Service manual

46 Encore — Installation and Service Manual

Section 2 — Installation

BNC connectors found on the back of the frame. Two GSC mezzanines can

be installed in redundant SCBs for redundant GSC operation.

Figure 25. GSC Control Panels, Redundant Operation SCB Cabling

Figure 26. GSC Control Panels, Stand Alone SCB Cabling

The CP (Control Panel) Bus port supports a maximum of 16 control panels

(or devices) on each coaxial cable branch. There are four coaxial cable

branches, so the maximum number of GSC panels allowed is 64. An Encore

System Controller can control a total of 128 control panels so you could

have a maximum of 64 GSC control panels and still control up to 64 Encore

control panels via Ethernet.

The coaxial cable must be 75 ohm (Belden 8281 or equivalent) terminated

into 75 ohms at both ends of the bus. For redundant operation all four buses

must be looped and terminated. The maximum length of a CP Bus is 1500

8153_06_02r0

75 Ohm Terminator

(Required)

75 ohm Terminators

(For redundant operation

loop and terminate all four

BNCs at both ends

even if not used.)

Connect same as example above.

(Daisy chain 16 control panels per

BNC for a total of 64 maximum.)

GSC Control Panels

(Maximum 16 panels per BNC.)

Encore

Control Frame

8103_00_32r0

75 Ohm Terminator

(Required)

75 Ohm Terminators

(For stand-alone operation

required on each BNC used.

Unused BNCs do not need