Ts1/Ts2 Controllers - Wavetronix Click 65 Series User Manual

TS1/TS2 controllers

TS1 controllers were introduced in 1976 and reissued in 1983, 1989,
and 1994. They coexisted with TS2 until about 1999. The design
of the TS1 included the function and electrical characteristics for
pins on the three connectors designated as A, B, and C. In addition
they also provided a D connector which was manufacturer-specific.
These are often referred to as harness connectors as this is where
the wiring harnesses for the cabinets are terminated.
TS1 controllers receive detection inputs through contact closure
cards usually found in racks wired in the cabinet and connected
to the front of the controller. Shelf mount contact closures were
also used where racks were not available. Wavetronix sensors
can interface to these controllers using either a backplate-to-con-
tact-closure connection or by using a Click 600 series cabinet
interface device to connect the contact closure outputs. The wiring
from the contact closures to the controller is pre-wired in the
cabinet.
TS2 controllers were formally approved by both NEMA and IMSA in
1992 and became the official successor to the TS1 controllers. TS2
was updated in 1998 and again in 2003 when NTCIP was added
to the standard. In order to accommodate a transition from TS1
pin connectors A, B, C, and D, two types of TS2 controllers were
developed.
Type 1 is a pure TS2 controller and was intended for new system
installations. These controllers can only communicate via SDLC.
Some TS2 Type 1 cabinets still use detector racks but provide their
inputs to the SDLC in the controller through a BIU in the card rack.
TS2 Type 2 controllers are widely used because of the flexibility of
placing them into either a TS1 or TS2 cabinet. These provide both
an SDLC connection and the front pin connectors A, B, C and D.
Either type of TS2 cabinet provide for better standardization. It
includes coordination, preemption, time based control, automatic
flash & telemetry hardware. It specifies all connections inside
the traffic cabinet and specifies physical layer of system-level
communications.
Chapter 5: SDLC
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