Patton 3040-V35 User Manual

B

DIGITAL BRIDGE

Doc #: 139001UA

Part #: 07M3040-A

3040/V35

(CTS MD-V.35/TCB)

INSTALLATION AND OPERATIONS MANUAL

June 10, 1997

An ISO-9001

Certified Company

Copyright© 2000 Patton Electronics Co., All Rights Reserved

3040/V35

INSTALLATION AND OPERATIONS MANUALPATTON ELECTRONICS CO.

139001UA

COPYRIGHT NOTICE

Copyright© 2000 Patton Electronics Co., All Rights Reserved.

PROPRIETARY NOTICE

The information contained herein is proprietary and confidential to Patton Electronics Co. Any
reproduction or redistribution of this publication, in whole or in part, is expressly prohibited
unless written authorization is given by Patton Electronics Co.

SERVICE

All warranty and non-warranty repairs must be returned freight prepaid and insured to Patton
Electronics. All returns must have a Return Materials Authorization number on the outside of
the shipping container. This number may be obtained from Patton Electronics Technical
Services at:

tel: [phone];
email: [e-mail];
or, www: http://www.patton.com.
NOTE: Packages received without an RMA number will not be accepted.
Patton Electronics’ technical staff is also available to answer any questions that might arise

concerning the installation or use of your Patton MSDs. Technical Service hours: 8AM to 5PM
EST, Monday through Friday.

PUBLICATION NOTICE

This manual has been compiled and checked for accuracy. The information in this manual
does not constitute a warranty of performance. Patton reserves the right to revise this
publication and make changes from time to time in the content thereof. Patton assumes no
liability for losses incurred as a result of out-of-date or incorrect information contained in this
manual.

i

PATTON ELECTRONICS CO. INSTALLATION AND OPERATIONS MANUAL

139001UA

3040/V35

EMISSION REQUIREMENTS

RADIO AND TV INTERFERENCE

The Patton devices generate and use radio frequency energy, and if not installed and used
properly—that is, in strict accordance with the manufacturer’s instructions—may cause
interference to radio and television reception. The Patton devices have been tested and found
to comply with the limits for Class A computing devices in accordance with the specifications
in Subpart J of Part 15 of FCC rules, which are designed to provide reasonable protection
from such interference in a commercial installation. However, there is no guarantee that
interference will not occur in a particular installation. If the Patton devices do cause
interference to radio or television reception, which can be determined by disconnecting the
cables, the user is encouraged to try to correct the interference by one or more of the following
measures: moving the computing equipment away from the receiver, re-orienting the receiving
antenna, and/or plugging the receiving equipment into a different AC outlet (such that the
computing equipment and receiver are on different branches).

CANADIAN EMISSIONS

This digital apparatus does not exceed the Class A limits for noise emmissions from a digital
apparatus set out in the Radio Interference Regulations of the Canadian Department of
Communications.

Le present appareil numerique n’emet pas de bruits redioelectriques depassant les limites
applicables aux appareils numeriques de la Class A prescites dans le Reglement sur le
brouillage redioelectrique edicte par le ministere des Communications du Canada.

ii

3040/V35

INSTALLATION AND OPERATIONS MANUALPATTON ELECTRONICS CO.

139001UA

Contents

CHAPTER 1 - OPERATION

Channel Clocking...............................................................................................................................1-1

Fallback Clocking...............................................................................................................................1-1

Channel Interface...............................................................................................................................1-1

Anti-streaming....................................................................................................................................1-2

Channel Selection Modes..................................................................................................................1-2

Channel Tail Circuits .........................................................................................................................1-3

Interface Connections........................................................................................................................1-4

Front Panel LEDs ..............................................................................................................................1-4

Channel Enable / Disable Switches ..................................................................................................1-4

Power Supply.....................................................................................................................................1-4

CHAPTER 2 - SETUP AND INSTALLATION

Power Connection ............................................................................................................................. 2-1

Factory Configuration Switch Settings ..............................................................................................2-1

Disassembly...................................................................................................................................... 2-2

Installation .......................................................................................................................................... 2-2

Equipment Grounding (SW15-1)....................................................................................................... 2-3

RTS To CTS Delay (SW16-1,2,3)..................................................................................................... 2-3

Anti-Streaming (SW18-1,2,3) ............................................................................................................ 2-3

Receive Data Mode (SW18-7) .......................................................................................................... 2-3

Control Turn-Off Delay in “DATA” Switching Mode (SW15-3,4) ....................................................... 2-4

Switch on Data / Control (SW17-5,6,7,8).......................................................................................... 2-4

Internal Baud Rates (SW15-5,6,7,8) ................................................................................................. 2-4

Fallback Clock Enable (SW16-7) ...................................................................................................... 2-5

Fallback Clocking From Sub-Channel 4 (SW16-8)........................................................................... 2-5

Fallback Mode Selection (SW16-6)................................................................................................... 2-5

TX Clock Source Selection (SW17-1,2,3).........................................................................................2-6

TX Clock Pin Selection (SW17-4) ..................................................................................................... 2-6

