Kentrox Satellite 651 Single-port DSU/CSU

Kentrox Satellite 651 Single-port DSU/CSU

Please contact us  301-924-7400

Kentrox Satellite 651 Single-port DSU CSU


The Satellite™ 651 DSU/CSU is the ideal low cost access solution for T1 and FT1 networks. The unit ships with default settings for the most common confi gurations (ESF framing and B8ZS line coding), so it is as easy to set-up as it is to use. You can customize these settings and manage the unit locally via the front-panel LCD and push buttons. For even greater management capability, use the Satellite 651 in tandem with Kentrox DataSMART® DSU/CSUs. With a DataSMART at the central site, you can access the remote Satellite 651 via the ESF FDL link. You can change the unit’s configuration, collect full performance statistics, view system status, and generate loopbacks. An industry-standard V.35 data port provides connectivity to the widest range of customer premise equipment.


• Connects router, video or any other serial application
• Complete remote performance monitoring and diagnostics
• Integrated AC power supply
• Extensive loopbacks
• Low-cost remote offi ce access
• Remote management with any DataSMART DSU/CSU
• Local control with front panel LCD and LEDs
• Supports T1 / FT1 leased-line and Frame Relay services
• Five-year warrantyy

Ordering Information



Line Rate: Internal or external clock; 1.544 Mb/s ± 50 bps.

When timing is derived from input signal:

1.544 Mb/s ± 200 bps

Output line rate follows input line rate

Line Code: AMI or B8ZS (B8ZS set as default)

Line Impedance: 100 ohms ±10 ohms at 772 kHz

100 ohms ± 20% over the frequency band

100 kHz to 1 MHz

Lightning Protection:

Lightning surges defi ned per FCC Part 68

shall not damage the unit

Framing Format: SF or ESF per ANSI T1.403-1989, and

TR-54016-1989; (ESF set as default)

Input Level : DS-1 from 0 dB to –27.5 dB

(0 dB set as default)

Input Jitter Tolerance:

Per TR 62411-1990 (p. 4.7.1)

Output Level: Per ANSI T1.403-1989

3.0 Volt peak ± 10% into 100 ohms at

output connector

Output Signal: Tolerant to impedance mismatches

Line Build Out: 0, 7.5, 15.0 selectable

Output Jitter: TR 62411-1990 (p. 4.7.3)

Jitter Transfer: DSU: TR 62411-1990 (p. 4.7.3)

Pulse Density: When enabled shall be > 12.5%

Mechanical: DA15 Plug (DB15 Male)


Bit Rates: Nx56 kbps or Nx64 kbps (N-1…24)

Mechanical: 34-pin MRAC34S connector

Electrical Interface: V.35 compatible

Interface Type: DCE


LEDs: Power/fail; T1; Data port transmit; Data

receive; Data port CTS; Data port RTS

Loop Tests: Local loopback; Data terminal loopback


Loop Tests: Line loopback; Payload loopback

Data port loopback

Line Test Codes: QRS; 3-in-24; 1-in-8; All 1s; All 0s

Data Test Codes: 511; 2047

BERT Tester: Independent BERT on all test codes


In-Band: Via ESF FDL

LCD: Front panel display of unit status

Front panel confi guration of unit


Storage Tempature: -20°C to 66°C (5% to 65% RH)

Operating Temp: 0°C to 50°C (5% to 90% RH, non-condensing)


Size with Feet: 1.7 inches by 7.75 inches by 11.5 inches

Size without Feet: 1.65 inches by 7.75 inches by 11.5 inches

Weight: Approximately 2.5 pounds


AC: 85 to 130 VAC, 47 to 63 Hz, 8W


FCC Compliance: Part 68; Part 15, Class A

NRTL Listed: UL 1950, 3rd Edition

CSA: 22.2; No. 950

IC: CS-03


ANSI: T1.403-1995

AT&T: TR 54016-1989; TR 62411-1900

TR 54019A; PUB 43802

Bellcore: TR 194


Hardware: 5 Years

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