Teltrend

Teltrend 390ALCD Digital T1 CSU Single Mount w/ Lock RJ-48C Terminal Block

(No reviews yet) Write a Review
SKU:
34527
MPN:
390ALCD
Condition:
Used
Availability:
Usually ships within 1-2 business days.
Weight:
5.00 LBS
Shipping:
Calculated at Checkout
  • Teltrend 390ALCD Digital T1 CSU – front-left angled view showing front panel LED indicators and housing
  • Teltrend 390ALCD Digital T1 CSU – rear view showing terminal block connections and RJ-48C interface
  • Teltrend 390ALCD label showing model number 390ALCD, date code 10/00E, and Teltrend Inc. St. Charles IL contact info
  • Teltrend 390ALCD front panel close-up showing PWR, LPMK, PAC LOS, CPE LOS, ESF, MON, EQUIP IN, EQUIP OUT, SPAN CURRENT, and MNLS LED indicators
$45.00
Was: $90.00
Current Stock: 1

Sold Out

Description

Teltrend 390ALCD Digital T1 CSU Single Mount w/ Lock RJ-48C Terminal Block

A Channel Service Unit (CSU) for T1 digital telecom circuits. This device terminates and conditions T1 signals between network and customer premise equipment (CPE), supporting ESF framing protocol.

Specifications & What's Included

  • Model: 390ALCD
  • Interface: T1 with RJ-48C connector and terminal block
  • Protocol: T1 ESF
  • Mount Type: Single mount with lock
  • Form Factor: Desktop/standalone
  • LED Indicators: PWR, LPMK, PAC LOS, CPE LOS, ESF, MON, EQUIP IN/OUT, SPAN CURRENT, MNLS
  • Date Code: 10/00E
  • Unit only—no cables or accessories included

Applications

T1 CSUs were standard interface devices in telecom networks for decades, bridging carrier T1 lines to business phone systems, data routers, and other CPE. This unit supports both ESF and D4 framing modes, making it compatible with legacy and standard T1 network deployments. Commonly used in enterprise telecom closets and remote site installations.

Condition: Used
This Teltrend 390ALCD Digital T1 CSU has been inspected and is in good condition. The housing shows light surface wear consistent with normal use. The front panel LED indicators and labeling are clean and readable. The rear terminal block and RJ-48C connector area appear intact. Please view our photo set and contact us if you have any questions.
View AllClose

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.
View AllClose

Additional Information

Brand:
Teltrend
Model:
390ALCD
MPN:
390ALCD
Type:
Digital T1 Channel Service Unit (CSU)
SKU:
34527
Condition:
Used – Inspected
Interface Type:
T1, RJ-48C
Connector Type:
RJ-48C, Terminal Block
Protocol:
T1 ESF
Mount Type:
Single Mount with Lock
Form Factor:
Desktop / Standalone
Date Code:
10/00E
Country/Region of Manufacture:
United States
Seller Notes:
Unit only — inspected and in good condition. See photos.
Compatible With:
T1 telecom networks, CPE equipment, ESF/D4 framing
LED Indicators:
PWR, LPMK, PAC LOS, CPE LOS, ESF, MON, EQUIP IN/OUT, SPAN CURRENT, MNLS
Condition Notes:
Teltrend 390ALCD Digital T1 CSU. Inspected and in good used condition. Light surface wear on housing. Front panel and terminal block intact. See photos for details.
View AllClose

Related Products

Related Products

TeleProcessing Products TP-501 CSU/DSU Digital Termination Unit – front three-quarter view showing front panel controls and attached power cable TeleProcessing Products TP-501 front panel close-up showing OS and TEST buttons and Pattern, DTE, DDS loopback switches
Add to Cart
Quick view

TeleProcessing Products TP-501 CSU/DSU Digital Termination Unit T1 DDS

TeleProcessing Products Inc.

$75.00
Was: $150.00
TeleProcessing Products TP-501 CSU/DSU Digital Termination Unit T1 DDSThe TeleProcessing Products TP-501 is a CSU/DSU (Channel Service Unit / Data Service Unit) digital termination unit designed to...
28311
SKU:
28311
Availability:
Usually ships within 1-2 business days.
Weight:
7.00 LBS
Brand:
TeleProcessing Products Inc.
Model:
TP-501
MPN:
TP-501
Type:
CSU/DSU Digital Termination Unit
SKU:
28311
Interface Type:
T1, DDS, DTE
Loopback Modes:
Pattern Loopback, DTE Loopback, DDS Loopback
Front Panel Controls:
OS button, TEST button, Pattern/DTE/DDS loopback switches
Form Factor:
Desktop
Seller Notes:
Includes AC power cable
Condition:
Used – Inspected and in Good Condition
Compatible With:
T1 and DDS digital circuits
Condition Notes:
TeleProcessing Products TP-501 CSU/DSU Digital Termination Unit. Inspected and in good used condition. Normal wear. Front panel controls intact. AC power cable included.
Astrocom SP-Series SP100SA T1 line network modem — front panel showing LINK, MONITOR, LEDS, control port DB-9, and POWER indicator Astrocom SP100SA rear panel showing IEC power inlet, ON/OFF switch, PPP RS-232 DB-9, V.35 user port, and RJ-48C T1 line port
Add to Cart
Quick view

