ADC Kentrox

ADC Kentrox DataSmart 656 T1 DSU ENM 72656 1.544 Mbps RJ-48C Ethernet

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SKU:
17977
MPN:
72656
Condition:
Used
Availability:
Usually ships within 1–2 business days.
Weight:
6.00 LBS
Shipping:
Calculated at Checkout
  • ADC Kentrox DataSmart 656 T1 DSU ENM 72656 – angled front-right view showing desktop enclosure, ventilated housing, and front LCD panel
  • ADC Kentrox DataSmart 656 – close-up of front panel showing green LCD status display and indicator LEDs
  • ADC Kentrox DataSmart 656 72656 – rear panel showing Network and Control DCE DB-25 ports, Data Port 1 connector block, Ethernet/LAN RJ-45 jack, and IEC AC power inlet
  • ADC Kentrox DataSmart 656 – bottom label showing model 72656, T1 DSU ENM designation, FCC registration F8IUSA-31256-DE-N, ETL Listed mark, and ANSI/UL-1950 compliance
$30.00
Was: $60.00
Current Stock: 1

Sold Out

Description

ADC Kentrox DataSmart 656 T1 DSU ENM 72656 1.544 Mbps RJ-48C Ethernet

T1 Data Service Unit with Ethernet Network Management capabilities. Converts and manages T1 WAN circuits at 1.544 Mbps with front-panel LCD status display for monitoring and diagnostics.

Specifications & What's Included

  • Model: DataSmart 656 (MPN 72656)
  • Data Rate: 1.544 Mbps T1
  • Interfaces: RJ-48C (T1), DB-25, DB-15, RJ-45 (Ethernet management)
  • Protocol Support: T1 ESF / D4
  • Management: Ethernet Network Management (ENM)
  • Certifications: FCC Part 15 & 68, ANSI/UL-1950, ETL Listed, IC Canada
  • Unit only; no cables or accessories included

Applications

Used in telecommunications environments to terminate and manage T1 WAN circuits. Connects to enterprise networks and ENM management systems for remote monitoring and configuration. Common in legacy and hybrid network deployments where T1 circuits remain in service alongside modern infrastructure. Desktop/standalone form factor for rack or shelf mounting in telecom closets and network operations centers.

Condition: Used
This ADC Kentrox DataSmart 656 T1 DSU with Ethernet Network Management (model 72656) has been inspected and is in good used condition. The unit shows normal cosmetic wear consistent with prior service use. The front-panel LCD and LED indicators are visible and intact. The rear ports — including the Network DB-25, Control DCE DB-25, Data Port 1 connector block, and Ethernet/LAN RJ-45 — appear undamaged and complete. The IEC AC power inlet is clean with no visible damage. Please view our photo set and contact us if you have any questions.
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Warranty Information

We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information

Brand:
ADC Kentrox
Model:
DataSmart 656
MPN:
72656
Secondary Model:
72656
Type:
T1 DSU with Ethernet Network Management (ENM)
SKU:
17977
Condition:
Used – Inspected
Seller Notes:
Unit only; no cables or accessories observed in photos.
Country/Region of Manufacture:
United States
Form Factor:
Desktop / Standalone
Interface Type:
T1, RJ-48C, DB-25, Ethernet (RJ-45)
Data Rate:
1.544 Mbps
Protocol:
T1 ESF / D4
Standards Compliance:
ANSI/UL-1950, FCC Part 15, FCC Part 68
Connector Type:
RJ-48C (Network), DB-25, DB-15, RJ-45 (Ethernet)
Management Type:
Ethernet Network Management (ENM)
FCC Registration:
F8IUSA-31256-DE-N
Certifications:
ETL Listed, FCC Part 15 & 68, ANSI/UL-1950, IC Canada
Display:
Front-panel LCD status display
Compatible With:
T1 WAN circuits, ENM network management systems
Condition Notes:
ADC Kentrox DataSmart 656 T1 DSU ENM (72656) — inspected, good used condition. Normal cosmetic wear. Rear ports and LCD panel intact. No accessories included.
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DATA, RED ALM, YEL ALM, TI, TEST, POWER/FAIL, Monitor RCV/XMT
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Country of Manufacture:
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Power Requirements:
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Interface Type:
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RJ-48C (NWK), DB-25 (DTE x2, MGT), Terminal block (ALARM/SENSE), DIN power
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FCC Part 68, UL Listed, Canadian ICES, ANSI T1.403, ITU G.703
Compatible With:
Legacy T1 WAN networks, fractional T1 circuits, point-to-point data links
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Seller Notes:
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Form Factor:
Desktop
Power Requirements:
120VAC, 60Hz, 0.28A input via Ault Class 2 external power supply; +5VDC/1.0A, ±12VDC/0.25A output
Compatible With:
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Up to 1.544 Mbps (Full T1) / Fractional T1
Protocol:
T1 ESF, D4
Standards Compliance:
FCC Part 68, UL Listed, Canadian ICES
Number of Ports:
2 DTE ports (DB-25), 1 MGT port (DB-25), 1 NWK RJ-48C, 1 LAN NWK RJ
Management Type:
Managed – SNMP, out-of-band management port
Connector Type:
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Condition Notes:
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[INTERNAL] Serial Number:
19903493
[INTERNAL] Assembly Number:
6104506100010
[INTERNAL] Manufacture Date Code:
4396 (Q4 1996)
[INTERNAL] FCC Registration:
AK3USA-21062-DE-N
[INTERNAL] Power Supply Model:
Ault 7612-305-409E12
[INTERNAL] Power Supply Asset Code:
9436-A (visible on power supply top)
Type:
Managed Fractional T1 DSU/CSU
Country/Region of Manufacture:
United States
Compatible With 1:
T1 carrier circuits; fractional T1 WAN networks
Compatible With 2:
DTE equipment with DB-25 V.35 or RS-232 interfaces
Compatible With 3:
SNMP network management systems
Date Code:
4396
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