Hip Leds - Cisco 7000 Series Hardware Installation And Maintenance Manual

Interface Processor LEDs
The default mode for all interface ports without a port adapter cable attached is DCE, although there
is no default clockrate set on the interfaces. The DCE default allows you to perform local loopbacks
without having to terminate the port or connect a cable. Because the serial adapter cables determine
the mode and interface type, the FSIP port becomes a DTE when a DTE cable is connected to it. If
a DTE cable is connected to a port with a clockrate set, the DTE will ignore the clockrate and use
the external clock signal that is sent from the remote DCE.

HIP LEDs

Four LEDs on the HIP indicate different states of the HSSI interface. As with the other interface
processors, the enabled LED goes on when the HIP is enabled for operation. The four LEDs above
the HSSI port (see Figure B-12) indicate the following.
Figure B-12
•
•
•
•
B-10 Cisco 7010 Hardware Installation and Maintenance
DTE
TxD
TxC TxC
RxC RxC
RxD
RxD
DCD
DSR
DTR
RTS
CTS
LL
HIP LEDs
RT (Receive Timing)—When on, indicates that the HIP has detected a Receive Clock signal.
During normal operation, this signal is received from the external DSU. During loopback, this
signal is generated internally.
RD (Receive Data)—When on, indicates that the HIP has detected and is able to receive packets
from the external DSU.
ST (Send Timing)—When on, indicates that the HIP is transmitting a Transmit Clock signal to
the external DSU. During normal operation, this signal is derived from the Receive Timing (RT)
signal from the external DSU. During loopback, this signal is generated internally.
C (connected)—When on, indicates normal operation; the HIP is properly connected to the
external DSU, and TA (DTE available) and CA (DCE available) are active. When off, indicates
that the HIP is in loopback mode or is not connected to the DSU.
DCE
RxD
RxC
TxC