RX Clock Source Selection (SW18-4,5,6) ........................................................................................ 2-6

Tail Circuit Buffers (SW16-4) ............................................................................................................2-7

Port DCE/DTE Selection (SW5 thru SW14) ..................................................................................... 2-7

DTR / DSR Forced Active (JP8 thru JP12).......................................................................................2-8

FACTORY Test Jumpers (JP1, JP2 and JP3)..................................................................................2-8

APPENDIX

Typical Application ..............................................................................................................A-1

Typical Tail Circuit Configuration ......................................................................................... A-1

Interface Pins Supported .....................................................................................................A-2

Master DTE / Sub-Channel DTE Interface Flow Diagram ....................................................A-3

Master DTE / Sub-Channel DCE Interface Flow Diagram....................................................A-3

Master DCE / Sub-Channel DCE Interface Flow Diagram...................................................A-4

Master DCE / Sub-Channel DTE Interface Flow Diagram....................................................A-4

TECHNICAL SPECIFICATIONS..........................................................................................A-5

Strapping Guide ..................................................................................................................A-6

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PATTON ELECTRONICS CO.

3040/V35

INSTALLATION AND OPERATIONS MANUAL

139001UA

CHAPTER 1 - OPERATION

The Patton 3040/V35 (CTS MD-V.35/TCB) is a network enhancement accessory intended for
high speed synchronous or asynchronous V.35 modem, DSU/CSU, or port sharing
applications. The 3040/V35 (CTS MD-V.35/TCB) allows for immediate expansion of a
system without the requirement of additional communication lines. The 3040/V35 (CTS MD­V.35/TCB) allows any combination of up to four V.35 DCE or DTE devices to share a single
V.35 DCE or DTE high speed link in a point-to-point or multi-point polled network.

Channel Clocking

The 3040/V35 (CTS MD-V.35/TCB) is protocol transparent and operates in synchronous and
asynchronous environments at data rates up to 2.048Mbps, depending on cable length and
attached equipment. Clocking can be derived from the Master Port clock, (pins Y,AA for TT or
U,W for ETT and V,X for RT), the internal clock generator or any Sub-Channel clock, (pins
Y,AA for TT or U,W for ETT and V,X for RT).

Fallback Clocking

In the event of loss of an externally provided clock or optionally Sub-Channel 1 DCD becoming
inactive, the 3040/V35 (CTS MD-V.35/TCB) has the ability to automatically fall back to the
predetermined internal baud rate clock or the Sub-Channel 4 RX Clock (pins V,X).

Channel Interface

The 3040/V35 (CTS MD-V.35/TCB) has five V.35 (MR-34) female connectors located on the
rear of the unit. Also a DB-25 connector is provided in parallel with the Master Port V.35
connector. Each port is DCE/DTE selectable, which eliminates the need for crossover cables.
DSR or DTR can additionally be forced to the active state individually on each Sub-Channel by
Jumper control.

SUB-CHANNEL STATUS

ACTIVE

PW SD RD 1 2 3 4 1 2 3 4

FB

STREAM

1-1

3040/ V35

ENABLE/DISABLE

1234

OPERATION

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Anti-streaming

PATTON ELECTRONICS CO.

3040/V35

INSTALLATION AND OPERATIONS MANUAL

A typical problem often encountered is a “

STREAMING

” remote terminal. The streaming
problem can tie up an entire circuit until the offending device has recovered or is powered
down. A streaming condition occurs when a Sub-Channel remains active, disrupting the
polling sequence. The 3040/V35 (CTS MD-V.35/TCB) provides two user selectable modes of
controlling a streaming condition, an automatic anti-streaming Abort Timer with eight
selectable block lengths and a setting to disable anti-streaming for large data block transfers,
and a manual Operator Control mode (front panel push button switch).

Automatic Anti-streaming

- Automatic Anti-Streaming will block the asserted control signal
from the Sub-Channel Port, releasing the 3040/V35 (CTS MD-V.35/TCB) to accept requests
from any other Sub-Channel that has not been locked out due to a streaming condition. When
a Sub-Channel is locked out for streaming, a visual indication, by Sub-Channel, is provided on
the front panel.

Any data sent to the Master Port by the streaming device will be lost

The Sub-Channel will no longer receive data or CTS from the Master Port.

. Once a Sub-Channel is
locked out due to streaming, the Sub-Channel will remain locked out until the attached device
removes the streaming condition. If RTS is held active, RTS must become inactive, if
continuous data transitions have triggered the Anti-Stream logic, the transitions must stop
before the 3040/V35 (CTS MD-V.35/TCB) will clear the Anti-Stream logic to that Sub-Channel.
Removing the Sub-Channel via the front panel disable switch will not clear the Anti-stream
logic for a Sub-Channel once it has been activated.

