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Fiber Optics, Modems, Multiplexers,
Converters, Video, SONET, LAN, Ethernet, Scada, ITS, Security, Teleconferencing.
TC Communications
fiber optics,
Modems, Multiplexers, Converters, Video, SONET, Security,
fiber Optic Modem, Multiplexer, Converter, Video, SONET, LAN,
Ethernet, Scada, ITS, Security,
Model
TC8916
Broadcast & Receive Device
Features
Product or Application Questions (click
here)
- Supports Polled Response
SCADA Networks
- Data Rates up to 120
Kbps
- Up to 24 Channels; Can
be Cascaded
- Anti-Streaming
Capabilities on Each Channel
- LED Indicators for Each
Channels Tx & Rx Status
- Standalone or Rackmount
Description
Designed specifically for SCADA
and process control applications with a Star topology, the TC8916 Broadcast
& Receive Device broadcasts & receives information from remote devices.
Transparent to all data sent in either direction, it is typically used to
link SCADA Hosts to remote terminal units (RTUs) via fiber optic or metallic
cable.
The host port on the TC8916
receives a broadcast message from the host controller and broadcasts the
message out through up to 23 ports at the same time. The broadcast message
(sent by SCADA HOST) has embedded Identification (ID) numbers for each RTU.
Only the RTU that matches this ID number will respond.
An "Anti-Streaming" capability
is provided for each channel to prevent a single node failure from disabling
the system. A channel will be disabled if it transmits a Tx data string
beyond a set length of time. Once OFF, it will attempt to resume
communications after the jam condition ends.
The TC8916 supports data rates
up to 120 Kbps and is compatible with both RS-232 and RS-422 interfaces.
Interfaces can be mixed or matched in increments of four. The TC8916 is
available in 8-Channel (7 + Host), 16-Channel (15 + Host) and 24-Channel (23
+ Host) versions.
Diagnostic LEDs for Tx and Rx
are included for each channel. Additional LEDs are provided for Alarm,
Power A, Power B, and Vcc. Connectors are RJ-11 Female. Power is 12VDC@
400mA or 115/230VAC with an external power cube. The TC8916R PC Card version
fits into TCRM191 and TCRM195 rackmount card cages.
TC8916 Specifications
| Channel
Capacity |
| TC8916 |
8
(Host +7), 16 (Host +15), or
24 (Host +23)Channels |
| Data
Rates |
| TC8916 |
DC to 120Kbps (async) |
| Electrical |
| Connector |
RJ11 Female |
| Type |
RS232 or RS422 |
| System |
| Bit error rate |
1 in l09 or better |
| Visual Indicators |
Tx, RX for each channel,
Alarm, Power |
| Power |
| Power source |
I2VDC @300ma |
| optional: 115 or 230VAC |
with external power cube |
| Temperature |
Operating: TC8916
TC8916T |
-100C to 500C
-200C to 700C |
| Storage |
-400C to 900C |
| Humidity |
95% non-condensing |
| Physical |
| Stand Alone Unit |
Height: 8 Channel (6.5cm)
1.30"
16 Channel (6.5cm)
2.60"
24 Channel (6.5cm)
3.90" |
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Width (18.0cm) 7.20" |
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Depth (25.0cm) 9.75" |
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Weight (1.36kg) 3.0 lb |
Typical Application (Application Questions)
The TC8916 is often
used in SCADA applications with a Star topology to link a SCADA Host to
RTUs. The TC8916's RS-232/RS-422 user ports are extended via either a fiber
modem or multiplexer. When the Host Polling Device sends information to the
TC8916 via the RS-232/RS-422 Host Port, it will broadcast to each of the
RS-232/RS-422 user ports. The addressed remote device(s) will then respond
back to the Host Device.
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Electronics