Raymar DSP9612 User Manual

DSP9612 Flash Poll

Modem User’s Guide

0049-0117-100 DSP9612 Flash Poll Modem – User Guide 10/12/2011
Rev. F1

Raymar Information Technology, Inc.

7325 Roseville Road

Sacramento, CA 95842

800-695-1951

Fax: [phone]

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The products and programs described in this User’s Guide are licensed products
of Raymar-Telenetics. This User’s Guide contains proprietary information
protected by copyright, and this User’s Guide and all accompanying hardware
and documentation are copyrighted.

Raymar-Telenetics does not warrant that the hardware will work properly in all
environments and applications, and makes no warranty and representation,
either implied or expressed, with respect to the quality, performance,
merchantability, or fitness for a particular purpose.

Information in this User’s Guide is subject to change without notice and does not
represent a commitment on the part of Raymar-Telenetics. Raymar-Telenetics
assumes no responsibility for any inaccuracies that may be contained in this
User’s Guide.

Raymar-Telenetics makes no commitment to update or keep current the
information in this User’s Guide, and reserves the right to make changes to this
User’s Guide and/or product without notice.

No part of this manual may be reproduced or transmitted in any form or by any
means, electronic or mechanical, including photocopying, recording, or
information storage and retrieval systems, for any purpose other than the
purchaser's personal use, without the express written permission of Raymar­Telenetics.

© Copyright 2011 Raymar Information Technology, Inc.
7325 Roseville Road
Sacramento, California 95842
Tel: [phone] Direct: [phone]
Fax: [phone]
Web site: www.raymarinc.com

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Contents

CHAPTER 1 INTRODUCTION ……………………….. 5

F

EATURES ………………………………………………... 6

APPLICATIONS ……………………………………………. 7

CHAPTER 2 INSTALLATION …………………………9

UNPACKING YOUR HARDWARE ………………………….. 9
ADDITIONAL ITEMS YOU NEED …………………………… 9
HARDWARE OVERVIEW ………………………………… 10

Back View ……………………………………………... 10
Front View……………………………………………… 11

NSTALLATION SUMMARY ……………………………….. 12

I
F

INDING A SUITABLE LOCATION …………………………12

CONFIGURING THE MODEM ……………………………...13

SW1 DIP Switch Settings…………………………….. 14
SW2 DIP Switch Settings…………………………….. 17
SW3 DIP Switch Settings……………………………..21

CONNECTING TO A TRANSMISSION LINE ……………….. 26
CONNECTING TO A VOLTAGE SOURCE …………………. 27
CONNECTING AN RS-232 DEVICE ………………………28
LEDS …………………………………………………… 29
LOOPBACK CONTROL SWITCH …………………………. 30

APPENDIX A TROUBLESHOOTING ……………… 32

PROBLEM SOLVING ……………………………………...32

APPENDIX B DIP SWITCH SUMMARY ……………33
APPENDIX C SPECIFICATIONS …………………... 35

ENERAL SPECIFICATIONS …………………………… 35

G
M

ECHANICAL SPECIFICATIONS ……………………….. 36

NTERFACE CONNECTOR PIN ASSIGNMENTS …………. 37

I

RS-232 (DTE) Interface………………………………. 38

ENVIRONMENTAL SPECIFICATIONS……………………… 38
C

OMPLIANCES ………………………………………….. 39

APPENDIX D COMPLIANCES ……………………... 40
ADAPTING AC TO DC ……….……………………... 42
APPENDIX E LIMITED PRODUCT WARRANTY….45
APPENDIX F RMA PROCEDURE………………….. 47

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NOTES

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Chapter 1
Introduction

Congratulations for purchasing the finest industrial-grade fast-poll modem

available.
The Telenetics DSP9612 (Flash Poll) modem is a 9600/4800/0-1800 bps

modem designed for 4-wire, full-duplex or 2-wire, half-duplex operation
over a voice-band leased line or private line. The modem is designed
utilizing the latest digital-signal processing (DSP) technology to achieve
high performance. The modem employs Telenetics’ proprietary modulation
and encoding scheme to achieve fast modem training time. The modem is
also backward compatible with Bell 202 and ITU-T V.23 modems.

The DSP9612 modem is ideally suited for multi-point communication
systems that require fast response time, short training time, and low
throughput delay. The DSP9612 is the most technologically advanced
modem on the market.

This User’s Guide describes both the DSP9612FP (AC-powered) modem
and the DSP9612-LV (DC-powered) modem. This manual is intended to
let you get your modem “up and running” as quickly as possible. It
contains all the information you need to configure and install your modem.
It also contains troubleshooting information in the unlikely event you
encounter a problem with your modem.

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Features

The DSP9612 modem is specifically designed for harsh environments
found in utility substations and industrial facilities. Though functionally
similar to commercial modems, the DSP9612 provides the following
unique features that make it well suited for utility and industrial
applications.

 Packaged in a rugged, compact enclosure for industrial applications.
 Leased-line interface protected with heavy-duty surge protection

hardware (15KV).

 Requires no human intervention, making it ideal for unmanned

locations.

 Works within an extended temperature range of -40ºC to +85ºC.
 Designed with coupling transformers for high-voltage isolation and

common mode noise rejection in industrial and commercial
environments.

