Tech Brief 7: DS2152 and DS215

Abstract: Tech Brief 7 provides the requirements for mulTIplexing four PCM streams into one 8MHz system backplane using the Dallas Semiconductor / Maxim DS2152 and DS2154 T1 / E1 single chip tranceivers (SCTs). The DS2155, DS26528, DS26524, DS26522, DS26521, DS26519 and DS26518 all contain IBO funcTIonality without external circuitry and are recommended for new designs.

The DS2152 and DS2154 PCM signals can interface to an 8 MHz system backplane. Typically this applicaTIon is used to mulitplex four 2.048 MHz PCM streams onto a single 8 MHz PCM stream. To accomplish this, the elasTIc stores are enabled and placed in the 2.048 MHz System Clock mode. Figure 1 describes a timing scheme in which a single RSYNC is generated for all four framers. Each framer in turn is driven with an 8.192 MHz clock burst of 8 cycles. Each clock burst causes the elastic store to output 1 DS0. This results in a "Byte Interleaved" 8.192 MHz PCM stream as shown in Figure 2.

Figure 1.
Figure 1.

Figure 2.
Figure 2.

Self Closing Braided Sleeve

Self Closing Split PET Braided Sleeve Self Closing Wrap Cable Sleeving


flexible semi-rigid wrappable split PET braided cable sleeving is a perfect solution to protect wires, cables, wire harnesses where ease of installation is paramount. With a 25% overlap, this sleeving wraps securely to itself eliminating the need to secure the sleeving opening with any other method.


Feature & benefits of self closing wrap split cable sleeve

1, Economical & easy to install

2, Cut & abrasion resistant

3, 25% edge overlap

4, Halogen free

5, Splice Free



Technical data

Material

Polyester

Operating range

-40℃-+150℃

Melt point

240±10℃

Flnmmability

UL94V-2

Standard color

Black

Certificate

ROHS, Halogen Free

Cutting tool

Hot knife, Scissors


Remarks of self closing wrap sleeve

1, Inner diameter is diameter of the round sleeving, not the lay flat width.

2, The length can be cut according to customers` request.

3, Special packaging, special color, special size and other can be customized according to customers` requests.



Technical data of Self closing Braid Wrap cable sleeve color

Material: Polyester , PET

Operating range:-50°C~ +150°C

Melt point:240± 10 °C

Flammability: UL94-V2

Certificate: RoHS, Halogen free

Standard color: Black

Cutting tool: Hot knife/ Scissors



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