1Pps/Tod Timing Connector; Alarms Connector; Figure 8-4: 1Pps/Tod Connector, Pin Identification; Table 8-2: 1Ppd/Tod Connector, Pin Identification - Eci Telecom NPT-1020 Installation And Maintenance Manual

NPT-1020 Installation and Maintenance Manual
8.5

1PPS/ToD Timing Connector

The 1PPS/ToD timing connector is an RJ-45 connector located on the NPT-1020 panel and designated
1PPS/ToD.
The interface includes a group of lines that are usually connected to the site timing reference distribution
subsystem.
The following figure identifies the connector pins, as seen when looking into the connector. The table lists
the pin assignment for the connector. It also lists the color of the wire connected to the corresponding pin
in the cables offered by ECI for connecting between the tributary connector and a distribution frame.

Table 8-2: 1PPD/ToD connector, PIN identification

Pin Name
1 1PPS_P
2 1PPS_N
3 --
4 GND
5 GND
6 --
7 TOD_P
8 TOD_N
8.6

Alarms Connector

The Alarms connector, designated ALARMS, is a 15-pin D-type male connector on the NPT-1020 panel that
provides an alarm interface connecting to the RAP. The connector supports two groups of lines:
Four external alarm input lines. The alarm input lines are monitored by the NPT-1020 management

subsystem. Each input is connected to the input diode of an optocoupler.
Three alarm output lines. Each output is provided by a relay dry contact.

Relay contact ratings are 75 V in open state and 1 A in closed state.
The ALARMS connector can be connected in one of the following configurations:
Direct connection to a customer's alarms collection facilities

Connection to the RAP

ECI Telecom Ltd. Proprietary

Figure 8-4: 1PPS/ToD connector, pin identification

Function
1PPS RS422 signal
1PPS RS422 signal
--
--
Time of Day character
--
Time of Day character
Time of Day character
Connection Data
Direction
Input/Output
Input/Output
--
--
--
--
Input/Output
Input/Output
8-3