 Operate over voice-band conditioned or unconditioned leased line and

pilot wires.

 Accepts power from a wide range of AC and DC power supplies.

− DSP9612FP: 85 to 265 VAC or 85 to 400 VDC

− DSP9612-LV: 10 to 53 VDC

 Standard industrial connectors for data, analog, and power interfaces

allow reliable interconnection to other industrial equipment.

 Asynchronous data rates (selectable) of 9600, 4800, and 0-1800 bps.
 Easily accessible DIP switches for user configuration and option

selection.

 DB25 connector for RS-232/V.24 interface.
 Local analog, local digital and remote digital loopback diagnostics

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Applications

The DSP9612 modem is designed for point-to-point and multipoint data
communications. Figure 1-1 shows a typical multipoint configuration.

Figure 1-1. Network of Multipoint Configuration

There are a number of factors that can affect the network’s and modem’s
operation and performance. These include:

 Operating speed
 2-wire or 4-wire configuration
 Transmission line characteristics, noise, and line impairments
 Network configuration (point-to-point or multipoint)
 Number of nodes on the network

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NOTES

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Chapter 2
Installation

This chapter describes how to install the modem.

Unpacking Your Hardware

Your package should include:

 At least one of the following DSP9612 modems:

− Model DSP9612FP for 85 to 265 VAC or 85 to 400VDC

− Model DSP9612-LV for 10 to 53 VDC

 A leased-line cable
 A shielded DC power cable (model DSP9612-LV modem only)
 User’s Guide CD

If your package contents are damaged or missing, please contact your place of
purchase immediately.

Additional Items You Need

To use your modem, you need the following additional items:

 Two- or four-wire transmission line or leased line
 A DB25-F data cable for your Data Terminal Equipment (DTE) port

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 A power supply that provides either:

− 85 to 265 Volts AC, 50 to 60 Hz, single phase or 85 - 400
VDC (if you have the model DSP9612FP modem), or

− 10 to 53 Volts DC (if you have the model DSP9612-LV
modem)

Hardware Overview

Back View

Figures 2-1 and 2-2 show the back view of the two DSP9612 modem models. Starting
from the left side, these views show:

 A 4-wire/2-wire configuration block. See page 26.
 A female, 25-pin RS-232 connector, for connecting a standard DTE (RTU). See

page 28.

 A POWER ON/OFF switch.
 A power connector. See page 27.

Figure 2-1. Back View of Model DSP9612FP Modem

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Figure 2-2 Back View of Model DSP9612-LV Modem

Front View

The Model DSP9612FP and Model DSP9612-LV modems have identical front panels.
Figure 2-3 shows the front view of the modem. Starting from the left side, this view
shows:

 A set of nine LEDs.
 A loopback test switch.

Figure 2-3 Front View of Modem

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Installation Summary

The modem installation involves the following steps:

1. Finding a suitable location for the modem. See the section below.

2. Configuring the modem.

3. Connecting to a transmission line.

4. Connecting to a voltage source.

5. Connecting a DTE device.

Finding a Suitable Location

The location you select should provide easy access to the back panel
communications interface(s) and front panel power interface. It should
also let you view all the LEDs on the front panel.

Note: Raymar-Telenetics also offers a rack-mount version of this
modem (Model DSP9612RM) as a plug-in module for the
Telenetics/UDS RM16M Central Site Modem Rack.
For more information, contact Raymar-Telenetics Sales Department
at 916-783-1951.

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Configuring the Modem

You configure the modem using the three sets of DIP switches on the
bottom of the modem.

,

IMPORTANT

It is important to follow the three steps
described below, in the order shown, to
ensure that you configure your modem
properly using the modem DIP switches:

1. Use DIP switch 3 (SW3) to configure the

modem for your host DTE interface and
network topology. Using SW3, you select
the modem to operate in high-speed fast­poll or low-speed (FSK) mode.

2. If you set SW3 for FSK mode in step 1,

use DIP switch 2 (SW2) to configure the
modem for either Bell 202T or ITU-T V.23
compatibility. Otherwise, you can use the
modem in fallback mode.

3. Use DIP switch 1 (SW1) to select the

modem’s transmitter output level and
receiver dynamic range. The SW1 settings
apply for both high-speed fast-poll and
low-speed (FSK) modes.

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SW1 DIP Switch Settings

SW1 is an 8-position DIP switch. Table 2-1 shows the modem switch
settings for DIP switch SW1. A description of the SW1 switch settings
follows the table.

Note:

SW1 settings apply for both high-speed fast­poll and low-speed (FSK) modes

Table 2-1. Modem Switch Settings for DIP Switch SW1

Switch Settings Switches

ON OFF

(Default)

SW1-1 − 1-4: Transmit

(see Table 2-2 on page 15)

Level (page 15)
SW1-5: Receiver Dynamic

Range

−10 to −43
dBm

+3 to −30
dBm

(page 16)
SW1-6: TX Cable Equalizer

Enabled Disabled

(page 16)
SW1-7: RX Cable Equalizer

Enabled Disabled

(page 16)
SW1-8: Anti-streaming

Active Inactive

(page 16)

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SW1-1 through SW1-4 − Transmit Level

Switches SW1-1 through SW1-4 adjust the modem’s transmit level. Table
2-2 shows the transmit levels you can select using these switches.