Manual Anti-Streaming

- If manual Anti-Stream protection is chosen, a streaming condition
caused by one of the attached terminals can be quickly corrected by the 3040/V35 (CTS MD­V.35/TCB) via the associated front panel locking switches. A switch is provided for each Sub­Channel and permits the rapid removal of a streaming terminal without having to disconnect
any cables or power down the offending terminal. Terminals may be selectively removed for
self-test and maintenance without affecting the remaining Sub-Channels. Once the streaming
condition has been corrected, the front panel switch is simply depressed to the locked
(Enable) position (Green indicator ON) to re-establish normal operation. Removing a Sub­Channel with the front panel switch will block data from the Sub-Channel going to the Master
Port but will not block data going from the Master Port to the Sub-Channel as the Automatic
Anti-Stream option did.

Channel Selection Modes

The 3040/V35 (CTS MD-V.35/TCB) provides two selectable Sub-Channel service modes of
operation, the Scanning Mode and Priority Mode. Depending on system requirements, either
mode may be selected by internal DIP switch settings. Both modes switch on activity from the
Sub-Channel.

OPERATION

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In the Scanning Mode the CTS 3040/V35 (CTS MD-V.35/TCB) scans each Sub-Channel, in
sequence, beginning with Sub-Channel 1. This rotational sequence is repeated continually
with each attached Sub-Channel having equal access to the communications link. When data
or control lines from a Sub-Channel become active that Sub-Channel is switched through to
the master port by the 3040/V35 (CTS MD-V.35/TCB). All remaining Sub-Channels are
locked out until the first device becomes inactive. When the Sub-Channel device becomes
inactive, the 3040/V35 (CTS MD-V.35/TCB) will resume scanning the Sub-Channels for
another active signal.

When configured for Priority Mode operation, the 3040/V35 (CTS MD-V.35/TCB) monitors all
Sub-Channels simultaneously with Sub-Channel 1 having the highest priority. When a Sub­Channel becomes inactive, the 3040/V35 (CTS MD-V.35/TCB) will automatically default to the
highest priority (lowest number) Sub-Channel with activity.

Contention for the Master port is accomplished by asserting RTS (Request to Send) if the
Sub-Port is configured as a DCE, DCD (Data Carrier Detect) if the Sub-Port is configured as
a DTE or Data Transitions from the attached Sub-Channel devices in either configuration. The
active interface lead, RTS or DCD, as well as selection of contention mode,
or

“Interface Lead”

activation, can be selected on an individual basis for each Sub-Channel.

“Data Transitions”

Once a Sub-Channel asserts an active control signal the control signal will be passed through
to the Master Port, depending on DTE / DCE configuration of the Sub-Channel and Master
Port. This control will be passed without delays. If the Master Port is configured as a DTE the
signal will be passed as RTS. The CTS returned to the Master will have an optional delay
added before the signal is returned to the Sub-Channel port.

Port Enable / Disable, front panel switches must be pushed in (GREEN indication) for a Sub­Channel to access the Master Port regardless of the mode of operation selected.

Channel Tail Circuits

A buffer is built into the unit for tail circuit (DCE to DCE) applications. An 8 bit centered ring
buffer is used to correct the clock phasing errors generated between the Modem on the
Master Port and the Sub-Channel port for the data transferred from the Sub-Channel to the
Master Port. If the unit is operated in an asynchronous environment the buffer must be
bypassed. This is accomplished by moving the SYNC/ASYNC switch to ASYNC.

1-3

OPERATION

INSTALLATION AND OPERATIONS MANUAL

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PATTON ELECTRONICS CO.

3040/V35

Interface Connections

All connections are made via industry standard CCITT V.35 (MR-34) female connectors
located on the rear of the unit. The Following interface leads are implemented, Chassis (A),
TD (P,S), RD (R,T), RTS (C), CTS (D), DSR (E), Sig Gnd(B), DCD (F), TT (Y,AA), RT (V,X),
DTR (H), ETT (U,W).

In addition the master port can be accessed via an DB-25 with the following pinout, Chassis
(1), TD (24,11), RD (23,22), RTS (4), CTS (5), DSR (6), Sig Gnd(7), DCD (8), TT (14,1), RT
(16,3), DTR (20), ETT (15,2).

Front Panel LEDs

Front panel LEDs are provided to indicate power is applied, RD and TD activity from the
Master Port, Sub-Channel activity of each individual Port, Anti-Stream condition of each Sub­Channel and an indication of clock Fallback condition.

Channel Enable / Disable Switches

Front panel switches allow operator intervention to remove an individual Sub-Channel from
accessing the Master Port. Positive latching type switches are provided for each Sub­Channel port for isolating or removing a streaming terminal. The Sub-Channel is activated by
pushing the switch until it is in the “
disable a Sub-Channel push the switch until it locks in the “

ININ

IN” position. The switch will indicate GREEN in color. To

ININ

OUTOUT

OUT” position, the switch will

OUTOUT

indicate BLACK in color. Disabling a Sub-Channel with the front panel does not prevent the
Sub-Channel from receiving data from the Master Port only from sending data to the Master
Port.

Power Supply

A linear power supply is located internally, an external 110/220VAC switch is located on the
rear of the unit. If chassis ground and signal ground need to be tied together this can also be
accomplished by switch selection. The unit is Rackmountable for 19" cabinets or optional 23"
cabinets, by using the provided Rackmount Kit. Safety approvals granted are UL and CSA as
well as emission approval for FCC Class A.

