Idex Hale Sam, Operation Installation Maintenance Manual

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5.3 Compressed Air Requirements
The OEM/apparatus builder shall supply dry compressed air with a minimum of 75 psi, a maxi-
mum of 150 psi. (Typically, from the vehicle air brake system which is typically capable of the
90 psi to 150 psi at approximately 13 cfm at 1250 rpm.) The pump kit or module provides a
loose coil of hose to connect the OEM/apparatus builder supplied air. See Figure 53. The air sup-
ply should include a protection valve as required by DOT standards.
Figure 53. Connect To Truck Air Tag
5.4 CAN Bus Requirements
The SAM system utilizes three (3) separate CAN buses (see Figure 2, page 13): Blue (engine
ECU), Green (intake valves), and Red (discharge valves). The Blue bus connects the apparatus
(ECU) and the SAM control modules and is labeled for connection by the OEM/builder. All CAN
bus wiring is provided by Hale for SAM system components.
Each buses backbone (Blue, Green, Red) can be up to 131 ft (40 m) consisting of shielded
twisted pair and using two 120 Ω termination resistors (one at each end). Each backbone sup-
ports up to 30 nodes (touchscreens, ITL-40, Twister, Navigator(s), Akron Brass valves, modules,
foam controller/display); each branch can be up to 39 inches long using 3-pin connectors.
When SAM includes an optional SmartFOAM system the SmartFOAM display CAN bus 2
(Connector C; pin 2, CAN Hi and pin 3, CAN Lo) must be connected as a node on the SAM Green
CAN bus using the included harness. All SmartFOAM options connect to the foam system bus.
(Called the orange bus.)
When SAM includes an optional SmartCAFS system the SmartCAFS display CAN bus 2
(Black connector; pin 19, CAN Hi and pin 18, CAN Lo) must be connected as a node to the SAM
Green CAN bus using the included harness. All SmartCAFS options connect to the foam system
bus. (Called the orange bus.)
DO NOT ALTER THE CAN NETWORK COMMUNICATIONS (SAE J1939 CAN BUS) OR CON-
NECT OTHER DEVICES TO ANY OF THE CAFS, CAPTIUM, FOAM, OR SAM CAN BUS BACK-
BONE(S).