Table 2-2 Transmit Levels

SW1 through SW4 Switch Settings

Transmit

SW1-1 SW1-2 SW1-3 SW1-4

Level

0 dBm OFF OFF OFF OFF

−1 dBm

−2 dBm

−3 dBm

−4 dBm

−5 dBm

−6 dBm

−7 dBm

−8 dBm

−9 dBm

−10 dBm

−11 dBm

−12 dBm

−13 dBm

−14 dBm

OFF OFF OFF ON
OFF OFF ON OFF
OFF OFF ON ON
OFF ON OFF OFF
OFF ON OFF ON
OFF ON ON OFF
OFF ON ON ON

ON OFF OFF OFF
ON OFF OFF ON
ON OFF ON OFF
ON OFF ON ON
ON ON OFF OFF
ON ON OFF ON
ON ON ON OFF

+3 dBm ON ON ON ON

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SW1-5 − Receiver Dynamic Range

SW1-5

ON = −10 to −43 dBm
OFF = +3 to −30 dBm

For a low receive signal level, set SW1-5 to ON (−43 dBm ). For short
distances or to select a strong receive signal, set SW1-5 to OFF.

SW1-6 and SW1-7 − Cable Equalizer (Fast-Poll Mode Only)

SW1-6 ON = Enable TX Cable Equalizer

OFF = Disable TX Cable Equalizer

SW1-7 ON = Enable RX Cable Equalizer

OFF = Disable RX Cable Equalizer

To improve or extend the modem’s polling performance, use the fixed
Compromise Cable Equalizer when polling on long metallic circuits. The
cable equalizer is active only when the modem is in fast-poll mode (SW3-1
set to OFF).

SW1-8 − Anti-streaming

SW1-8 ON = Anti-streaming active

OFF = Anti-stream inactive

Typically, anti-streaming is used in multi-point applications to prevent a
malfunctioning slave modem from occupying the line indefinitely. When
anti-streaming is active, the modem can transmit data for a maximum of
27 seconds before the transmitter turns off automatically. The modem
then looks for an ON-to-OFF Request To Send (RTS) transition before
proceeding with normal operation. Anti-streaming can be selected in either
high-speed or low-speed mode.

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SW2 DIP Switch Settings

SW2 is an 8-position DIP switch. Table 2-3 shows the modem switch
settings for DIP switch SW2. A description of the SW2 switch settings
follows the table.

Table 2-3 Modem Switch Settings for DIP Switch SW2

Switch Settings Switches

ON OFF

(Default)

SW2-1: FSK Mode V.23 Bell 202
SW2-2: Receiver Squelch

(page 18)
(valid for FSK mode, 2-wire
half-duplex operation only)

SW2-3: FSK Soft Carrier
(page 19)

SW2-4 and SW2-5: FSK
RTS-CTS Delay (page 19)

SW2-6: FSK CD Delay
(page 20)

SW2-7: Remote Loopback
(page 20)

SW2-8: Reserved (Test
Only) (page 20)

Turnaround
Squelch
(Bell 202):
8ms

Turnaround
Squelch

Turnaround
Squelch (Bell

202): 0ms
Turnaround

Squelch

(V.23): 0ms
(V.23):
150ms

Disabled Enabled

(see Table 2-4)

23ms 6ms

Enabled Disabled

Test Normal

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SW2-1 − FSK Mode

SW2-1 ON = ITU-T V.23 mode

OFF = Bell 202 mode

The modem has two FSK modes:

 Bell 202, which supports data rates from 0 to 1800 bps
 ITU-T V.23, which supports data rates from 0 to 1200 bps

SW2-1 configures the modem for either of these FSK modes. Setting
SW2-1 to ON selects ITU-T V.23 mode. In this mode, the modem
complies with ITU-T (CCITT) recommendation V.23 with the following
parameters:

 Mode 2 modulation only
 No backward channel
 No provisions for disablement of echo suppressors
 DTR (circuit 108) is ignored

Setting SW2-1 OFF selects Bell 202 mode.

SW2-2 ⎯ Receiver Squelch (FSK Mode 2-Wire Half-Duplex Only)

SW2-2 ON = 8ms for Bell 202, 150ms for ITU-T V.23

OFF = 0ms

SW2-2 configures the turnaround squelch delay and is valid when the
following are active:

 FSK mode (SW3-1 ON)
 2-wire half-duplex operation (SW3-7 ON)

Setting this switch to OFF configures the modem to enable its receiver
immediately after the Request To Send (RTS) signal is turned off.

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When this switch is set to OFF and the modem is configured for 2-wire,
half-duplex mode (SW3-7 ON), the modem squelches the receiver after
RTS is turned off to prevent far-end echoes from causing data errors. The
duration that the modem squelches the receiver is either:

 8 milliseconds if the modem is configured for Bell 202 mode (SW2-1

OFF)

 150 milliseconds if the modem is configured for ITU-T V.23 mode

(SW2-1 ON)

SW2-3 ⎯ FSK Soft Carrier (Bell 202 FSK Mode Only)

SW2-3 ON = None

OFF = 8ms

SW2-3 controls the soft carrier and is valid for Bell 202 FSK mode only
(SW2-1 set to OFF). Setting this switch to OFF will configure the modem
to transmit a 900 Hz soft carrier to the remote modem for 8 milliseconds
after RTS is turned off. Setting this switch to ON will prevent the modem
from transmitting a soft carrier after RTS is turned off.