OPERATION

1-4

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3040/V35

INSTALLATION AND OPERATIONS MANUAL

139001UA

Caution, Disconnect the POWER Before Removing The Cover
Vorsicht, Befor Deckung Abnehmen Mach Strom Zu.

CHAPTER 2 - SETUP AND INSTALLATION

Power Connection

Before connecting the 3040/V35 (CTS MD-V.35/TCB) to a AC power source the top cover
must be installed and secured with the supplied #8-32 screws. The unit is supplied with a 110/
220VAC voltage switch, turn the switch with
a coin or screw driver to the appropriate
voltage for your country. EXAMPLE: In
the United States of America; set to
110VAC. The unit is supplied with a
IEC power connector next to the
voltage select switch, plug the power
cord into the connector until it is firmly
seated. You may now connect the
power cord into your AC outlet.

WARNING: FOR CONTINUED PROTECTION
AGAINST RISK OF FIRE, REPLACE ONLY
WITH SAME TYPE AND RATING FUSE.

PORT 4 MASTER DTE/ DCE

IEC Power Connector

110 / 220VA Switch

Fuse Drawer

220

110

Factory Configuration Switch Settings

The 3040/V35 (CTS MD-V.35/TCB) is configured prior to shipment with the switches set to the
following default positions:

Switch 15 - 1,2,3, 4 and 8 to

OFFOFF

OFF, 5, 6 and 7 to

OFFOFF

ONON

ON.

ONON

No Data Time Out = 2048 bits
Internal Baud Rate = 56000
Chassis Ground not connected to Signal Ground

Switch 16 - All to

ONON

ON.

ONON

CTS Delay = No Delay
Sync Mode
Contention Mode = Priority
Fallback Clock = Disabled
Fallback Clock Mode = Data Transitions
Fallback Clock Source = Internal Baud Rate Generator

Switch 17 - All to

ONON

ON.

ONON

TX Clock Source = Master pin 15
Sub-Channel Activity Indicated by Interface Control (RTS/DCD)

2-1

SETUP & INSTALLATION

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PATTON ELECTRONICS CO.

3040/V35

INSTALLATION AND OPERATIONS MANUAL

Switch 18 - 1, 2, 3, 7 and 8 to

OFFOFF

OFF, 4, 5 and 6 to

OFFOFF

ONON

ON

ONON

Anti-Stream timer = 2 M bits
Anti-Stream = Disabled
Broadcast Data to Sub-Channels
RX Clock Source = Master

JP4 Thru JP7

OpenOpen

Open

OpenOpen

HS Option Not Enabled
JP8 thru JP12 to

OpenOpen

Open

OpenOpen

DTR / DSR Not Forced
JP1 Thru JP3 to

InstalledInstalled

Installed

InstalledInstalled

Factory Test Jumpers

If the system application requires one or more of the default settings to be changed, it will be
necessary to remove the top cover of the enclosure to access and change the DIP switches
located on the printed circuit board.

Disassembly

Remove the top cover by removing the phillips head screws located on the left and right sides
of the 3040/V35 (CTS MD-V.35/TCB). DTE/DCE switches SW5 through SW14, baud rate
Jumpers JP4 through JP7, interface Jumpers JP8 through JP12 and configuration switches
SW15 through SW18 are located on the PCB as indicated on the strapping guide in the
Appendix of this manual. After the switch selection activity is completed,

cover BEFORE connecting to a AC power source

.

re-install the top

Installation

Select an appropriate location accessible to and within six feet of an AC power outlet, the
outlet must have a ground pin receptacle for product warranty. The DCE-to-DTE cabling
between each attached device and the 3040/V35 (CTS MD-V.35/TCB) should be “Straight
Through”, shielded and terminated with male connectors. Sub-Channels are marked PORT 1
through PORT 4, the Master Port is marked, MASTER DCE/DTE. If any terminal has a priority
service mode, ensure it is connected to the port connector designated “PORT 1” on the rear
panel of the 3040/V35 (CTS MD-V.35/TCB). Secure other terminals or Modems to be
serviced to the remaining “PORT” connectors. Connect the MODEM or TERMINAL to the
connector designated “MASTER DTE/DCE”.

SETUP & INSTALLATION

2-2

PATTON ELECTRONICS CO.

3040/V35

INSTALLATION AND OPERATIONS MANUAL

Equipment Grounding (SW15-1)

Switch SW15-1 provides for grounding interconnection in those systems requiring a
connection between (Frame Ground) and (Signal Ground). Connect ONLY if required.

RTS To CTS Delay (SW16-1,2,3)

If a CTS delay is desired, set SW16-1, 2 and 3 to the required value as indicated below.

SW16-1 SW16-2 SW16-3 Time

ON ON ON No Delay

OFF ON ON 1mS

ON OFF ON 2mS

OFF OFF ON 4mS

ON ON OFF 8mS

OFF ON OFF 16mS

ON OFF OFF 32mS

OFF OFF OFF 64mS

139001UA

Anti-Streaming (SW18-1,2,3)

The maximum data block size is user selectable via switch SW18- 1, 2 and 3. As shown
below eight block sizes are provided to the user. To disable anti-streaming set SW18-8 to the
OFF position. The maximum block size is normally defined at the time of installation.

