TCCOMM,Multi-Drop Fiber Optic Data Multiplexer w/Self-Healing Ring 4/8/12 ch, Telephone Extenders- Fiber optic modems- Gigabit switches- Singlemode to Multimode Converters- Emergency Phones- Oil Refinery Switches, Traffic Control Switches, Train Control Switches- Fiber Optic Telephone Extenders-Fiber Optic Telephone Extenders- Fiber Telephone Extenders
American
Tech Supply carries a complete line of TC Comm fiber optic modems, gigabit switches, singlemode to multimode converters, emergency phones, oil refinery switches, traffic control switches, train control switches, fiber optic telephone extenders ranging
from simple "quick talk" extenders to multi-line (24 channel) PBX line
extenders allowing you to use existing fiber optic cable to run your voice needs
over 2 fiber strands or install fiber optic cable one time and use fiber optics
for security proof voice, data, IP, video services on one media- fiber
Multi-Drop Fiber Optic Data Multiplexer w/Self-Healing Ring (4/8/12 ch.)
The TC2800 RS232/422/485 Multi-Drop Fiber Optic Multiplexer is designed for Ring & Self-Healing Ring topologies in SCADA, Transportation & Process Control networks.
Features
- Sophisticated Self-Healing Ring
- All Digital Design
- Hardened Temperature version exceeds NEMA & CALTRANS specs
- Protocol Transparent
- Separate Broadcast/Receive Channels
- RS-232, RS-422, RS-485 (2/4-wire)
- Multimode (850/1300nm) or Single Mode (1300/1550nm)
- Built-In Power Redundancy
- Optical Loop Integrity Test
- Local Dry Contact Alarm Relay
- Rackmount or Standalone
Applications
The TC2800 is frequently used to interconnect Remote Terminal Units (RTUs) or Programmable Logic Controllers (PLCs) in Utility substation SCADA Networks that require multiple channels. It is also used for similar connectivity applications in Traffic Control, Industrial Process Control and Security System Networks.
Self-Healing Ring
A Self-Healing Ring (also called Dual Ring or Counter-Rotating Ring) topology provides maximum fault tolerance and network flexibility.
It consists of two data paths, Ring A and Ring B, with each data path running in an opposite direction to the other.
Under normal operation only the primary data path (Ring A) is used. When there is fault (cable or failed device), the data path will turn around before it reaches the fault of failed unit and use the secondary data path to complete the link. In this manner, the data path to the remainder of the units will remain intact.
Self-Healing Ring w/ Multiple Masters
The TC2800's most reliable configuration is the
"multiple master" Self- Healing Ring.
This innovative configuration maximizes the
reliability of a single Master because it can recover
faults or failures in both rings in multiple places.
During normal operation, Master # 2 is set in a
"THRU" mode via a DIP switch at the front panel.
When a double fault (all four fiber optic cables in a
fault condition) occurs (see figure), Master #2 is
switched back to "MASTER" mode.
In the "MASTER" mode, the broadcast messages
are sent through Master #1 and Master #2 at the
same time. The responses from the slave units are
also received by Master's #1 and #2.
In extreme situations where both rings are broken
in two separate places, both Master units poll the
Slaves at the same time, but through different "half"
rings.
Sample Application #1
Traffic Control SONET Ring Alternative
Application
In many traffic control applications, the TC2800
can be used as a low cost alternative to SONET or
T1 Rings. The diagram to the right illustrates how the
TC2800 can create a self-healing ring network for
linking traffic intersections with multiple RS-232
drops for traffic lights, cross walks, camera PTZ, etc.
High speed SONET networks are often expensive
and the TC2800 easily provides the desired ring fault
protection
A similar application uses the TC2800 to link PTZ,
radar detectors, ramp meters, weather stations, etc.
along a stretch of highway.
Sample Application #2
SCADA Utility Application
The diagram to the right illustrates a Distribution Automation
Network (DAN) with a Self-Healing Ring
topology over a distance of about 100 kilometers.
The DAN includes Automated Meter Reading and
telephone extentions (TC1900's).
It uses a TC2800 Master multi-drop multiplexer at
the main office and TC2801 slave muxes at each of
the other sites.
The DAN uses four asynchronous 38.4 kbps data
channels. To speed up the SCADA polling process
(which runs at 9600 kbps), the master station at the
main office communicates simultaneously with onehalf
of the Remote Terminal Units (RTUs) on channel
1, the other half on channel 2.
The DAN uses channel 3 for an Automated Meter
Reading (AMR) system capable of reading meters
manufactured by multiple vendors, again at 9600
bps. Channel 4 is used for telephone extension and
channel 5 is RS-485 AMR test applications. The
integrity of the DAN is monitored entirely through the
SCADA system.
Sample Application #3
Telephone & Data Application
The TC2800 can multiplex both telephone and
data by using the "Quick-Talk" RS-232 Telephone
Extender. Quick-Talk is compatible with most analog
PBXs and enables dial-up telephone extensions to
be plugged into most RS-232 circuits.
Downloads
View Datasheet in PDF
Specifications
Data Rates (per channel)
- Async or Sync (w/ ext. clock)up to 56 Kbps
Optical
- TransmitterLED/ELED
- ReceiverPIN Diode
- Wavelength850/1300nm MM, 1300/1550nm SM
- Fiber Optic ConnectorsST, Optional FC
- Loss Budget * - 850/1300/1550nm
- Multimode @ 62.5/125?m15dB
- Single Mode @ 9/125?m20dB
Electrical
- ConnectorRJ11 Female
- InterfaceRS-232, RS-422, or RS-485 (2 or 4-wire)
Diagnostic Functions
- Local & Remote Loopback,Yes
- Signal Generator,Yes
- Disable AlarmYes
- Enable Anti-Streaming (TC2801)Yes (TC2801)
Power
- Standard12VDC @500mA
- Optional24VDC, -48VDC, 125VDC, or 115/230VAC w/ power cube
System
- Bit Error Rate1 in 109 or better
Alarm
- Dry ContactNormal OPEN
Visual Indicators
- SystemPWR A, PWR B, VccA, VccB
- Electrical SignalBRD & RSP (for each channel), AST (TC2801 only)
- Optic SignalRxA, TxB, RxB, SYNCA, SYNCB, A2B (TC2801 only), B2A (TC2801 only), LPA, LPB
- AlarmPWRA, PWRB, OPTIC, AST (TC2801 only)
Temperature
- Operating-10°C to 50°C
- Hi-Temp 1 (optional)-20°C to 70°C
- Hi-Temp 2 (optional)-40°C to 80°C
- Storage-40°C to 90°C
- Humidity95% non-condensing
Physical (Standalone Unit)
- Height(6.71 cm) 2.64"
- Width(18.13 cm) 7.14"
- Depth(24.89 cm) 9.80"
- Weight(1.20 kg) 2.66 lbs