SW2-4 and SW2-5 ⎯ RTS-CTS Delay (Bell 202 Mode Only)

Switches SW2-4 and SW2-5 determine the duration of the RTS-CTS delay
in Bell 202 mode. Table 2-4 shows how to set these switches to select the
appropriate setting.

Table 2-4. RTS-CTS Delay Settings in Bell 202 Mode

To Select
a Delay
of…

33ms OFF ON
59ms ON OFF

219ms ON ON

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Set SW2-4
to…

And Set SW2­5 to…

8ms OFF OFF

When the modem is configured for V.23 operation (SW2-1 ON), the RTS­CTS delay is fixed at 33 ms.

SW2-6 ⎯ FSK CD Delay (Bell 202 Mode Only)

SW2-6 ON = 23ms

OFF = 6ms

SW2-6 selects the FSK CD delay and is valid when Bell 202 mode is
active (SW2-1 OFF). Setting SW2-6 ON configures the modem to turn on
CD 23 milliseconds after it detects a valid carrier signal. Setting this switch
to OFF configures the modem to turn on CD 6 milliseconds after it detects
a valid carrier signal.

This switch setting is deactivated when the modem is configured for V.23
mode (SW2-1 ON) and a delay of 18 milliseconds is used instead.

SW2-7 ⎯ Remote Loopback

SW2-7 ON = Loopback enabled

OFF = Loopback disabled

During instances of channel noise, the modem may mistaken a received
preamble as a request to go into remote digital loopback. Setting SW2-7
to OFF prevents the modem from participating in a remote digital loopback
with another modem. SW2-7 does not prevent the modem from sending a
remote digital loopback request to a remote modem.

SW2-8 − Reserved (Test Only)

SW2-8

Must be OFF

SW2-8 must be in the OFF position for normal operation.

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SW3 DIP Switch Settings

SW3 is a 10-position DIP switch. Table 2-5 shows the modem switch
settings for DIP switch SW3. A description of the SW3 switch settings
follows the table.

Table 2-5. Modem Switch Settings for DIP Switch SW3

Switch Settings Switches

ON OFF

(Default)

SW3-1: Fast Poll/FSK
(page 22)

SW3-2: Data Rate (page

23)
SW3-3: Async Character

(page 23)
SW3-4: Auto RTS (page

23)
SW3-5: Transmitter

Termination (page 24)
SW3-6: Reserved (Test

Only) (page 24)
SW3-7: 2- or 4-wire (page

24)
SW3-8: Carrier Control

(page 25)
SW3-9: Rx Termination

SW3-10: Signal Ground
and Earth Ground Option
(page 25)

FSK Fast Poll

Auto-Rate
4800 bps 9600 bps

11 bits 10 bits

Enabled Disabled

Switched by

600 Ω
RTS

Test Normal

2-wire, half­duplex

4-wire, full-

duplex
Constant Switched

600 Ω

High Rx

Impedance
Connected Separated

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SW3-1 − Fast Poll Auto Rate/FSK

SW3-1 ON = Low-Speed Mode (FSK)

OFF = High-Speed Mode (Fast Poll)

The modem has two operating modes:

 FSK mode, which supports data rates from 0 to 1800 bps.
 Fast-poll mode, which supports data rates of 4800 and 9600 bps.

SW3-1, along with the Data Rate Selector (DRS) pin on the modem’s RS­232 connector, configures the modem for either FSK or fast-poll mode.
Table 2-6 shows how SW3-1 and the DRS signal configure the modem for
these operating modes.

Table 2-6. Modem Operating Mode

To Select… Set SW3-1

to…

Fast-poll

OFF Is not connected

mode

And the DRS
Signal…

or is set HIGH
FSK mode OFF Is set LOW
FSK mode ON Doesn’t care

You should use the DRS signal in RTS control mode. It does not work in
either constant carrier mode (SW3-8 set to ON) or in the auto-RTS mode
(SW3-4 set to ON). The DRS signal is only sampled when the transmitter
is idle (when not sending a preamble, data, or a turn-off sequence).

Note that DRS control both the transmitter and receiver. If DRS changes
states while the modem is receiving a preamble, data, or a turn-off
sequence, the state of the receiver is unknown until the carrier drops and
a new preamble is received. We recommend that DRS do not change
states until both the local and remote modems’ transmitters are in the idle
state. When they are, both the local and remote modems’ DRS signal
should change states.

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SW3-2 − Data Rate (Fast-Poll Mode Only)

SW3-2 ON = 4800 bps

OFF = 9600 bps

SW3-2 configures the modem speed. When the modem is in high-speed
fast-poll mode (SW3-1 OFF), setting SW3-2 ON selects 4800 bps, while
setting SW3-2 OFF selects 9600 bps.

SW3-3 − Async Character (Fast-Poll Mode Only)

SW3-3 ON = 11 bits

OFF = 10 bits

Switch SW3-3 selects whether the async character is 10 or 11 bits long.
When the modem is in high-speed fast-poll mode (SW3-1 OFF), setting
SW3-3 ON selects an 11-bit async character while setting SW3-3 OFF
selects a 10-bit async character.

