CISCO ATM DS3 Duplex DS3/734A Belden Greycoaxial cable 25FT BNC(Male)-BNC(Male)W/ Heat shrink Boots (RED and BLACK).

Duplex DS3/734A coaxial cable assembly,w/ heat shrinkboots (red and black), PVC rated, color of the cable - gray, Duplex 2xcable (Belden), T3/E3 These cables are offered in many constructions for interconnection and cross connection of DSX (Digital Cross Connect) transmission systems. Using 75 ohm coax cable designed for digital.

Connector Spec:

Manufacturer Part No: 2025-76-9

RoHS Compliance:Yes

• BNC Coaxial Connector
• Contact Termination:Twist On
• Body Style:Straight
• RG Cable Type:734A, 734D
• Voltage Rating:500V RoHS Compliant: Yes

Cable Spec:

DS-3 and DS-4 Transmission Formats
Digital Signal Level 3 (DS-3) and DS-4 are the transmission formats used in telephone equipment to carry traffic in Central Office facilities. DS-3 is a signal capable of 672 multiplexed voice channels, or 28 T-1s. DS-3 systems operate at a transmission rate of 44.736 Mbps and a frequency of 22.368 MHz. DS-4 has a channel capacity of 4,032 voice channels, a transmission rate of 274.176 Mbps, and a frequency of 137.088 MHz. DS-1 (1.544 Mbps) and DS-1C (3.125 Mbps) are other standards from the North American digital hierarchy.

DS-3 and DS-4 Cables
Bellcore GR-139-CORE (Generic Requirements for Central Office Coaxial Cable) contains and defines the requirements for coax cable utilized in DS-3 and DS-4 systems. 734A*, 734D*, and 735A* are industry references for coax made for Central Office applications in general, and Digital Signal Cross-connect (DSX) applications in particular. All Belden's DS-3 and DS-4 Coax Cables conform to the requirements of Bellcore GR-139-CORE.

Cross-connect or Interconnect Applications
Cross-connect applications are those within a DSX. A DSX frame is an array of equipment operating at a particular digital transmission rate. Interconnect cables are those carrying signals between a DSX and a multiplexer or other transmission equipment. Digital Multiplexers (MUX) combine and de-combine individual voice channels for transmission or distribution. DS-3 and DS-4 signals are also carried within and between patch panels, transmitters, receivers and telephone switches.

735A* SeriesComplies with Bellcore Specification GR-139-CORE.
Product Description: Solid silver-plated copper conductor, foam high-density polyethylene (HDPE) insulated, with Beldfoil® aluminum-polyester shield plus 93% tinned copper braid shield. Multiple coaxes feature inner Gray PVC jackets with printed numbers for circuit identification. Overall Gray PVC jacket. Siamese versions feature zip cord design, with printing on one leg.SRL:30 dB min. @ 15-90 MHz
25 dB min. @ 90-200 MHz
20 dB min. @200-500 MHz
(Typical all constructions)Trade No.
UL in In.
Nom. DCRInsulation
& Nominal
Core ODNominal
ODNo. of
Shields &
Material
Nom. ft.dB/ 100 m735A1
(1-Coax)
NEC CMR
CEC CMR500
1000152.4
304.87
1226 Ohms /M'
134.2 Ohms/kmFoam Ohms/M'
17.3 jacket:
Gray Polyvinylchloride (PVC)