Fully Compatible TIA-232 / 7 Channel RX/TX Pair

Model #: TD-1280 | TD-1281

TD-1280-1281_500.png

Overview

The TD-1280 and TD-1281 pair together to form a powerful balanced serial data transport solution. The DB-25 connectors are pinned out to directly support a TIA-232 serial link. However due to the transparency and flexibility of the design, the TD-1280/81 can be used as 3x2 independent 1 Mbps TIA-232 channels and 5x5 independent 120 Kbps TIA-232 channels.

This incredible versatility can solve a myriad of serial data communications problems. Your once limited serial links can not only be consolidated but extended to over 20 Km on a single fiber pair. SCADA (supervisory control and data acquisition), Telecommunications, Facility Automation and Control can all benefit from the TD-1280/81.

For more advanced systems, a ‘Regeneration’ switch on the TD-1281 allows users to toggle between synchronous applications that require Send Timing (ST) and asynchronous or synchronous applications that require Terminal Timing (TT).

How do we get so many channels?

By using a technology unique to FiberPlex products called ‘transparency’, we are able to use all the clock, data and control channels of the standard EIA-530 interface completely independently of one another. This provides the ability to have (2) bi-directional 1 Mbps TIA-232 serial with (1) unidirectional 1 Mbps TIA-232 and (5) bi-directional 120 Kbps TIA-232, or even independently as (3) 1 Mbps TIA-232 in one direction and (2) in the other [3x2] and (5) 120 Kbps TIA-232 in one direction and (5) in the other [5x5]. The table below shows how these channels are pinned out.

PINOUTS
Pin TD-1281 (To DCE) Direction TD-1280 (To DTE) Direction Individual TX/RX channels TIA-232
Function
1     Chassis Ground Chassis Ground
2 Out In 1 Mbps TIA-232 TX Send Data (SD)
3 In Out RX Receive Data (RD)
4 Out In 120 Kbps TIA-232 TX Request To Send (RTS)
5 In Out RX Clear To Send (CTS)
6 In Out RX Data Set Ready (DSR)
7     Signal Ground Signal Ground
8 In Out 120 Kbps TIA-232 RX Receiver Ready (RR)
9        
10        
11        
12        
13        
14 Out In 120 Kbps TIA-232 TX Secondary Send Data (S-SD)
15 In Out  1Mbps TIA-232 RX Send Timing (ST)
16        
17 In Out 1 Mbps TIA-232 RX Receive Timing (RT)
18 Out In 120 Kbps TIA-232 TX Local Loopback (LL)
19 Out In TX Secondary Request To Send (S-RTS)
20 Out In TX Terminal Ready (TR)
21        
22 In Out 120 Kbps TIA-232 RX Ring Indicator (RI)
23        
24 Out In 1 Mbps TIA-232 TX Terminal Timing (TT)
25 In Out 120 Kbps TIA-232 RX Test Mode (TM)
Data and clock signals (highlighted) have a maximum data rate of 1 Mbps. All other signals not highlighted are control signals with a maximum data rate of 120 Kbps.

Typical Applications

Secure commercial networks

SCADA

Features

  • Compatible with:
    • TIA-232 / V.28
    • MIL-STD-188-114A unbalanced type 3
    • MIL-STD-188C
    • FED STD 1020A
  • Can alternately be used for 3x2 high speed TIA-232 and 5x5 low speed TIA-232
  • TIA-232 channels support data rates from DC to 1 Mbps
  • Includes power adapter as well as a 3-position Phoenix™

Applications:

  • SCADA
  • Oil and Gas
  • Home / Facility Automation
  • Telecommunications
  • Industrial Controls

ELECTRICAL SPECIFICATIONS

 

 

Min

Typ

Max

Unit

Power Requirement

Voltage Range

7

9

32

V

Supply Current

-

550

-

mA

Data and Clock Signals

Data Rate

DC

-

1

Mbps

Sampling Jitter

0

-

4

%

Input Resistance

3

5

7

Input Voltage Range

-25

-

25

V

Output Voltage (100Ω load)

-

±5

-

V

Control Signals

Data Rate

DC

-

120

Kbps

Sampling Jitter

0

-

0.4

%

Input Load

3

5

7

Input Voltage Range

-25

-

25

V

Output Voltage (5 kΩ load)

-

±5

-

V

Environmental

Storage Temperature

-40

-

85

°C

Operating Temperature

0

-

50

°C

Interface Connector

TD-1281

DB-25 Male

TD-1280

DB-25 Female

OPTICAL SPECIFICATIONS

Order Suffix

Connector

Fiber Type

λ
(nm)

Transmitter Power (dBm)

Receiver Sensitivity (dBm)

Max Distance

Min

Max

L22

LC/PC

Multimode

1310

-15

-8

-24

2 km

T22

ST

-12

-6

-26

2 km

L5B

LC/PC

Singlemode

1310

-9

-3

-25

20 km

T5B

ST

-12

-6

-23

20 km

C

SFP Cage with no Optical Module Installed

External SFP Interface

Min

Typ

Max

Unit

Data Rate

-

270

-

Mbps

Recommended Jitter

-

-

40

Psec

Operating Voltage

3.2

3.3

3.4

VDC

Maximum Current

-

-

500

mA

Optical Modules

SFP MSA (SFF-8431, SFF-8432, SFF-8433) compliant slot, data rate 266 Mbps - 1.25 Gbps

PHYSICAL SPECIFICATIONS

Case Dimensions

Length

Width

Height

Weight

TD-1280 / TD-1281

4.5 in (114 mm)

2.75 in (70 mm)

1.66 in (42 mm)

0.4 lb (0.2 kg)

PDF Document Datasheet
PDF Document User Manual
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Standalone Operation
PSA-T913 Spare Wall Power Adapter for TD Series Modules, 9V @ 1.3A
TD-DINR DIN Rail Adapter
Rack Mounting
TDP 6 Position Front Connect Powered Rack for TD Series Modules
TDR-01-AC 6 Position Rear Connect Powered Rack for TD Series Modules
Stage / Truss Solutions
TTM 6 Position Truss Mount AC Powered Rack for TD Series Modules
Industrial Solutions
TNE-01 NEMA 4X Rated Powered Enclosure for 1 TD Series Module
TNE-03 NEMA 4X Rated Powered Enclosure for 3 TD Series Modules
TD-DINR DIN Rail Adapter

How to Buy

We support a variety of clients from multiple markets. To make the buying process the cleanest and most efficient we provide a number of ways to purchase our products.

See our How To Buy page to find the procurment method that works best for you and your business.