Carrier Access 770-0125-AB Cabling the Alarm Ports, Cabling the Clock Ports on the ITU Chassis

Installation

Cabling the Alarm Ports

Cabling the Clock Ports on the ITU Chassis

On the front panel of the chassis are two pairs of synchronization clock ports: CKIN-1and CKOUT-1, and CKIN-2and CKOUT-2(one pair is redundant for the other). CKIN-1and CKOUT-1are connected to NSP-1, and CKIN-2and CKOUT-2are connected to NSP-2.

Connect a second clock source

Connect a clock source

NIP RX1	NIP RX2	RX1	RX2	RX3	RX4	CKIN-1	CKIN-2	ETH-1 ETH-2		SCP-1
NIP TX1	NIP TX2	TX1	TX2	TX3	TX4	CKOUT-1	CKOUT-2	ALARMS	ACO	SCP-2

Connect the CKOUT ports to provide the timing signal to a further piece of communications equipment. The CKIN-1, CKOUT-1, CKIN-2, and CKOUT-2ports are 75ohm BNC connectors.

Cabling the Alarm Ports

The ALARMS port supports four alarm contact connections: two inputs and two outputs. These contacts can be used to provide additional external alarms (audible and visual) when an alarm occurs on the BROADway system as well as to collect alarms arriving from external sources.

NIP RX1	NIP RX2	RX1	RX2	RX3	RX4	CKIN-1 CKIN-2	ETH-1	ETH-2	SCP-1
NIP TX1	NIP TX2	TX1	TX2	TX3	TX4		ALARMS	ACO	SCP-2

The ALARMS port is a female, DB15 connector.

The ALARMS port provides two alarm sense inputs, and two alarm generation outputs.

!Alarm sense #1 and #2 (alarm inputs)—These are used to collect alarms coming from an external source, such as other equipment, high water sensor, fire alarms, and so forth.

BROADway - Release 4.00 2-11