ECI XDM-300, Руководство по установке и обслуживанию

Страница: 241 / 266

XDM-300 Installation and
Maintenance Manual Connectors Pin Assignment
417006-2311-0H3-A00 ECI Telecom Ltd. Proprietary A-21
ALARM IN/OUT Connector
The ALARM IN/OUT connector is a SCSI 68-pin female connector that carries
three groups of lines:
| Sixteen external alarm inputs connected to the ALARM inputs of the
XDM-300 shelf. Four inputs are allocated to each XDM-300 shelf. Each
input is activated by closing a dry contact provided from the customer’s
facility. For example to activate alarm input 1 of shelf 2 you have to close
dry contacts between pins number 43 and 44 of the connector.
| Eight sets of change-over relay contacts floating with respect to shelf
ground, which serve as rack (bay) status outputs. Each couple of the eight
relays is assigned to one of the output alarm lines of the four XDM-300
shelves connected to the xRAP-100.
|
Four sets of change-over relay contacts floating with respect to shelf
ground, which serve as rack (bay) alarm indication lines. The relays,
identified as critical, major, minor, and warning, are activated by the
corresponding alarm relays of XDM-300 shelves.
Relay contact ratings are 75 V in open state, and 1A in closed state.
The following figure identifies the ALARM IN/OUT connector pins as seen
when looking into the connector. The table lists the pin assignment for the
ALARM IN/OUT connector. This table also lists the color of the wire
connected to the corresponding pin in the cables offered by ECI Telecom’s
Transport Networking Division for connecting between the ALARM IN/OUT
connector and a distribution frame.
Pin 34
Pin 68
Pin 35
Pin 1
Figure A-11: ALARM IN/OUT connector pin identification