HP XA manual 10BT/100TX PCI LAN Connector, Ultra wide 16-bit Scsi connector, Scsi Interface

3Interface Devices and Mass-Storage Drives SCSI / LAN Combo Board

10BT/100TX PCI LAN Connector

The LAN adapter supports the following two standards: 100 VG-AnyLAN,

100Mbits per second over 4-pair, category-3, unshielded twisted pair (UTP), voice grade (VG) cable (IEEE 802.12 standard for Ethernet);

10BaseT, 10 Mbits per second, ISO 8802-3 (IEEE 802.3 standard). On the rear panel there is one RJ-45 unshielded-twisted-pair (UTP) connector. The 10BT/100TX LAN Features on page 62 are also valid for the 10 BT/100 TX PCI LAN controller.

Ultra wide (16-bit) SCSI connector

SCSI Interface

The Symbios Logic SYM5C875J PCI-SCSI I/O Processor chip connects directly the SCSI bus and generates timing and protocol in compliance with the SCSI standard.

The SCSI interface operates as 16-bit, synchronous or asynchronous, single- ended, and supports Ultra SCSI protocols and 16-bit arbitration. The interface is made through two (and only two) of the connectors J2, J3 and J4.

Connector	Description	Location
J2	Shielded 68-pin high density right-angle receptacle.	Protrudes through the
		rear panel bracket.
J3	68-pin high density right-angle receptacle.	Internal connector at the
		end of the board.
J4	External Start, SCSI Led and External SCSI cable	Internal connector at the
	detection.	bottom right-hand-side of
		the Combo card.

The Ultra wide 16-bit SCSI connector is for internal devices and has an address range from 0 to 15, with the SCSI address 0 used by the first SCSI hard disk drive and SCSI address 7 reserved for the integrated SCSI controller (the default for wide and narrow SCSI devices).

Data is transferred at 40 MB per second on 16-bit wide, single-ended bus. The controller is fitted with a 16-bit SCSI flat cable with five connectors, plus a SCSI termination device; so a maximum of 4 internal wide-SCSI hard drives are supported.

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