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The Adtran TSU 120 (PN 1202129L2) is a standalone T1 CSU/DSU multiplexer designed to consolidate voice and data services over a single T1 circuit. It is commonly used in branch office and small enterprise settings for network access and PBX integration. Technical specifications: Model: TSU 120 Part number: 1202129L2 Type: T1 multiplexer with internal CSU T1 interface: 1 × RJ-48C, 1.544 Mbps, full duplex User ports: 1 × V.35 (DB-25 or 34-pin) for data, 1 × expansion slot for modular voice/data cards Clocking: Network, internal, or external Framing: D4 (SF) or ESF Line coding: AMI or B8ZS Diagnostics: Built-in loopback (local, remote, network), BER testing Indicators: LED status for power, test, alarm, network, and port activity Power supply: 120 V AC, external wall transformer (standard), optional -48 V DC Mounting: Desktop or wall-mountable Management: Front-panel configuration, SNMP via optional module Operating temperature: 0 °C to 50 °C Dimensions: Approx. 1.75 in (H) × 8.5 in (W) × 9.5 in (D) Weight: Approx. 1.3 kg Made in: Canada
Condition: Used
Weight: 4.11
Depth: 6.00
Length: 16.00
Width: 10.00
SKU: 5289 4.S7.15.2
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