Precision Time Clock

1. Precision Time Clock

. The Vendor shall provide a quantity of four (4) precision time clocks with hardware. The satellite-synchronized, 19” rack-mount time clock shall provide four independent copper Ethernet ports operating on 24VDC. The supporting hardware shall include an antenna, cabling, mounting brackets, and surge protection. The clock shall be Schweitzer Engineering Laboratories (SEL) part number 2488RCX1181AX23X. This part number includes the clock supporting hardware described below.

1. Clock Supporting Hardware

. The supporting hardware shall include an antenna, mounting brackets, surge protection, and cabling. The Vendor shall provide an SEL-9524B antenna installation kit with each of the four clocks. SEL part number 915900428 shall include the GPS/GLONASS antenna, 25’ and 50’ LMR-400 cables, gas tube coaxial surge protector and mounting kit, and antenna pipe mount kit. The Vendor shall also provide four (4) longer antenna cables as summarized in the Table 4 below.

1. Miscellaneous Hardware

. The Vendor shall provide two (2) 6’, CAT 6 Ethernet cables for each of the four time clocks. The clock is manufactured to mount in a standard 19” equipment rack. The vendor shall provide an adapter or bracket(s) to mount it in a 24” equipment rack. Some locations also require the clock to be panel-mounted to a side or back panel in an enclosure. The Vendor shall provide brackets to flush-mount the clock on the panel. Quantities of misc. hardware is summarized in Table 4 below.

1. Material Summary

. The quantities for the clock, supporting, and miscellaneous hardware are summarized in Table 4.

Table 4. Precision Time Clock Hardware Requirements

Item

Part No.

Quantity

SEL 2488 Precision Time Clock

2488RCX1181AX23X

4

SEL 9524B Antenna Installation Kit *

915900428

4

SEL-C961 Coaxial Cable, 100’

C961#J927

2

SEL-C961 Coaxial Cable, 150’

C961#DM6D

1

SEL-C961 Coaxial Cable, 200’

C961#G82H

1

Ethernet Network Cable, CAT6, 6’

8

Rack-mount Kit, 24”

1

Panel-mount Kit

2

* Antenna kit part of preceding part number

1. Delivery

. All material shall be delivered to the address identified below:

US Army Corps of Engineers

Attn:  Shane Nieukirk

1222 Spruce Street

Saint Louis, MO  63103-2833