Cisco DNCS System Release 2.7 3.7 4.2 Installation Guide
2-4
Install and Configure the Digital System Time Kit to Use the
78-4011510-01 Rev C
Global Positioning System
Install the Digital System Time Kit
Introduction
The Digital System Time Kit provides the components needed to connect the DNCS
to the GPS. This connection enables the DNCS to synchronize to the GPS.
This section provides the following information and procedures:
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This section provides the following information and procedures:
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Digital System Time Kit components and other necessary equipment
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Wiring and connection diagrams
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Cable wire descriptions
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Installation and connection instructions
Digital System Time Kit Components
The following components are included in the Digital System Time Kit (part number
713703):
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Trimble Acutime-II Antenna Receiver, part number 560942
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Trimble Acutime-II Cable, 200-ft., part number 560941
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ADL 1901 Acutime II-to-RS-232 Converter Unit, part number 187687
(includes a 12 V DC 1 AMP power supply and a 6-ft DB-9 to DB-25 cable)
Additional Equipment Needed
To install the Digital System Time Kit, you also need the following equipment:
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Sufficient length of threaded rigid conduit pipe to obtain a clear view of the sky at
the mounting bracket location. The threaded socket accepts a 1.00-in.—14 straight
thread
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Mounting brackets to attach the pipe to a building or to another pole
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Choose one of the following options:
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For a V440 or a V445 DNCS: Use the 6-ft DB–9–to–DB-9 straight-through
extension cable (with one male end and one female end [part number 180143,
supplied with the kit])
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For a V880 or an E450 DNCS: Use a X985a DB-25 serial port splitter cable to
connect the Digital System Time Kit to the DNCS
Important: If this DB-25 serial port splitter cable is not already connected to the
port labeled A/B on the back panel of the V880 or the E450 DNCS, you must
acquire and connect this cable before proceeding with the installation. You do not
need the X985a serial port splitter cable for installing on an E250 DNCS.
Note: To purchase the X985a DB-25 serial port splitter cable, contact your Cisco
Note: To purchase the X985a DB-25 serial port splitter cable, contact your Cisco
North American Marketing Manager.