NEC DS1000, Рабочая тетрадь для заочного курса

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DS1000/2000 Correspondence Course
DS2000 System Installation
NEC America DS1000/2000 Workbook
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105
Connecting to the CPRU Relays
Any keyset extension that receives Door Box chimes can control the CPRU
relay, which in turn typically enables an electric strike on an entrance door
next to a Door Box. After answering the Door Box chimes, the extension user
can press a FLASH or a soft key to enable the associated relay. The visitor at
the door can then enter without having an employee open the entrance for
them. The control relays are normally open and close when active. Note that
if you use a relay for External Paging Control, you cannot also use it for
Door Box strike control.
To connect to the CPRU Relays:
1. Find an available connector in a station cable and make sure it is cor-
rectly punched down at the 66M1-50 block.
Follow standard color code order. Be sure the block is properly
cross-connected.
2. For the connector chosen, locate pins 3T and 3R (see below) and connect
to the device the relays will control.
3. Plug the modular jack into the CPU modular connector.
Be sure the equipment connected to the relays is compatible with
the following CPU relay specifications:
Maximum Load: 60 mA @ 30 VDC
10 mA @ 90 VDC
Maximum Initial
Contact Resistance: 50 mOhms
Configuration: Normally open
The following products should help if you make your own cables:
●
Suttle SE-266-8K 8 Position Modular Plug (requires an SE-166
or SE-166-6 modular crimping tool).
●
Hubbell BRFTP4P Snap-On 8 Position Modular Plug (does not
require a special crimping tool).
Check with your local supplier for other comparable products.
RJ61X
Pin
Latch
faces up
To CPU
Mod Jack
Note
reversal
Port
Designation
To 66 Block
WHT-BLU (1T)
BLU-WHT (1R)
WHT-ORN (2T)
ORN-WHT (2R)
WHT-GRN (3T)
GRN-WHT (3R)
WHT-BRN (4T)
BRN-WHT (4R)
80000 - 18
4T
3T
2T
1R
1T
2R
3R
4R
1
2
3
4
5
6
7
8
Page Out
Music In
Relay Contacts
No Connection
Connecting Control Relays