Price: $38.99 | Compatible Instruments: Sokkia SRX1/SRX2/SRX3/SRX5 Robotic Total Station; Matching Power Parts: BDC58 Lithium Battery, CDC68 Dual-Slots Charger, EDC113A AC Power Adapter; Matching Survey Accessories: CX-101 Vertical Hand Wheel, iM52/iM55 Silicone Keyboard, RTK Carbon Fiber Sharp Point

This OEM-spec EDC121 Y split cable solves SRX robotic station external power & data transmission field wiring troubles: separate power cord and RS232 data line messy stacking, single-function cables requiring multiple spare harnesses, unshielded generic wires subject to construction site electromagnetic interference, mismatched pinout causing instrument unrecognition and differential data loss, loose metal connectors triggering sudden power cut-off during long-time automatic ATR tracking, insufficient single cable length limiting base station layout adjustment. Standard Y three-way integrated design: 5-pin round male plug connects SRX instrument rear port, DB9 female RS232 serial port for computer data download & parameter setting, SAE round power jack links external AC adapter or large-capacity external battery. Simultaneously realize stable external DC power supply and real-time RS232 serial data transmission, widely used in open-pit mine automatic monitoring, highway control network layout, tunnel long-term deformation observation and large-area rural cadastral mapping projects.

Product Overview

The Sokkia EDC121 dedicated Y composite power-data cable is official matching wiring harness exclusively developed for SRX series robotic total stations, specially designed to work with EDC113 series AC power adapters for long-time uninterrupted field operation. Complete Y-shaped split integrated structure: single-end 5-pin metal male aviation plug (instrument main data-power composite port), split dual terminals at the other end – DB9 RS232 female serial port, SAE external power input jack. The whole wire adopts double-layer braided copper full shielded twisted pair wire core, thick wear-resistant matte black flexible PVC outer sheath, standard 1.8m fixed length, all metal connector pins adopt thick gold-plated anti-oxidation process, resisting mud, rainwater and underground tunnel damp long-term corrosion. Independent isolation separation circuit built inside the cable body, realize non-interfering independent transmission of instrument working power and serial measurement data, no signal crosstalk or voltage fluctuation during simultaneous power supply and data reading. Fully compliant with Sokkia official RS232 communication protocol, support field measurement data export, instrument firmware upgrade and robotic station parameter configuration operations. Pure plug-and-play without extra adapter conversion, greatly simplify field robotic station wiring layout and reduce the quantity of spare cables carried outdoors.

Core Advantages & Practical Structural Design

• 100% OEM standard pin definition, Y split layout, 1.8m wire length and double full shielding structure consistent with factory original EDC121 cable, one-piece replacement for broken, poor contact or unshielded split separate power/data wires
• Dual-function Y integrated design: single cable realizes external continuous power supply + RS232 serial data transmission two core functions, eliminate trouble of carrying separate power cord and data line during all-day automatic robotic survey
• Double-layer braided copper full shielding wire core, effectively suppress electromagnetic interference from engineering machinery, high-voltage power lines and radio equipment, avoid data reading failure and instrument restart caused by field signal noise
• All aviation plug, DB9 serial port and power jack terminals adopt thick gold-plated pins, anti-rust and anti-oxidation, maintain stable high-current power supply and low-loss data conduction under high-humidity muddy mine and tunnel construction environments
• Internal independent isolation circuit layout, thoroughly isolate power loop and signal transmission loop, prevent power supply ripple interfering serial data accuracy during long-time ATR automatic tracking measurement
• 1.8m standard rational length, meet most field tripod and external power placement distance requirements; thick flexible anti-tensile outer PVC sheath, anti-scratch and anti-breakage for frequent mountain terrain moving and coiled storage
• Exclusive single-series instrument matching: perfectly fit all Sokkia SRX robotic total station models, matched with EDC113A AC adapter, CDC68 dual-slot charger and BDC58 lithium battery to form complete field power supply system
• Compatible matching accessory: Trimble TSC3 / TSC2 Yellow Nylon Carrying Case ($25, 0.2kg, 18 × 12 × 10 cm)
• Soft bendable Y-type integrated cable, freely coiled and folded for storage, occupy small space in instrument maintenance tool pouch alongside mechanical hand wheels, silicone keyboard mats and other survey spare parts

SRX Robotic Total Station Field Power & Data Maintenance Application Scenarios

Necessary multi-functional wiring maintenance spare part for rural large-area cadastral boundary mapping, building construction automatic stakeout layout, municipal pipeline control network measurement, open-pit mine unmanned robotic monitoring and long-term bridge/tunnel foundation deformation monitoring Sokkia SRX instrument projects. When original split power/data cables are damaged or messy wiring leads to robotic station power outage and measurement data export failure, survey maintenance technicians directly use this integrated EDC121 Y cable to connect SRX host, external power adapter and field notebook computer at one time, complete long-time continuous automatic tracking power supply and batch measurement data downloading in one setup. Full double shielding wire core completely solve field electromagnetic interference induced data loss and instrument unstable operation faults; two-in-one integrated design greatly reduce field equipment wiring time and spare cable carrying load. Store this EDC121 Y composite cable and other tiny survey maintenance peripherals in our high-visibility yellow nylon data collector case; reinforced canvas belt loop supports waist hanging for convenient cross-region field instrument repair transport.

Product Specifications

Matching Survey Accessory: Trimble TSC3 / TSC2 Yellow Nylon Carrying Case ($25)

Constructed with thick tear-proof nylon fabric, this bright yellow field protective bag shields Trimble TSC2 & TSC3 handheld data collectors from scratches, dirt and minor impact damage. Equipped with solid canvas belt loop for waist mounting, the independent front storage compartment holds EDC121 Y composite power-data cables, CX-101 vertical hand wheels, CDC68 dual-slot lithium chargers, BDC58 lithium battery packs and iM52/iM55 silicone backlit keyboard mats. 20 units available in warehouse for immediate worldwide shipping.

Browse more Sokkia SRX robotic total station wiring spare parts, Y-type power-data composite cables, external power adapter matching harnesses and mechanical adjustment hardware on xsurveying.com. We supply full series OEM-standard Sokkia survey instrument wiring replacement accessories to simplify field robotic station wiring layout and realize long-time uninterrupted power supply & stable serial data transmission for uninterrupted open-pit, tunnel and highway centimeter-precision automatic measurement workflows.