3.2 Station Parameters**

The VDAS has station and radio system parameters that are included in
the header for target object data. The station parameters are set during
the pre-calibration phase of the radar track.

**3.2.1 Transmit Station**

The transmit station is specified by selecting the station number from a
list of Goldstone antenna sites. The default transmit station is DSS14.

**3.2.2 Receive Station**

The receive station is specified by selecting the station number from a
list of Goldstone antenna sites. The default receive station is DSS14.

**3.2.3 Noise Temperatures**

The system noise temperatures, in degrees K, for up to eight complex
channels are entered for inclusion in the header of all recorded data.
The values come from pre-calibration data provided by station operators.

**3.2.4 Sky Frequency**

The sky frequency carrier, in MHz, is specified for inclusion in the
header of all recorded data. The default value is 8510 MHz.

**3.2.5 Transmit Power**

The transmit power level in kW is specified for inclusion in the header
of all recorded data. The value is typically 460 to 480 kW. The value
comes from pre-calibration data provided by station operators.

**3.2.6 Transmit Polarization**

The transmit polarization is specified for inclusion in the header of
all recorded data. The value is normally LCP. The value comes from
pre-calibration data provided by station operators.

**3.2.7 Receive Polarization**

The receive polarization is specified for inclusion in the header of all
recorded data. The value is specified on a per-channel basis and is
normally RCP for channel one and LCP for channel two. The value comes
from pre-calibration data provided by station operators.

**3.3 Record Enables**

The disk recording of individual data types is selectable using record
enable selectors.

**3.3.1 Voltage Samples**

The recording of voltage samples is controlled with the VOLT Recording
selector. The A/D subsystem always produces voltage samples, even if
volt recording is disabled.

**3.3.2 FFT Data**

The recording of FFT data is controlled with the FFT Recording selector.
The FFT subsystem produces spectra if FFTs or PSDs are enabled, even if
FFT recording is disabled.

**3.3.3 PSD Data**

The recording of PSD data is controlled with the PSD Recording selector.
The PSD subsystem produces spectra for display, even if PSD recording is
disabled.

**3.3.4 Cross Power Data**

The recording of Cross Power (XPWR) data is controlled with the XPWR
Recording selector. The Cross Power subsystem produces spectra for
display, even if XPWR recording is disabled.

**3.4 Data Products**

The VDAS creates local, binary data files on the local 10 GB disk drive.
The drive content is supported by a directory structure located in
system memory. Tracks are identified by disk sector range after a track
and data product files are generated from the stored binary data.

**3.4.1 Local Data Storage**

Three disk pointers are used to access data on the 10 GB data drive. The
EOD pointer indicates end-of-data, the first unused sector after used
sectors. The START pointer and END pointers indicate the inclusive range
of sectors to use when generating host or tape data files.

**3.4.2 Host File**

Binary or ASCII data may be transferred to a network host computer for
further analysis. The host must be NFS mounted under VxWorks. The
Goldstone VDAS is set at installation time to automatically NFS mount
the INTRUDER workstation. A valid path for host files is "/h3/robert".

The workstation name "intruder:" must NOT be specified in the path or
the transfer will not use NFS and will fail. VxWorks knows that "/h3"
refers to INTRUDER.

**3.4.3 Tape Archive**

A binary tape archive may be generated from stored disk data. The data
output range is specified by the START and END disk sector pointers. The
tape is a binary copy of the data disk, and is not in TAR format. The
tape is workstation compatible, and is read using the C language
"read()" command.

**3.4.4 Screen Dump and GIF File**

The data screens shown on the VDAS system console may be output directly
to a printer. The printer output is grayscale, for conventional laser
printers. The grayscale output is reverse video for best hardcoopy
viewing and faxing. A color "GSSRIMAGEx.gif" file is generated at the
same time for later viewing or printing. The print utility is located at
Goldstone and id located on intruder:/h3/robert/dss14pr. The utility is
run on the workstation, and asks the user to mouse select a VDAS screen
for printing. The print job is sent to the "lpr" printer and a
sequential .gif file is generated for future use.