SW3-4 − Auto RTS (Fast-Poll Mode Only)

SW3-4 ON = Enable Auto RTS

OFF = Disable Auto RTS

For data terminals that do not support hardware RTS, set SW3-4 to ON to
enable auto RTS mode. In this mode, TXD is detected at the modem and
an internal RTS signal is turned ON. After training completes, the TXD is
transmitted to the remote modem. The transmitter turns off if no TXD is
detected after 1 character length of idle time. Auto RTS is used in fast-poll
mode only (SW3-1 set to OFF).

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SW3-5 − Transmitter Termination

SW3-5 ON = Switched by RTS

OFF = 600 Ω

SW3-5 is used for multi-point configuration networks. When multiple
modems are connected on the same metallic circuit:

 The transmitter termination should be of high impedance if the modem

is not transmitting.

 The transmitter is only terminated with 600 ohms when RTS is

asserted.

This configuration should be used for all slave modems to prevent the
transmitting modem from being unnecessarily burdened. To select this
configuration, set SW3-5 ON on the slave modems.

If you use the modem with transmission lines that are transformer-coupled
or with an impedance-isolated network (such as a transformer bridge), set
SW3-5 OFF for proper operation.

SW3-6 − Reserved (Test Only)

SW3-6

Must be OFF

SW3-6 must be in the OFF position for normal operation.

SW3-7 − 2-/4-Wire Operation

SW3-7 ON = 2-Wire, Half-Duplex Mode

OFF = 4-Wire, Full-Duplex Mode

SW3-7 configures the modem for 4-wire full-duplex or 2-wire half-duplex
operation.

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SW3-8 − Carrier Control

SW3-8 ON = Constant

OFF = Switched

SW3-8 selects either constant or switched carrier. Constant carrier allows
DTEs, such as asynchronous dumb terminals or RTUs, to operate with
modems, without the input RTS signal. When constant carrier mode is
enabled (SW3-8 set to ON), the modem forces the transmit carrier active
and the RTS-CTS delay is minimum (<0.5 ms.).

You can use constant carrier in 4-wire, point-to-point or multi-point
applications (from master to slave modems).

In switched-carrier mode (SW3-8 set to OFF), the RTS/CTS delay is
active.

SW3-9 − RX Termination

SW3-9 ON = Enable Rx Termination

OFF = Disable Rx Termination

SW3-9 selects whether RX termination is enabled for a modem. If you set
this switch ON, the receiver is terminated with 600 Ω. If you set this switch
OFF, the receiver is not terminated.

SW3-10 − Grounding Option

SW3-10 ON = Signal Ground and Earth Ground are

Connected
OFF = Signal Ground and Earth Ground are
Separated

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Connecting to a Transmission Line

The modem has a transmission line interface that can be configured for 2­or 4-wire, analog connection, where one pair is used to transmit data (Tx
and Tx) and one pair is used to receive data (Rx and Rx). Table 2-7 shows
the pin numbers and corresponding signals for the modem. Figure 2-4
shows the transmission line interface.

Note:

For communication to occur, the Rx line of
one modem must connect to the Tx line of the
other modem. The modem’s Tx/Rx pair is
non-polarized.

Note:

The modem does not support leased-line
operations with DC current.

Table 2-7. Transmission Line Connector Pin Assignments

This Pin

Number…

Corresponds to This

Signal…

1 Rx
2 Rx
3

Tx

4 Tx

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3

RM Model RJ45

Rx
4 Tx
5 Tx
6 Rx

Figure 2-4. Transmission Line Interface

Connecting to a Voltage Source

The back panel of the modem provides the power interface. For
convenience, the modems can be powered from the following power
sources:

 Model DSP9612FP (AC version): 85 to 265 Volts AC, 50 to 60 Hz,

single phase or 85 to 400 VDC

 Model DSP9612-LV (DC version): 10 to 53 Volts DC. The model

DSP9612-LV comes with a shielded power cord for making this
connection.

Figure 2-1 on page 10 shows the connection to the Model DSP9612FP’s
power interface. Figure 2-2 on page 11 shows the connection to the Model
DSP9612-LV’s power interface.

0049-0117-100 DSP9612 Flash Poll Modem – User Guide 10/12/2011
Rev. F1 Page 27 of 44

,

WARNING

Before you connect a voltage source,
observe the following power supply
voltage guidelines. Otherwise, you will
void your warranty if the wrong voltage
is applied.

 Be sure the voltage source is within the

permitted ranges shown above.
Otherwise, your modem and any
attached devices may be damaged.

 Customer-supplied cables must be

suitable for the site environmental
conditions.

 Screw terminals on the power interface

accept 24 to 16 AWG. However, surge
protection is guaranteed only if the
ground wire is greater than 18 AWG
and if there is a solidly earthed ground
connection.

 Be sure the power source is not

controlled by a wall switch, which can
be inadvertently turned off, shutting off
power to the modem.

Connecting an RS-232 Device

The modem back panel provides a female, 25-pin RS-232 connector that
accepts an attached RS-232 device (see Figure 2-1 on page 10). This
connector accepts a standard connection to a DTE (RTU) that conforms to
the pin assignments shown under “RS-232 (DTE) Interface”.