SW18-1 SW18-2 SW18-3 CLOCKS

ON ON ON 1024

OFF ON ON 2048

ON OFF ON 4096

OFF OFF ON 16 K

ON ON OFF 64 K

OFF ON OFF 256 K

ON OFF OFF 1 MEG

OFF OFF OFF 2 MEG

2-3

SETUP & INSTALLATION

PATTON ELECTRONICS CO.

139001UA

Receive Data Mode (SW18-7)

3040/V35

INSTALLATION AND OPERATIONS MANUAL

Setting switch SW18-7 to

ONON

ON sets the 3040/V35 (CTS MD-V.35/TCB) into the Gated Mode.

ONON

Only the Sub-Channel that is currently active will receive the data from the master port. Setting
position 7 to

OFF OFF

OFF enables the Broadcast mode. Receive Data from the Master Port is sent to

OFF OFF

all Sub-Channels.

Control Turn-Off Delay in “DATA” Switching Mode (SW15-3,4)

When configured to switch on DATA, switch SW15-3 and 4 set the Sub-Channel release time
in clocks. The value selected is the number of clocks at the current baud rate that must occur
without any data transitions on the Sub-Channel to indicate that Sub-Channel has completed
its transmission and the 3040/V35 (CTS MD-V.35/TCB) can resume servicing the other Sub­Channels. The following table should be used to set this time period.

SW15-3 SW15-4 CLOCKS

ON ON 16

ON OFF 64

OFF ON 256

OFF OFF 2048

Switch on Data / Control (SW17-5,6,7,8)

Each sub-channel is independently selectable for switch on data or switch on an active
interface control lead. Set SW17 pos 5 to
Set pos 5 to

ONON

ON if switch on interface control lead is desired. Position 6 thru 8 are associated

ONON

OFFOFF

OFF if sub-channel 1 switch on Data is required.

OFFOFF

with sub-channels 2 thru 4.

Internal Baud Rates (SW15-5,6,7,8)

Switch SW15-5, 6, 7 and 8 select the master clock rate when Internal Clock Source is selected
on TX Clock Source or RX Clock Source. In addition the Fallback clock rate is also selected
with this option. When Fallback clocking is required, the RX Clock Source and TX Clock
Source should not be set to INTERNAL. SW15-5, 6, 7 and 8 selects the clock rate of the
Fallback Clock when Internal Clock Fallback is selected. The following table shows the
available rates.

SETUP & INSTALLATION

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PATTON ELECTRONICS CO.

SW15-5 SW15-6 SW15-7 SW15-8 Rate

ON ON ON ON HS Opt.

OFF ON ON ON 768K

ON OFF ON ON 384K

OFF OFF ON ON 192K

ON ON OFF ON 128K

OFF ON OFF ON 72K

ON OFF OFF ON 64K

OFF OFF OFF ON 57.6K

ON ON ON OFF 56K

OFF ON ON OFF 48K

ON OFF ON OFF 38.4K

OFF OFF ON OFF 28.8K

ON ON OFF OFF 19.2K

OFF ON OFF OFF 14.4K

ON OFF OFF OFF 9.6K

OFF OFF OFF OFF 4.8K

3040/V35

INSTALLATION AND OPERATIONS MANUAL

139001UA

For the High Speed Option set SW15-5, 6, 7 and 8 to ON and select the desired rate by
installing JP4 for 2048K, JP5 for 1024K, JP6 for 512K or JP7 for 256K. Only one of the four
jumpers should be installed of proper operation.

Fallback Clock Enable (SW16-7)

If Clock Fallback is required when the primary clock fails, set switch SW16-7 to
Fallback is not required set SW16-7 to

ONON

ON. The Fallback clock rate is selected with the

ONON

OFFOFF

OFF. If

OFFOFF

internal baud rate option. When the Fallback is activated the FBC LED will illuminate.

Fallback Clocking From Sub-Channel 4 (SW16-8)

To use the Sub-Channel 4 RX Clock as the Fallback clock set SW16-8 to
Internal Baud Rate Clock as the Fallback clock set SW16-8 to

ONON

ON.

ONON

OFFOFF

OFF. To use the

OFFOFF

Fallback Mode Selection (SW16-6)

If Fallback is required, two modes are available via switch SW16-6. To Fallback when the
transitions from the primary clock source stop, set SW16-6 to
Sub-Channel 1 becomes inactive, set SW16-6 to

OFFOFF

OFF.

OFFOFF

ONON

ON. To Fallback when DCD on

ONON

2-5

SETUP & INSTALLATION

INSTALLATION AND OPERATIONS MANUAL

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PATTON ELECTRONICS CO.

3040/V35

NOTE: Both TX and RX Clock Source Select MUST Be Set !!!!

TX Clock Source Selection (SW17-1,2,3)

TX Clock Source is selected by switch SW17-1, 2 and 3. The following table indicates the
source options provided by the 3040/V35 (CTS MD-V.35/TCB). When using the unit in Async
Mode, the INTERNAL clock source must be selected.

