S320 OCS Hardware User Guide
Doc. Part No. 460167-00
May 27, 2015
Rev. B7
Page 27 of 46
The external alarm interface has three (3) relays available for connections to facility or exchange
scan equipment that can signal the occurrence of Critical, Major and Minor alarms. A pinout for
the DB9 external alarm interface is listed in Table 3.
Table 3 – DB9 External Alarm Interface Pinout
Pin
Net Name
Text Name
1
CRITV_NC
Critical Alarm Visual Normally Closed
2
CRITV_RET
Critical Alarm Visual Common
3
CRITV_NO
Critical Alarm Visual Normally Open
4
MAJV_NC
Major Alarm Visual Normally Closed
5
MAJV_RET
Major Alarm Visual Common
6
MAJV_NO
Major Alarm Visual Normally Open
7
MINV_NC
Minor Alarm Visual Normally Closed
8
MINV_RET
Minor Alarm Visual Common
9
MINV_NO
Minor Alarm Visual Normally Open
3.3.4
Management Interfaces
The management interfaces on the S320 OCS provide Ethernet and serial connectivity: two (2)
Ethernet connections are used to control the switch using TL1 via a Telnet session, or using the
browser-based graphical user interface (GUI); a single serial connection provides the means for
retrieving or setting the switch’s IP address and performing TL1 operations.
The type of serial connection and the location of the management interfaces vary, depending
on which version (1 or 2) of the S320 OCS is being used.
3.3.4.1
Version 1
Management interfaces on version 1 of the switch (Figure 8) include:
Two (2) Gigabit Ethernet (GbE) RJ45 connectors, labeled NMS LAN A and B. These
interfaces are arranged vertically and located to the left of the LED indicators.
One (1) DB9 connector—labeled CRAFT PORT—provides serial connectivity. This
interface is located to the left of the RJ45 Ethernet connectors.