0049-0117-100 DSP9612 Flash Poll Modem – User Guide 10/12/2011
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LEDs

The front panel of the modem provides the LEDs shown in Table 2-8.

Table 2-8. Modem LEDs

LED Color Description

PWR
RTS

Green
Yellow Request To

Power Input

Send

CTS
TD
RD
CD
MR
ALB

Yellow Clear To Send
Yellow Transmit Data
Yellow Receive Data
Yellow Carrier Detect
Yellow Modem Ready
Red* Analog

Loopback

DLB

Red* Digital

Loopback

* When the modem is in remote loopback,

both the ALB and DLB LEDs go ON.

0049-0117-100 DSP9612 Flash Poll Modem – User Guide 10/12/2011
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Loopback Control Switch

The front panel of the modem has a push button for initiating the following
loopback diagnostic tests:

 Local analog loopback ⎯ started by pressing the button one time.
 Local digital loopback ⎯ started by pressing the button two times.
 Remote digital loopback ⎯ set the local modem’s RTS signal to low.

Then press the local modem’s diagnostics button three times and raise
the local modem’s RTS signal to start the test. The ALB and DLB
LED’s go ON when the modem is in Remote Digital Loopback. This
test is available in fast-poll mode only.

Note:

SW2-7 ON = Loopback enabled

OFF = Loopback disabled

During instances of channel noise, the modem may mistake a received
preamble as a request to go into remote digital loopback. Setting SW2-7
to OFF prevents the modem from participating in a remote digital loopback
with another modem. SW2-7 does not prevent the modem from sending a
remote digital loopback request to a remote modem.

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Figure 2-4 illustrates these three diagnostics.

Figure 2-4. Loopback Diagnostics

0049-0117-100 DSP9612 Flash Poll Modem – User Guide 10/12/2011
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Appendix A
Troubleshooting

In the event you encounter a problem using your Telenetics modem, refer
to the troubleshooting information in this appendix.

,

IMPORTANT

If you encounter a problem with your
modem, be sure the switches on the
bottom of the modem are set to the
appropriate positions. If a switch is
halfway between an on and off setting,
the modem will not operate properly.

Problem Solving
Table A-1 offers troubleshooting solutions for modem problems.

Table A-1. Troubleshooting Suggestions

If… Perform These

Procedures…

Modem does not
respond to the
attached DTE and the

Check the power supply
input for your specific model

(see page 27).
all LEDs are off.
Modem does not
receive data, and the
DCD and RxD LEDs
are off.

The receive line pair may be

disconnected from the

modem. Make sure the

transmission line connection

to the modem is accurate

and secure.

The receive signal level may

be below the CD threshold.

Set SW1-5 ON to see

whether configuring the

modem for a −43 dBm

threshold resolves the

problem.

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Table A-1. Troubleshooting Suggestions

If … Perform These Procedures …
The RTS, CTS, and
TxD LEDs do not blink.

The attached terminal or DTE may not
be sending data to the modem. Verify
that data is being transmitted. If data is
being transmitted, make sure the RS­232 cable is sound and securely
connected to the modem and terminal
or DTE.

Appendix B
DIP Switch Summary

Switch Settings Switches

ON OFF

(Default)

SW1-1 − 1-4: Transmit
Level (page 15)

SW1-5: Receiver Dynamic
Range
(page 16)

SW1-6: TX Cable Equalizer
(page 16)

SW1-7: RX Cable Equalizer
(page 16)

SW1-8: Anti-streaming
(page 16)

SW2-1: FSK Mode V.23 Bell 202

(see Table 2-2 on page 15)

−10 to −43
dBm

Enabled Disabled

Enabled Disabled

Active Inactive

+3 to −30
dBm

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SW2-2: Receiver Squelch
(page 18)
(valid for FSK mode, 2-wire
half-duplex operation only)

SW2-3: FSK Soft Carrier
(page 19)

SW2-4 and SW2-5: FSK RTS­CTS Delay (page 19)

SW2-6: FSK CD Delay (page

20)
SW2-7: Remote Loopback

(page 20)
SW2-8: Reserved (Test Only)

(page 20)

SW3-1: Fast Poll/FSK (page

22)
SW3-2: Data Rate (page 23) 4800 bps 9600 bps
SW3-3: Async Character

(page 23)
SW3-4: Auto RTS (page 23) Enabled Disabled
SW3-5: Transmitter

Termination (page 24)
SW3-6: Reserved (Test Only)

(page 24)
SW3-7: 2- or 4-wire (page 24) 2-wire, half-

SW3-8: Carrier Control (page

25)
SW3-9: Rx Termination

SW3-10: Signal Ground and
Earth Ground Option (page

25)

Turnaround
Squelch (Bell

202): 8ms
Turnaround

Squelch
(V.23): 150ms

Disabled Enabled

23ms 6ms

Enabled Disabled

Test Normal

FSK Fast Poll Auto-

11 bits 10 bits

Switched by
RTS

Test Normal

duplex
Constant Switched

600 Ω
Connected Separated

Switch Settings Switches

ON OFF (Default)

Turnaround
Squelch (Bell

202): 0ms
Turnaround

Squelch
(V.23): 0ms

(see Table 2-4)

