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DEFINITY Enterprise Communications Server Release 6
Installation and Test for Multi-Carrier Cabinets
555-230-112
Issue 5
May 1998
Install and Connect Cabinets
Page 1-27Connect External Alarm Cable
1
Connect External Alarm Cable
1. Plug the external alarm cable into the connector shown in Figure 1-9.
2. Route the opposite end of the cable to the MDF. The alarm cable is
connected to the MDF in Chapter 5, ‘‘
Install and Wire Telephones and
Other Equipment’’.
Connect AC Power to Stratum 3 Clock
Cabinet
The clock cabinet requires a 120 VAC, 15 Amp receptacle. The green wire
ground provided by the receptacle is sufficient. The clock cabinet does not
require a ground connection back to the single-point ground.
Check Commercial Power and Connect AC Power
Before powering up the system, check the AC power using a KS-20599 digital
voltmeter (DVM) (or equivalent).
1. Set the DVM to the 250 volt range.
2. Carefully measure the voltage between the hot and neutral side of the
receptacle. The neutral wire is white, the hot wire is black.
3. Verify the meter reads 106 to 128 VAC. If not, have a qualified electrician
correct the problem.
4. Measure the voltage between the neutral and ground side of the
receptacle. The ground wire is green.
5. Verify the meter reads 0 VAC. If not, have a qualified electrician correct the
problem.
6. Set all cabinet power modules OFF. Plug the AC power cable into the
receptacle.