Motorola SG 2000 operation manual SG2-SB, SG2-PS2, SG2-FE, 750, 870

O v e r v i e w 2 - 1 5

Model	Description	Function
SG2-MCB	Manual control	This board locally controls the ingress switch and
	board	receiver/transmitter A/B redundant switching if the node is not
		equipped with status monitoring.
SG2-SB/*	Strand bracket	Bracket for hanging a strand mounted node.
SG2-PS	Power supply	Provides the + 24 V and + 5 V dc supply to the station. It has an
		extended voltage range and is power-factor corrected.
SG2-PS2	Power supply	Provides the + 24 V and + 5 V dc supply to the station.
SG2-	Service cable	A 6-fiber service cable that is available with SC/APC or
SERCAB/*		FC/APC connectors.
SG2-FE-	Forward	Used to increase output tilt at one or more ports in a 750 MHz
*/750	equalizers	system. They are available in 1 dB increments from 2 dB
		through 6 dB.
SG2-FE-	Forward	Used to increase output tilt at one or more ports in an 870
*/870	equalizers	MHz system. They are available in 1 dB increments from 2 dB
		through 6 dB.
SG2-IS	Ingress switch	This switch enables the operator to troubleshoot without
		shutting down the return path. It requires the use of either the
		LL-SG2/* or the SG2-MCB.
SG2-LR	Lightwave	This receiver converts the received optical signal to
	receiver	broadband RF.
DS-SG2-DRRBDigital return		This board provides the redundant input to a
	redundancy	DS-SG2-DRT/A-2X digital return transmitter. One DRRB is
	board	used for each -2X transmitter.
SG2-*	Analog return	Table 2-1 identifies and describes the five optical analog
	transmitters	return-path transmitters.
DS-SG2-DRT*	Digital return	Table 2-2 identifies all models of the optical digital return-path
	transmitters	transmitters. Section 5, “Operation,” provides detailed
		information and block diagrams for each series of digital
		transmitters.

SG 2000 Installation and O peration Manual