Motorola SG 2000 operation manual Fuse Functi o n Rati ng Ype

3 - 4 B e n c h S e t u p

Table 3-1 identifies and describes the ac fuse options:

T a b l e 3 - 1

AC f u s e s

Fuse Functi o n		Rati ng		T ype
F1	This fuse delivers ac power to all ports. It is always required	20	A,	Auto,
	except when power from the ac input (port 2) must be	32	Vdc	plug-in, fast
	blocked at this location.			blow
F2	This fuse passes ac power to/from port 1.	20	A,	Auto,
		32	Vdc	plug-in, fast
				blow
F3	This fuse passes ac to/from port IN.	20	A,	Auto,
		32	Vdc	plug-in, fast
				blow
F4	This fuse is always required for the dc power supply.	10	A,	Auto,
		32	Vdc	plug-in, fast
				blow
F5	This fuse passes ac to/from port OUT.	20	A,	Auto,
		32	Vdc	plug-in, fast
				blow
F6	This fuse passes ac to/from port 3.	20	A,	Auto,
		32	Vdc	plug-in, fast
				blow
F7	This jumper ties two sections of the ac power bus together	Jumper		Auto,
	thus delivering ac power to both sides of the node. It should			plug-in,
	be removed only when dual power supplies are fed from			shunt
	separate ac sources.
F8	The 5V circuit includes Fuse F8 which protects the lid and	5 A, 32 Vdc		Auto,
	RF board under short-circuit conditions in conjunction with			plug-in, fast
	redundant power supplies.			blow
F9	The 24V circuit includes Fuse F9 that protects the lid and	10	A,	Auto,
	RF board under short-circuit conditions in conjunction with	32	Vdc	plug-in, fast
	redundant power supplies.			blow

CA U T ION!

Voltages up to 90 Vac are accessible. To avoid shock hazard, confirm that no power is applied to the node before removing cover or replacing fuses.

S G 2 0 0 0 I n s t a l l a t i o n a n d O p e r a t i o n M a n u a l