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USER
MANUAL
MODEL 3042
(CTS TDM-V.24)
Time Division
Multiplexor, RS-232
Part #: 07M3042-A
Doc #: 119001UA
Revised 3/26/01
SALES OFFICE
(301) 975-1000
TECHNICAL SUPPORT
(301) 975-1007
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1.0 WARRANTY INFORMATION
Thank you for your purchase of this Patton Electronics product. This
product has been thoroughly inspected and tested and is warranted for
One Year parts and labor. If any questions or problems arise during
installation or use of this product, please do not hesitate to contact Patton Electronics Technical Services at (301) 975-1007.
1.1 WARRANTY STATEMENT
Patton Electronics
warrants all Model 3042 components to be free from
defects, and will—at our option—repair or replace the product should it
fail within one year from the first date of shipment.
This warranty is limited to defects in w orkmanship or materials, and does
not cover customer damage, abuse or unauthorized modification. This
product contains no user serviceable parts; therefore the user shall not
attempt to modify the unit in any way. If this product fails or does not perform as warranted, your sole recourse shall be repair or replacement as
described above. Under no condition shall
Patton Electronics
be liable
for any damages incurred by the use of this product. These damages
include, but are not limited to, the following: lost profits, lost savings and
incidental or consequential damages arising from the use of or inability to
use this product.
Patton Electronics
specifically disclaims all other warranties, expressed or implied, and the installation or use of this product
shall be deemed an acceptance of these terms by the user. In the event
the user detects intermittent or continuous product malfunction due to
nearby high power transmitting radio frequency equipment, the user is
strongly advised to use only data cables with an external outer shield
bonded to a metal or metalized connector.
1.2 RADIO AND TV INTERFERENCE
The Model 3042 generates and uses 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 Model 3042 has been tested and f ound to comply with the
limits for a Class A computing device 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 Model 3042 does cause interference to r adio
or television reception, which can be determined by disconnecting the
RS-232 interface, 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).
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1.3 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 Service at
(301) 975-1007
accepted
.
.
Packages received without an RMA number will not be
Patton Electronics’ technical staff is also av ailab le to ans wer any questions
that might arise concerning the installation or use of your Model 3042.
Technical Service hours:
8 A.M. to 5 P.M. EST, Monday through Friday
.
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2.0 OPERATION
The Patton 3042 (CTS TDM-V.24) is a Full Duplex, RS-232, Two Channel,
Time Division Multiplexor with an independent s witch selectable V.14/V.22
compliant Asynchronous to Synchronous Interface adapter on sub-channel 1. The composite channel is designed to interface directly with a high
speed synchronous MODEM via a straight through cable. The unit operates by sequentially selecting a bit of data from each sub-channel then
multiplexing it onto the composite channel. Each sub-channel will operate
at 1/2 of the composite channel rate. Standard DB-25 female connectors
are provided on all sub-channels as well as the composite channel.
Power is provided by an external transformer connected through J1
(Power) on the rear of the unit. This external power transformer has UL
and CSA approvals.
One LED indicator on the front of the unit indicates power is applied to
the unit and should be on at all times. The other indication on the front
labeled SYNC indicates the two 3042 (CTS TDM-V.24) units are in sysnc
with each other and data transmission is possible.
Three DB-25 Female Connectors are provided on the rear panel for connection to a MODEM on the composite port (J2) and two Terminals.
Channel 1 (J3) can be optioned for synchronous or asynchronous operation. Channel 2 (J4) can be operated only as a synchronous channel.
Channel 1 must be optioned the same on both ends of the circuit for the
multiplexor to function properly.
Sync or As y nc
Terminals
Sync
Async
Host Processor
Modem Modem
3042 3042
Figure 1.
Typical Application
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3.0 SETUP AND INSTALLATION
3.1 INSTALLATION
Set switches to match the required configurations based on the diagr ams
below. The cabling between each device and the 3042 (CTS TDM-V.24)
must be terminated with male connectors. Character Length and Stop Bit
reduction only apply to channel 1 when it is selected for asynchronous
operation.
3.2 CHARACTER LENGTH
SW1 position 1 and 2 selects the character length. The character length
includes the start, stop and any parity bits. 10 bit length is 1 start bit, 8
data bits and 1 stop bit. The chart on the previous page outlines all the
available character bit lenghts available.
3.3 STOP BIT REDUCTION
SW1 position 3 selects the percentage of stop bit reduction to occur when
the sync rate is faster than the async rate. Setting SW1 position 3 to ON
ON ON ON ON will select 25% stop bit reduction. Setting SW1 position 3
to OFF OFF OFF OFF OFF will select 12.5% stop bit reduction.
3.4 CHANNEL 1 SYNC / ASYNC
SW1 position 5 selects channel one as a sync channel or async channel.
This selection must be the same on both ends of the circuit for the units to
operate correctly. Setting SW1 position 5 to ON ON ON ON ON will select
Asynchronous operation on channel 1. Setting SW1 position 5 to OFF
OFF OFF OFF OFF will select Synchronous operation on channel 1.
3.5 EQUIPMENT GROUNDING
SW1, position 6 provides for grounding interconnection in those systems
requiring a connection between Pin # 1 (Frame Ground) and Pin # 7
(Signal Ground).
3.6 FACTORY STRAPS
SW1 position 4 is used for f actory test and must be in the off position for
proper operation of the unit. In addidtion the 3 jumpers must be installed
for proper operation of the unit.
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APPENDIX A
TECHNICAL SPECIFICATIONS
A.1 APPLICATIONS
RS-232 Sync or Async 2 Sub-Channel Multiplexor
A.2 CAPACITY
Two Sync or One Sync and One Async RS-232 Terminals
One Sync RS-232 MODEM
A.3 DATA FORMAT
Data Coding: Synchronous or Asynchronous
A.4 DATA RATES
Async 600bps to 19,200bps or Sync up to 19,200 with 38,400 bps composite
A.5 DATA INTERFACE
EIA RS-232-C
A.6 RS-232 PHYSICAL INTERFACE
Three Female DB-25 Connectors
A.7 ENCLOSURE
Aluminum
A.8 POWER REQUIREMENTS
Wall Mount Transformer
A.9 APPROVALS
FCC Part 15 Class A, UL/CSA
A.10 ENVIRONMENTAL
Operating Temp: 32 to 122°F (0 to 50°C)
Relative Humidity: Up to 90%, non-condensing
Altitude: 0 to 10,000 feet
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A.11 DIMENSIONS
Height: 2.00 inches (5.08 cm)
Width: 8.30 inches (21.08 cm)
Length: 6.10 inches (15.49 cm)
A.12 WEIGHT
2.25 lbs (1.02 Kg)
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APPENDIX B
JUMPER AND SWITCH SETTINGS
Power
Connector
J1
JP3
JP2
JP1
Power Sync
Composite
(Modem)
J2
25% Stop Bit Reduction = ON / 12.5% Stop Bit Reduction = OFF
Chan 1 Async = ON / Chan 1 Sync = OFF
Signal Ground Connected to Chassis Ground = ON
Channel 1
(Ter minal)
J3
Facto ry Test,
Channel 2
(Ter minal)
Character Length
MUST BE SET TO “OFF
Factory
Test Jumpers
MUST BE INSTALLED
Character Length - SW 1
1
OFF
ON
OFF
ON
2
OFF
OFF
ON
ON
Length
10 Bits
11 Bits
8 Bits
9 Bits
J4
ON OFF
123456
”
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