Rate

600 Ω

4-wire, full­duplex

High Rx
Impedance

0049-0117-100 DSP9612 Flash Poll Modem – User Guide 10/12/2011
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Appendix C
Specifications

General Specifications

Data rate: 9600, 4800, or 0-1800 bps asynchronous
Data format: 8 or 9 data bits with 1 or more stop bits
DTE interface: EIA RS-232 or V.24 compatible
Line conditions: TELCO Voice band 4- or 2-wire leased line, conditioned or

unconditioned
Private metallic circuits up to 9.5 miles (24 AWG) without

cable equalizer. Up to 15.0 miles (24 AWG) with TX and RX
cable equalizer

Operating modes: 2-wire half-duplex or 4-wire full-duplex
Modulation: High-speed fast poll – Telenetics proprietary

FSK, Bell 202T or V.23 compatible

• Mark = 1200 Hz (1300 Hz, V.23)

• Space = 2200 Hz (2100 Hz, V.23)

• Soft Carrier = 900 Hz (Bell 202T only)

Equalizer: Automatic, adaptive
RTS-CTS Delay: 23 ms. (fast poll)

8, 33, 59, or 219 ms (Bell 202)
33 ms (V.23)

Receiver
dynamic range: 0 to –30 dBm or –10 to –43 dBm

Operating
temperature: -40°C to +85°C

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Power supply: Wide range switching power supply:

• DSP9612FP (AC version): 85 to 265Volts AC, 50/60
Hz, single phase or 85 to 400 VDC

• DSP9612-LV (DC version):10 to 53 Volts DC

Surge protection: Leased line, up to 15KV

Carrier control: Constant or switched, DIP switch selectable

Carrier loss
recovery: Train on Data

Throughput delay: Less than 10 milliseconds for fast polling.

Auto RTS: Support DTE without hardware RTS

(high speed only)

Anti-Streaming: 27-second timer to prevent transmitter lock-up network

Mechanical Specifications

Enclosure: Aluminum with removable front and rear panels
Dimensions: 5.70” wide x 8.30” long x 1.50” high
Weight: 1.9 lbs.

Interface connectors
Leased line: 4-position screw terminal.

Data Terminal
Equipment: DB-25 female connector

0049-0117-100 DSP9612 Flash Poll Modem – User Guide 10/12/2011
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ode

5

Interface Connector Pin Assignments

Leased Line Terminal Block Pin Assignments

This Pin

Number…

Corresponds to

This Signal…

1 Rx
2 Rx
3 Tx
4

3
4
5
6

RM M

Tx

l RJ4

Rx
Rx
Tx
Tx

Back-to-Back Connection to a Second Modem

0049-0117-100 DSP9612 Flash Poll Modem – User Guide 10/12/2011
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RS-232 (DTE) Interface

Signal

Name

Earth

GND

TXD Input 2 Transmit

Modem

Input/Output

⎯

DB25

Pin

1 Earth Ground

Description

Data

RXD Output 3 Receive Data

RTS Input 4 Request To

Send

CTS Output 5 Clear To

Send

DSR Output 6 Data Set

Ready
(Modem
Ready)

SG

DCD Output 8 Data Carrier

DRS Input 23 Data Rate

⎯

7 Signal

Ground

Detected

Select

Environmental Specifications

Operating temperature: -40 to + 85o C
Storage temperature: -40 to +125
Operating humidity: 5 to 95 %, non-condensing
Line Isolation: 3750 V RMS
Surge protection: Leased line up to 15K VA

o

C

0049-0117-100 DSP9612 Flash Poll Modem – User Guide 10/12/2011
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Compliances

The modem is designed to meet the following agency requirements:

EMI/RFI:

FCC part 15 for Class A computing device
Industry Canada (Emissions)

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Appendix D

Compliances

This device complies with Part 15A of the FCC Rules. Operation is subject
to the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.

This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to Part 15A of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not
occur in a particular installation. 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 to correct
the interference by one or more of the following measures:

 Reorient or relocate the receiving antenna.
 Increase the separation between the equipment and the receiver.
 Connect the equipment to an outlet on a circuit other than the one

to which the receiver is connected.

 Consult the dealer or an experienced radio/TV technician for help.

If none of these actions resolves the problem, consult your distributor or
an experienced radio/television technician for additional suggestions.

Additionally, Section 15.838, paragraph d), of the FCC Rules and
Regulations states: “Where special accessories, such as shielded cables,
are required in order to meet FCC regulations, shielded cables must be
used with this equipment. Operation with non-approved equipment or
unshielded cables is likely to result in interference to radio and TV
reception. The user is cautioned that changes and modifications to this
equipment without the approval of the manufacturer could void the user’s
authority to operate this equipment.

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Department of Canada Statement

This Class A digital apparatus meets all requirements of the Canadian
Interference-Causing Equipment Regulations.

Cet appareil numerique de la classe A respecte toutes les exigences du
Reglement sur le materiel brouilleur du Canada.

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0049-0117-100 DSP9612 Flash Poll Modem – User Guide 10/12/2011
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Raymar Information Technology, Inc.

