4. TANDEM GATE DETAILS

The Tandem gate is typically used in high traffic situations where some control of incoming and/or outgoing traffic is required. The outside gate (slave) is usually a less expensive fast moving barrier gate (or light slide gate) which protects the more expensive and less mobile Slide or Swing inside gate (master). The outside gate does this by stopping the vehicle until the inside gate is completely open. The Tandem configuration can consist of any LiftMaster model for Master, and a model SL 1000-B3 (slide gate), or BG 3000-B3 (barrier gate) for Slave. NOTE: The SW 2000- B3 (swing gate) may not be used for Slave.

ADDTIONAL

INPUTS:

Radio

Cycle

Interrupt Bar

Photo-Sensors

Fire

MagLock

Manual Inputs

Gate

Operator

Master

Master/

Slave

Cable

ADDITIONAL

INPUTS:

Radio

Cycle

Interrupt Bar

Photo-Sensors

Fire

MagLock

Manual Inputs

Gate

Operator

Slave

COMPLEX

Exit Loop

Inside Interrupt

Loop

Shadow Loop

(swing gate only)

Outside Interrupt

Loop

Inside Interrupt

Loop

Outside Interrupt

Loop

STREET

1384F5

Figure 5. Typical Tandem Gate Installation.

Rev E

Doc 01-20201

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