SW17-1 SW17-2 SW17-3 Source

ON ON ON Master

OFF ON ON Port 1

ON OFF ON Port 2

OFF OFF ON Port 3

ON ON OFF Port 4

OFF ON OFF unused

ON OFF OFF unused

OFF OFF OFF Internal

Internal Must Be Selected For
Async Operation

TX Clock Pin Selection (SW17-4)

The primary transmit clock can be derived from either pins Y,AA or pins U,W. If pins Y,AA are
to be the source for primary TX Clock, set SW17-4 to
primary TX & RX Clock, set SW17-4 to

OFFOFF

OFF.

OFFOFF

ONON

ON. If pins U,W are to be the source for

ONON

RX Clock Source Selection (SW18-4,5,6)

RX Clock Source is selected by SW18-4, 5 and 6. The following table indicates the source
options provided by the 3040/V35 (CTS MD-V.35/TCB). If the TXC source is pins U,W, both
RXC and TXC will be sourced from pins U,W. When the unit is used in an Async network
select INTERNAL as the source of the RX Clock.

SW18-4 SW18-5 SW18-6 Source

ON ON ON Master

OFF ON ON Port 1

ON OFF ON Port 2

OFF OFF ON Port 3

ON ON OFF Port 4

OFF ON OFF unused

ON OFF OFF unused

OFF OFF OFF Internal

SETUP & INSTALLATION

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PATTON ELECTRONICS CO.

Tail Circuit Buffers (SW16-4)

The 3040/V35 (CTS MD-V.35/TCB) has a Tail Circuit Buffer that is automatically selected
when a Sub-Channel is set as a DTE. The buffer will provide clock synchronization of the data
from the Sub-Channel to the Master Port for Tail Circuit operations. The buffer is de-activated
when the Sub-Channel is configured as a DCE. When operating in an asynchronous
environment the Buffer must be bypassed. To bypass the buffer in a synchronous or
asynchronous application, set switch SW16-4 to
synchronous environment set SW16-4 to
the 3040/V35 (CTS MD-V.35/TCB), the modem connected to the Sub-Channel, should be set
to External Transmit Clocking. The modem at the remote end of the connection should be set
to RX-TX Clocking or Slaved TX Clock. This will insure the same clock is present throughout
the network and clock slippage will not occur.

Port DCE/DTE Selection (SW5 thru SW14)

3040/V35

OFFOFF

OFF (ASYNC). For normal operation in a

OFFOFF

ONON

ON (SYNC). When using a tail circuit modem with

ONON

INSTALLATION AND OPERATIONS MANUAL

139001UA

Slide switches SW5 through SW14 are used to configure DTE/DCE for each port. Slide Both
switches associated with a port to the same position.
Device) to the PORT, then the port should be configured as a DTE interface. Slide both
switches to the DTE position toward the interface connector. If connecting a terminal (DTE) to
the Sub-Channel, the port should be configured as a DCE. Slide both switched to the DCE
position away from the interface connector.

interface that is to be connected to it

.

The port is always configured opposite to the

Example:

If connecting a modem (DCE

DCE

J8 thru JP12

DCE

Forced DSR/DTR

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PATTON ELECTRONICS CO.

3040/V35

DTR / DSR Forced Active (JP8 thru JP12)

DTR is tied to DSR on each of the Sub-Channel ports. If the device connected does not
supply a DTR but requires DSR (DTE) or does not supply DSR but requires DTR (DCE),
installing the forced DTR/DSR jumper (JP8-JP12) for the appropriate Sub-Channel will solve
this problem. The line is forced to +8V via an 820W resistor, providing isolation to any driver
that might be on the interface.

Channel Jumper Channel Jumper

Master JP8 3 JP11

1 JP9 4 JP12

2 JP10

FACTORY Test Jumpers (JP1, JP2 and JP3)

The three test jumpers JP1, 2 and 3, must be installed for the unit to properly function. These
jumpers are used in the manufacture and test of the product prior to shipment.

SETUP & INSTALLATION

2-8

APPENDIX

Leased

or

Dial Line

V.35 DSU/CSU

PATTON ELECTRONICS CO. INSTALLATION AND OPERATIONS MANUAL

3040/V35

V.35 V.35

139001UA

V.35

RT-V,X

Data

Internal

TX Clo ckin g

TT-Y,AA

3040/V35

Slave

TX Clo ckin g

3040/V35

V.35 DSU/CSU

Typical Application

Data

RT-V,X

ETT-U,W

TT-Y,AA

Data

Buffer

TX Clo ckin g

Data

RT-V,X

Data

External

Leased

Dial Line

ETT-U,W

or

Slave

TX Clo ckin g

Data

TT-Y,AA

ETT-U,V

RT-V,X

Termin al

Data

Typical Tail Circuit Configuration

A-1

APPENDIX

139001UA

g

PATTON ELECTRONICS CO. INSTALLATION AND OPERATIONS MANUAL

3040/V35

SG

B

CTS

D

FG

A

RTSHDTR

C

CD

F

J

DSR

E

RD(A)VRT(A)

