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CiscoASR 9000 Series Aggregation Services Router Hardware Installation Guide
Chapter1 Preparing for Installation
RSP and RP Port Connection Guidelines
Table 1 -8 lists the pin-to-signal correspondence between the cable connector pins and the alarm
connector relay contacts.
Sync Port Connection Guidelines
The SYNC 0 and SYNC 1 ports are timing synchronization ports. They can be configured as Building
Integrated Timing Supply (BITS) ports or J.211 ports (Figure1-66).
Note Both ports must be configured to be the same mode. It is not possible to use external BITS and J.211
sources at the same time.
When configured as BITS ports, they provide connections for an external synchronization source for
establishing precise frequency control at multiple network nodes, if required for your application. The
RSP/RP card contains a synchronous equipment timing source (SETS) that can receive a frequency
reference from an external BITS timing interface or from a clock signal recovered from any incoming
Gigabit Ethernet or 10-Gigabit Ethernet interface. The RSP/RP SETS circuit filters the received timing
signal and uses it to drive outgoing Ethernet interfaces.
The BITS input can be T1, E1 or 64K 4/. The BITS output can be T1, E1 or 6.312M 5/.
When configured as J.211 ports, they can be used as Universal Timing Interface (UTI) ports to
synchronize timing across multiple routers by connecting to an external timing source.
When lit, these LEDs indicate for BITS:
•Green (LINK)—Connection is alive.
•Amber (FAULT)—A fault has occurred.
Table1-8 Alarm Connector Pinout
Pin Signal Note
1 Critical alarm NC NC (normally closed) connected to CM (common) when
there is no Critical alarm
2 Critical alarm CM Common
3 Critical alarm NO NO (normally open) connected to CM (common) during a
Critical alarm
4 Major alarm NC NC (normally closed) connected to CM (common) when
there is no Major alarm
5 Major alarm CM Common
6 Major alarm NO NO (normally open) connected to CM (common) during a
Major alarm
7 Minor alarm NC NC (normally closed) connected to CM (common) when
there is no Minor alarm
8 Minor alarm CM Common
9 Minor alarm NO NO (normally open) connected to CM (common) during a
Minor alarm