ADC HRM-238 L1 user manual Management Cabling, Connector Purpose Type Gender No. Pins

Overview LTPH-UM-1237-04

Management Cabling

Figure 5 shows the location for each connector on the HRM-238 shelf backplane. Table 1 lists the shelf connector types and management functions available to the HMU-319 management units through those connectors.

	B-side connectors				A-side connectors
50-pin Amphenol	AUX port DB-25	OS port DB-25	AUX	port DB-25	OS port DB-25	50-pin	Amphenol
connector (P6)	connector (P5)	connector (P4)	connector (P3)		connector (P2)	connector	(P1)

H0545-A

Alarm relay pins (J14) BNC connector (J3) Terminal block (TB1) Alarm relay pins (J13) BNC connector (J1)

Figure 5. HRM-238Shelf Backplane Connectors (back view)

Table 1. HRM-238 Connectors

Connector	Purpose	Type	Gender	No. of
				Pins
P1, P6	Provides connection from the HRM-238 shelf for the management	Amphenol	Male	50
	units to each individual card that they manage.	(CHAMP)
P2, P3, P4, P5	Provides 4 connection points (two for each management unit) for a	DB-25	Female	25
	terminal, computer, or modem. There is one AUX port and one OS port
	connector for each management unit.
TB1	Provides separate -48 Vdc connection from the CO battery source	Terminal	N/A	6
	to each management unit. Also provides battery common ground and	block
	a frame ground.
J13, J14	Provides connection for alarm relay contacts.	Wire-wrap	Male	23
		pins
J1, J3	Provides a 10BASE-2 connection to a LAN.	BNC	Female	1

4 July 21, 2004 HRM-238 List 1