Limited Warranty

One Year Limited Hardware Warranty

Raymar Information Technology, Inc., dba Raymar-Telenetics, warrants their products against defects in hardware, material and workmanship under normal
use for one (1) year from the date of purchase. Raymar will, at no charge, either repair the product (with new or reconditioned parts), or replace it (with a
new or reconditioned product). Repaired replacement products are warranted for either 90 days or the remainder of the original warranty period, whichever is
longer. This warranty extends to the original end-user only.

What This Warranty Does Not Cover

This warranty does not cover: (a) software; (b) installation or service of the product; (c) conditions resulting from consumer damage such as impr oper
maintenance or misuse, abuse, accident or alteration; (d) all plastic surfaces (including display screens) and all other exposed parts that are scratched or
damaged due to normal use; (e) operation of our pr oducts with equipment not supplied by Raymar (f) products which have had the serial number re moved or
made illegible; or (g) products rented to others. This warranty applies only to hardware products manufactured by or for Raymar Information Technology,
Inc. and identified by the Raymar-Telenetics trademark, trade name or product identification logo affixed to them. Refer to the Service and Support section
of the User’s Guide for service after the warranty expires. No warranty is made as to coverage availability or grade of service provided by the carrier.

General Provisions

This warranty sets forth Raymar’s entire hardware responsibilities regarding this product. Repair, replacement or refund of the purchase price is at Raymar’s
discretion. THIS WARRANTY IS GIVEN IN LIEU OF ALL OTHER EXPRESS WARRANTIES, IMPLIED WARRANTIES, INCLUDING WITHOUT
LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND ARE LIMITED TO THE
DURATION OF THIS LIMITED WARRANTY. IN NO EVENT SHALL RAYMAR BE LIABLE FOR DAMAGES IN EXCESS OF THE PURCHASE
PRICE OF THE PRODUCT, FOR ANY LOSS OF USE, LOSS OF TIME, INCONVENIENCE, COMMERCIAL LOSS, LOST PROFITS OR SAVINGS,
OR OTHER INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THIS RAYMAR
PRODUCT, TO THE FULL EXTENT SUCH MAY BE DISCLAIMED BY LAW. WITHOUT LIMITING THE FOREGOING, RAYMAR SHALL HAVE
NO LIABILITY FOR ANY DATA STORED IN OR USED WITH THE PRODUCT, INCLUDING THE RECOVERY COSTS OF SUCH DATA OR
PROGRAMS.

State Law Rights

SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LIMITATIONS
ON HOW LONG AN IMPLIED WARRANTY LASTS. THE ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO YOU. This warranty
gives you specific legal rights, and you may also have other rights which vary from State to State.

Provincial Law Rights

SOME PROVINCIAL LAWS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF IMPLIED WARRANTIES, THE
EXCLUSION OR LIMITATION OF WARRANTY COVERAGE IN CERTAIN SITUATIONS. SOME OF THE ABOVE
LIMITATIONS OR EXCLUSIONS CONTAINED IN THIS LIMITED WARRANTY MAY NOT APPLY TO YOU. This warranty gives you specific
rights, and you may have other rights which vary from province to province.

How To Use Raymar’s Limited Warranty Service

To take advantage of this warranty, you must do the following:

• If you are having trouble with your product, contact Raymar service using the appropriate number from the Service and Support
section of the User’s Guide. If it is determined that your product requires service, you will be issued a Return Materials
Authorization (RMA) form.

• Pack the defective product securely for shipping. Include only the units pre-approved by service on your RMA form.

• This warranty is void if the product is damaged in transit, you must insure your shipment.

• Ship the defective product, proof of date of purchase, and the RMA form to the address specified.

• Display your RMA number prominently on the outside of the sh ipping box. Customer is responsible for freight in, door to door. Raymar is responsible for
return shipping costs.

• To ensure prompt service, please write on the RMA form a brief description of the problem you are experiencing with the

product.

Raymar Information Technology, Inc.
7325 Roseville Road
Sacramento, CA 95842
Service Hotline [phone]

http://support.telenetics.com

or e-mail to [e-mail]

0049-0117-100 DSP9612 Flash Poll Modem – User Guide 10/12/2011
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Raymar Information Technology, Inc.

Return Merchandise Authorization (RMA) Procedure

Before returning any Raymar-Telenetics product, an RMA number must be obtained.

The most convenient way to obtain an RMA number for a product purchased from Raymar-Telenetics is
to call 1-800-747-1522 ([phone]). When doing so, please have the following information
ready:

- Company name

- Full billing address, as well as the address for the location where the product should be returned

once repaired or replaced

- Telephone & Fax numbers

- Email address

- Product model number and serial number

For each item being returned, please include the product model number, the serial number, a description
of the problem being encountered, and the cause of the problem (if known).

Please note that prior to authorizing a return, a product support specialist may call to verify that the
product is properly installed or may ask you to perform tests to insure that the product has actually
failed.

The product must be properly packed and returned to:

Raymar-Telenetics
7325 Roseville Road
Sacramento, CA 95842

The RMA number must be legibly displayed on the shipping carton. Raymar-Telenetics will not be
responsible for any product returned without an RMA number.

If the product is out of warranty, estimates for repair rates and any applicable shipping costs will be
communicated by a customer service representative. Currently, Raymar-Telenetics accepts purchase
orders or credit cards as payment methods.

Repairs currently require 5 – 10 business days and are returned via UPS Ground.

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