Channel Interface Processor (Cip) - Cisco 7000 Series Hardware Installation And Maintenance Manual

Physical Description

Channel Interface Processor (CIP)

The CIP provides up to two channel attachment interfaces, eliminating the need for a separate
front-end processor. (See Figure 1-14.) The CIP interfaces are combinations of a bus and tag (also
called an original equipment manufacturer's interface [OEMI] and a parallel I/O interface) adapter
and/or an Enterprise Systems Connection (ESCON) adapter.
The bus and tag adapter is called the Parallel Channel Adapter (PCA) and the ESCON adapter is
called the ESCON Channel Adapter (ECA). The PCA and ECA connect directly to the CIP
motherboard, and any combination of the two adapters can be used on the CIP.
Note
maintenance provider only.
While up to three CIPs can be installed in the Cisco 7010, we recommend that you leave one slot
available for a WAN interface. The default CIP microcode boot image resides on an ROM in socket
U37.
The supported processor input/output architectures for the CIP include ESA/390 for ESCON and
System/370, 370/Xa, and ESA/390 for bus and tag. The ESCON interface is capable of a data rate
up to 17 megabytes per second (MBps) and the bus and tag interface is capable of a data rate up to
4.5 MBps.
Figure 1-14
Following are the functions of the CIP LEDs.
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1-24 Cisco 7010 Hardware Installation and Maintenance
The ECA and PCA adapters can be upgraded or replaced in the field by a Cisco-certified
Channel Interface Processor (CIP)
Enabled—Indicates that the CIP has been enabled for operation by the system.
Present—Indicates that the adapter (ECA or PCA) has been detected by the CIP.
Loaded—Indicates that the adapter (ECA or PCA) firmware has been completely loaded.
Signal—For the ECA, this LED indicates that the Sync signal has been detected.
For the PCA, this LED indicates that the Operational Out signal has been detected. Note that even
though a system reset and selective reset both cause the Operational Out signal to drop, the signal
LED will still be on during those sequences.
Online—For the ECA, this LED indicates that an establish-logical-path request has been
received from the channel.
For the PCA, this LED indicates that the PCA is ready to establish connection to the host channel.
PCA ECA
CIP microcode boot image
ROM U37