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22 Installing a stand-alone AEM
Alarm connections
Alarm connections with Meridian 1 systems
553-3201-200 Standard 1.0 April 1993
When you add a stand-alone AEM to a Meridian 1, you must extend alarm
cables from the AEM pedestal to the existing system as described in the
following procedures.
Use this procedure to configure and connect the NT8D22 system monitor in
an AEM column that is connected to other Meridian 1 columns.
Procedure 3xxx
Alarm connections
1
Loosen the two retaining screws on the system monitor in the pedestal
of the AEM column and remove it from the PDU.
2
Configure the system monitor as a slave as shown in Table 2.
See Circuit card installation and testing (553-3001-211) for a detailed
description of the option switch settings .
3
Reinstall the system monitor in the PDU.
Table 2xxx
NT8D22 switch settings (set as slave) for operation with Meridian 1
Switch
1
SW1
off
SW2
off
SW3
off
* Set to off for ac power. Set to on for dc power.
4
Connect the system monitor to the Meridian 1 columns.
Use an NT8D46AL cable when columns are adjacent. Use an
NT8D46AP cable if columns are not adjacent.
Cable the system monitor in series (slave 1-to-slave 2, slave 2-to-slave
3, and so on) with the other columns:
a.
Run cables from connector J6 on one system monitor to J5 on the
next.
b.
Terminate at J5 on the last column in the series.
2
3
4
off
*
off
off
(to set positions 3 - 8, see Table 3)
off
off
off
5
6
7
off
off
off
8
off
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