L R

N T

TD(A)

K

P

Z DD JJ

RD(B)

TD(B)WETT(B)AATT(B)

RT(B)

X

ETT(A)YTT(A)

U

BB FF LL

S

M-34 Interface Pins Supported

NN

CC HH MM

EE KKM

DB-25 V .3 5

Transmit Clock(A) (from DCE)

External Transmit Clock(A) (from DTE)

Receive Cloc k(A) (f ro m DCE)

Data Terminal Ready (from DTE)

Receive Data(B) (from DCE)
Receive Data(A) (from DCE)

Transmit Data(A) (from DTE)

DB-25 Interface Pins Supported

14
15

16

17

18

19

20

21
22
23
24
25

Transmit Clock(B) (from DCE)

1

External Transmit Clock(B) (from DTE)

2

Receive Cloc k(B) (f ro m DCE)

3

Request to Send (from DTE)

4

Clear To Send (from DCE)

5

Data Set Ready (from DCE)

6

Si

7

8

nal Ground (common)

Data Carrier Dete ct (from DCE)

9
10

Transmit Data(B) (from DTE)

11
12
13

APPENDIX

A-2

PATTON ELECTRONICS CO. INSTALLATION AND OPERATIONS MANUAL

3040/V35

139001UA

Master Port is a DTE

Pins R,T RD

Pins P,S TD

Pin C RTS

Pin D CTS

Pin E DSR

Pin F DCD

Pin H DTR

Pins Y,AA TT

Pins V,X RT

Pins U,W ETT

Master DTE / Sub-Channel DTE Interface Flow Diagram

Master TX Clock

Selection Logic

Mast er RX Clock

Selection Logic

Buffer

Channel Port is a DTE

Pins P,S TD

Pins R,T RD

Clk InClk Out

Switch Control

+8v

Pin C RTS

Pin D CTS

Pin E DSR

Pin F DCD

Pin H DTR

Pins Y,AA TT

Pins V,X RT

Pins U,W ETT

Master Port is a DTE

Pins R,T RD

Pins P,S TD

Pin C RTS

Pin D CTS

Pin E DSR

Pin F DCD

Pin H DTR

Pins Y,AA TT

Pins V,X RT

Pins U,W ETT

Master DTE / Sub-Channel DCE Interface Flow Diagram

Master TX Clock

Selection Logic

Mast er RX Clock

Selection Logic

A-3

Channel Port is a DCE

Pins R,T RD

Pins P,S TD

Switch Control

Pin C RTS

Pin D CTS

Pin E DSR

Pin F DCD

Pin H DTR

Pins Y,AA TT

Pins V,X RT

Pins U,W ETT

APPENDIX

139001UA

PATTON ELECTRONICS CO. INSTALLATION AND OPERATIONS MANUAL

3040/V35

Master Port is a DCE

Pins P,S TD

Pins R,T RD

Pin C RTS

Pin D CTS

Pin E DSR

Pin F DCD

Pin H DTR

Pins Y,AA TT

Pins V,X RT

Pins U,W ETT

Master DCE / Sub-Channel DCE Interface Flow Diagram

+8v

Master TX Clock

Selection Logic

Mast er RX Clock

Selection Logic

Channel Port is a DCE

Pins R,T RD

Switch Control

+8v

Pins P,S TD

Pin C RTS

Pin D CTS

Pin E DSR

Pin F DCD

Pin H DTR

Pins Y,AA TT

Pins V,X RT

Pins U,W ETT

APPENDIX

Master Port is a DCE

Pins P,S TD

Pins R,T RD

Pin C RTS

Pin D CTS

Pin E DSR

Pin F DCD

Pin H DTR

Pins Y,AA TT

Pins V,X RT

Pins U,W ETT

Master DCE / Sub-Channel DTE Interface Flow Diagram

+8v

Master TX Clock

Selection Logic

Mast er RX Clock

Selection Logic

Buffer

A-4

Channel Port is a DTE

Pins P,S TD

Pins R,T RD

Clk InClk Out

Switch Control

+8v

Pin C RTS

Pin D CTS

Pin E DSR

Pin F DCD

Pin H DTR

Pins Y,AA TT

Pins V,X RT

Pins U,W ETT

PATTON ELECTRONICS CO. INSTALLATION AND OPERATIONS MANUAL

3040/V35

TECHNICAL SPECIFICATIONS

139001UA

Applications

Multiple V.35 Sync or Async DCE or DTE devices
sharing one V.35 DCE or DTE link

Capacity

One to Four V.35 Sync or Async DTE or DCE
devices One V.35 DCE or DTE Master Channel

Data Format

Data transparent at all data rates

Data Rates

Up to 2.048Mbps

Timing

Internal: ...... DIP switch selectable

Normal: ...... From Modem

External:...... Clock provided on any Sub-Channel

Anti-streaming

Sub-Channel Interface

CCITT V.35 female connectors (MR-34)

Master Interface

CCITT V.35 female connector (MR-34 & DB-25)

Front Panel

Indicators: ..... Power, Send Data, Receive Data,

Clock Fallback, Sub-Channel Active,
Sub-Channel Stream

Switches: ...... Enable/Disable each Sub-Channel

Power Source

100-120/200-240 Vac, 50 to 60 Hz, 0.16/0.08
A, Switch Selectable

Environmental

Operating Temp: ....... 32° to 122°F (0° to 50°C)

Relative Humidity: ..... 5 to 90% non-condensing

Altitude: .................. 0 to 10,000 feet

Automatic:Selectable timeout intervals or disable

Terminal Service Modes

Scanning Mode: ...... Channels are continuously

scanned for activity on a
sequential basis.

