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PA-4C-E 1-Port High-Performance ESCON Channel Port Adapter Installation and Configuration
OL-3743-02
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.
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.
Table 1 ESCON Specifications
Characteristic ESCON Specification
Supported processor I/O architectures ESA/390
Bit transmission Serial
Maximum distance (for LED with
ESCON)
1.9 miles (3.1 km) point-to-point
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 Dynamic
1
Number of addressable devices per
channel
256 x 16 x 16 x 253
2
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.