**APPENDIX A GSSR VME DAS PRE-CALIBRATION CHECKLIST**

GSSR VME DAS

CW Radar Track Configuration Parameters

Robert Frye

16 Nov 95

Revision C

1\. OBJECT NAME \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

Ephemeris file code \# \_\_\_\_\_\_\_\_\_

2\. TRACK DATE (local) \_\_\_\_ \_\_\_\_\_\_ \_\_\_\_ Day
\_\_\_\_\_\_\_\_\_\_\_\_\_\_

3\. TRACK Tx WINDOW (local) \_\_\_\_:\_\_\_\_ to \_\_\_\_:\_\_\_\_

4\. SAMPLE RATE \_\_\_\_\_\_\_\_\_\_\_ Hz

or \_\_\_\_\_\_\_\_ u sec

5\. RECORD PARAMETERS

VOLTAGE samples

16 bit (short) \_\_\_\_

8 bit (char) \_\_\_\_

FFTs \_\_\_\_

PSDs \_\_\_\_

6\. FFT SIZE

128 \_\_\_\_

256 \_\_\_\_

512 \_\_\_\_

1024 \_\_\_\_

2048 \_\_\_\_

4096 \_\_\_\_

8192 \_\_\_\_

16384 \_\_\_\_

7\. HOP STATES \_\_\_\_

8\. TOTAL HOP BANDWIDTH \_\_\_\_\_\_\_\_\_\_\_ Hz (Note 1)

9\. HOP DWELL TIME \_\_\_\_\_ integer sec

10\. PSD AVERAGE COUNT \_\_\_\_\_

11\. EPHEMERIS FILE NAME \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.pch

12\. TRANSMIT STATION

DSS 12 \_\_\_\_

DSS 13 \_\_\_\_

DSS 14 \_\_\_\_

DSS 15 \_\_\_\_

DSS 24 \_\_\_\_

13\. RECEIVE STATION

DSS 12 \_\_\_\_

DSS 13 \_\_\_\_

DSS 14 \_\_\_\_

DSS 15 \_\_\_\_

DSS 24 \_\_\_\_

14\. SKY FREQUENCY \_\_\_\_\_\_\_ MHz

15\. TRANSMITTER OUTPUT POWER \_\_\_\_\_\_\_ kW

16\. NOISE TEMPERATURE

CH 1 \_\_\_\_\_\_ deg K

CH 2 \_\_\_\_\_\_ deg K

CH 3 \_\_\_\_\_\_ deg K

CH 4 \_\_\_\_\_\_ deg K

CH 5 \_\_\_\_\_\_ deg K

CH 6 \_\_\_\_\_\_ deg K

CH 7 \_\_\_\_\_\_ deg K

CH 8 \_\_\_\_\_\_ deg K

17\. ANTENNA AZIMUTH \_\_\_\_\_\_ deg

18\. ANTENNA ELEVATION \_\_\_\_\_\_ deg

Note 1: Sample HOP BANDWIDTH

HOP STATES 4

HOP BANDWIDTH 20 kHz

HOP SPAN 15 kHz

PLO BANDWIDTH 5 kHz

\|\<\-\-\-\-\-\-- Total Hop Bandwidth = 20 kHz \-\-\-\-\-\-\--\>\|

\| \|

\|\<- 5 kHz -\>\|\<- 5 kHz -\>\|\<- 5 kHz -\>\|\<- 5 kHz -\>\|

\|\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\--\|

\| \| \| \| \| \| \| \| \|

\| hop \| hop \| hop \| hop \|

\| \| \| \| \| \| \| \| \|

\|\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\--\|

\| \|\<\-\-\-\-\-\-- Hop Span = 15 kHz \-\-\-\-\-\--\>\| \|

**APPENDIX B GSSR VME DAS DSS14 BOOT PARAMETERS**

\[VxWorks Boot\]: p

boot device : scsi;1,0

processor number : 0

host name : intruder

file name : /GSSR0_DR1/vxWorks

inet on ethernet (e) : 158.154.2.20:ffffff00

host inet (h) : 158.154.2.15

gateway inet (g) : 158.154.2.1

user (u) : robert

flags (f) : 0x0

target name (tn) : gssrvme0

startup script (s) : /GSSR0_DR1/dss14136.scr

other (o) : ei