Priority Mode: ........ Channels are simultaniously

monitored channel one has
highest access

Dimensions

Height: ....... 1.75 inches (4.44 cm)

Width: ....... 17.00 inches (43.18 cm)

Length: ....... 11.00 inches (18.93 cm)

Weight

4.5 lbs (2.1 Kg)

A-5

APPENDIX

APPENDIX

139001UA

J2 J3 J5J4 J6

J1

A-6

No Data Timer - SW15

4

Count

3

ON

ON

OFF
OFF

3

ON
ON
ON

ON
OFF
OFF
OFF
OFF

ON

16
64
256
2048

Delay

No Delay
1 mS
2 mS
4 mS
8 mS
16 m S
32 m S
64 m S

ON
OFF
OFF

CTS Delay Timer - SW 16

1

2

ON

ON

OFF

ON

ON

OFF

OFF

OFF

ON

ON

OFF

ON

ON

OFF

OFF

OFF

JP3

JP2

JP1

Factory Test Jumpers

PN 13 9010 B

V.35 on DB-25

12345678

Sig nal to Chassis Ground
Unused

No Data Timeout

Baud Rate Selection

ONOFF

HS Option

256Kbps

JP7

512Kbps

JP6

1024Kbps

JP5

2048Kbps

JP4

Fall

Back

ClockingPower SD RD

SW5 SW6 SW8SW7 SW11 SW12SW10SW9 SW13 SW14

DTE
DCE

Bau d Rate Select - SW15

5

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON.

OFF

ON.

OFF

ON.

OFF

ON

ON
OFF
OFF

ON

ON.
OFF
OFF

ON

ON.
OFF
OFF

ON

ON.
OFF
OFF

7

6

ON
ON
ON

ON
OFF
OFF
OFF
OFF

ON

ON

ON

ON
OFF
OFF
OFF
OFF

8

ON
ON
ON
ON

ON
ON.
ON.

ON

OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF

JP8 thru JP12 Installed forces DTR/DSR for the channel

JP8 JP9 JP10 JP11 JP12

SW18SW17SW15 SW16

12345678

CTS Delay

Sync=ON /Async=OFF
Pri ority=ON /Scan = OFF
FB on CLK=ON /FB on DCD=OFF
FB Dis able=ON /FB Enable=OFF
Int Clk FB= ON /Ch4 FB =OFF

ONOFF

Rate

HS Option
768K
384K
192K
128K
72K
64K

57.6K
56K
48K

38.4K

28.8K

19.2K

14.4K

9.6K

4.8K

Active Anti-Stream

T X Clock Source - SW17

1

2

ON

ON
OFF
OFF

ON

ON
OFF
OFF

3

ON
ON
ON

ON
OFF
OFF
OFF
OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

12345678

Tx Cl oc k So urce

TXC pinsY,AA=ON / pinsU,W=OFF
Ch1 R TS=ON /D ata=O FF
Ch2 R TS=ON /D ata=O FF
Ch3 R TS=ON /D ata=O FF
Ch4 R TS=ON /D ata=O FF

ONOFF

Source

Master
Chan1
Chan2
Chan3
Chan4
Unused
Unused
Internal

RX Clock Source - SW18

ON

OFF

ON

OFF

ON

OFF

ON

OFF

Port Enable(Green) / Disable(Black)

12345678

Anti-Stream Time r

Rx Cl ock So ur ce

Rc vr Gate d= ON /Broad cast=OF F
Anti-St ream Enabled =ON

ONOFF

Anti-Stream Timer - SW18

1

2

4

5

6

ON

ON
OFF
OFF

ON

ON
OFF
OFF

ON
ON
ON

ON
OFF
OFF
OFF
OFF

Source

Master
Chan1
Chan2
Chan3
Chan4
Unused
Unused
Internal

Port 1

Port 2

ON

OFF

ON

OFF

ON

OFF

ON

OFF

Port 3

Port 4

ON

ON
OFF
OFF

ON

ON
OFF
OFF

3

ON
ON
ON

ON
OFF
OFF
OFF
OFF

1234 1234

Count

1024
2048
4096
16K
64K
256K
1M
2M

PATTON ELECTRONICS CO. INSTALLATION AND OPERATIONS MANUAL

3040/V35

B

7622 Rickenbacker Drive
Gaithersburg, MD 20879

Sales: 301 975-1000 Support: 301 975-1007
Web Address: www.patton.com