Astrocom SP-Series SP100SA T1 Line Network Modem V.35 PPP RS-232 RJ-48C 120V

Astrocom

$40.00
Was: $80.00
Astrocom SP-Series SP100SA T1 Line Network Modem V.35 PPP RS-232 RJ-48C 120VStand-alone T1 line network modem for connecting T1/DS1 circuits to computer systems via V.35 interface. Supports PPP...
18110
SKU:
18110
Availability:
Usually ships within 1-2 business days.
Weight:
4.00 LBS
Brand:
Astrocom
Model:
SP100SA
MPN:
SP-100-SA-120-STAND ALONE
Secondary Model:
0100120
Part Number 2:
0897-01
Type:
Stand-Alone T1 Line Network Modem
SKU:
18110
Series:
SP-Series
Interface Type:
T1, V.35, PPP RS-232, RS-232 Control
T1 Port Connector:
RJ-48C
User Port Interface:
V.35
Control Port Interface:
RS-232 (DB-9)
Data Protocol:
PPP
Data Rate:
1.544 Mbps (T1 / DS1)
Power Requirements:
120V AC, 0.5A, 50/60Hz, Single Phase
Voltage:
120V
Current Rating:
0.5A
Frequency:
50/60Hz
Phase:
Single Phase
Fuse Rating:
0.5A, 250V
Form Factor:
Desktop / Stand-Alone
FCC Compliance:
FCC Part 68, FCC Part 15 Class B
Country/Region of Manufacture:
United States
Condition:
Used – Inspected
Seller Notes:
Unit only; no accessories included. Inspected and in good condition.
Condition Notes:
Astrocom SP100SA T1 Line Network Modem. Inspected and in good used condition. Clean overall with normal cosmetic wear. Front panel and rear connectors intact with no visible damage.
Motorola FT100M Managed Fractional T1 DSU/CSU – front view with included manual, Ault power supply, and DB-25 adapter Motorola FT100M DSU/CSU – right-side and top view showing beige desktop enclosure and ventilation slots
Add to Cart
Quick view

Motorola FT100M Managed Fractional T1 DSU/CSU Dual DTE 1.544 Mbps RJ-48C

Motorola

$55.00
Was: $100.00
Motorola FT100M Managed Fractional T1 DSU/CSU Dual DTE 1.544 Mbps RJ-48C w/ManualManaged fractional T1 DSU/CSU (Data Service Unit/Channel Service Unit) for T1 carrier circuits and fractional T1 WAN...
34153
SKU:
34153
Availability:
Usually ships within 1-2 business days.
Weight:
8.00 LBS
Brand:
Motorola
Model:
FT100M
Secondary Model:
6104506100010
MPN:
6104506100010
SKU:
34153
Seller Notes:
Includes original Motorola FT100M User's Guide, Ault Class 2 power supply, and DB-25 interface adapter
Form Factor:
Desktop / Shelf Mount
Country of Manufacture:
United States
Power Requirements:
120VAC, 60Hz, 0.28A input; +5VDC/1.0A, ±12VDC/0.25A output via Ault Class 2 PSU
Interface Type:
T1 ESF / D4, RJ-48C (NWK), Dual DB-25 DTE, DB-25 MGT, LAN NWK RJ
Data Rate:
1.544 Mbps
Protocol:
T1 ESF
Management Type:
Managed – SNMP, out-of-band management port (DB-25 MGT)
Number of Ports:
2 DTE (DB-25), 1 MGT (DB-25), 1 NWK RJ-48C, 1 LAN NWK RJ
Connector Type:
RJ-48C (NWK), DB-25 (DTE x2, MGT), Terminal block (ALARM/SENSE), DIN power
Standards Compliance:
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
Condition Notes:
Motorola FT100M Managed Fractional T1 DSU/CSU pulled from a working environment; visually inspected. Shows minor cosmetic scuffs typical of used equipment. Includes original User's Guide, Ault power supply, and DB-25 adapter.
Seller Notes:
Includes original Motorola FT100M User's Guide, Ault external power supply, and DB-25 interface adapter
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:
T1 carrier circuits; DTE equipment with DB-25 V.35 or RS-232 interfaces; SNMP network management systems
Interface Type:
T1 ESF / D4, RJ-48C (network), Dual DB-25 DTE, DB-25 MGT, LAN NWK RJ, ALARM/SENSE terminal block
Data Rate:
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:
RJ-48C (network/NWK), DB-25 (DTE Port 1, Port 2, MGT), terminal block (ALARM/SENSE), DIN power
Condition Notes:
This Motorola FT100M was pulled from an operational environment where it was in active service. The unit has been visually inspected and all product photos were taken of the actual unit in inventory. Cosmetic wear including minor scuffs or surface ma
[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