Cisco Systems PA-4C-E 1 manual Escon Specifications, LEDs, Characteristic Escon Specification

Overview

•For general information on HP ESCON PA microcode, refer to the “HP ESCON PA Microcode Overview” section on page 12 . For specific instructions to configure the Cisco IOS software to download microcode from the router Flash memory card or SanDisk memory device, refer to the “Upgrading the HP ESCON PA Microcode from Cisco.com” section on page 33 .

ESCON Specifications

Table 1 lists the specifications for the ESCON interfaces.

Table 1	ESCON Specifications
Characteristic		ESCON Specification
Supported processor I/O architectures		ESA/390
Bit transmission		Serial
Maximum distance (for LED with		1.9 miles (3.1 km) point-to-point
ESCON)		5.7 miles (9.2 km) with two ESCON Directors and each hop
		not exceeding 3 km.
Channel data rate		Up to 17 MBps
Signaling rate		200 Mbps
Cable types		Fiber-optic (62.5/125 micron multimode)
Addition of devices to running systems		Dynamic1
Number of addressable devices per		256 x 16 x 16 x 2532
channel
Connectable control units per channel		Up to 59 (through a 9032 ESCON Director)
Connectable channels per adapter		Up to 59 (through a 9032 ESCON Director); varies by
		control unit

1.The HP ESCON PA requires dynamic = NO with HCD.

2.Where 256 represents available unit addresses, 16 represents the number of logical partitions (LPARs), 16 represents the number of control unit images, and 253 represents the number of ESCON director paths. It is unlikely a system would have the resources to support the total number of available addresses.

LEDs

The functions of the HP ESCON PA LEDs are as follows:

•Enabled—Indicates that the HP ESCON PA is enabled for operation by the system.

•Present—Indicates that the ESCON channel is detected by the HP ESCON PA.

•Loaded—Indicates that the ESCON channel firmware is completely loaded.

•Signal—Indicates that the sync signal has been detected from the ESCON neighbor node.

•Online—Indicates that an establish-logical-path request has been received from the channel and that the establish-logical-path request matches one of the paths configured on the HP ESCON PA.

PA-4C-E 1-Port High-Performance ESCON Channel Port Adapter Installation and Configuration

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