ZETRON 640 DAPT XTRA, Руководство по установке и ремонту

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Installation
56 025-9416
R
J
2
1
R
J
2
1
25-pair cable
(Part No. 709-0004)
To RJ21
radio
station
and telco
interface
66-type punchdown
block
(Part No. 802-0093
or 802-0263)
Figure 22. Punchdown Block Installation
Follow the steps below to connect the punchdown block to the paging terminal:
q
1. Power-down the paging terminal.
q 2. Obtain or make a cable with a female 50-pin connector (to Model 640) on one end
and either flying leads or a male 50-pin connector (to punchdown block) on the other
end. Refer to Table 6 for the telco pin configuration of the RJ21 connector on the rear
panel of the paging terminal.
q 3. Plug the female connector into the RJ21 interface on the rear of the Model 640.
q 4. Plug the male connector into one of the RJ21 interfaces on the punchdown block. Be
sure to make the Model 640 connections on one side and the radio station and telco
connections on the opposite side.
If using flying leads instead of a male RJ21 connector, punchdown the telco leads in
the appropriate places.
q 5. Attach the punchdown block to a wall or fixture where it is easily accessible.
Telco Interface to the Zetron Punchdown Block
The interface to a central office (CO) or private access branch exchange (PABX) is typically
provided by way of one of two hardware configurations:
•
a 25-pair 66-type punchdown block
•
standard RJ-type phone jacks