LEDs on the FIC-8E1/FIC-8E1-F panels | 3Com MSR 30, MSR 20, MSR 50

FIC-8E1/FIC-8E1-F 171

The following table describes the LEDs on the card panels:

Table 117 LEDs on the FIC-8E1/FIC-8E1-F panels

LED	Description

LINK	OFF means no link is present; ON means a
	link is present.
ACTIVE	OFF means no data is being transmitted or
	received. ON means data is being
	transmitted and/or received.

Interface Cable The FIC-8E1/FIC-8E1-F card provides eight E1 ports and adopts a 120-ohm or a 75-ohm 8E1 conversion cable. The two types of cables look similar. Both of them have a DB-68 connector at one end for connecting the router. At the other end, however, the 75-ohm 8E1 conversion cable provides 16 coaxial cable connectors; and the 120-ohm 8E1 conversion cable provides eight twisted pair cable connectors, as shown in the following figures:

Figure 209 75-ohm 8E1 conversion cable

Figure 210 120-ohm 8E1 conversion cable

Page 171

Image 171

3Com MSR 30, MSR 20, MSR 50 manual LEDs on the FIC-8E1/FIC-8E1-F panels, ohm 8E1 conversion cable

Contents

H3C MSR 20/30/50 Series Routers United States Government Legend 3Com Corporation Campus Drive Marlborough, MA USA Contents FIC-8E1/FIC-8E1-F 143FIC-8ASE/FIC-16ASE 161 FIC/DFIC Purchase Guide 238 ESM/VPM/VCPM Purchase Guide Ande Module 229 Snde Module 230 Vcpm Module 231SIC/DSIC Purchase Guide 235 236Page Convention Description Lists icon conventions that are used throughout this guideLists text conventions that are used throughout this guide Text Conventions Documentation Related SIC/DSIC Interface CardsWAN interface cards Overview MIM/DMIM/XMIM Overview FIC/DFIC Interface RoutersPort 10Base-T/100Base-TX FE interface card FIC-4FE Overview Encryption cards SIC/MIM/FIC PurchaseGuideline Voice interface cards Flat-module screwdriver Installation/Removal A SIC/MIM/FICInstalling a SIC Tools required Installing/Removing a Installing a MIMRemoving a SIC Removing a MIM Installing a MIM Command Execute the undo remove slot command howeverOperation by using the undo remove slot command Repeat these steps to install all the other FICs Overview Or slot SIC-1FEASo on Router ACT Description of the LEDs on SIC-1FEA panelLED Link DTE, DCE SIC-1SAEInterface attributes of the SIC-1SAE Description Attribute Synchronous Asynchronous LEDs on SIC-1SAE panel SIC-1SAE panel DTE cable DCE cable RS449 DCE cable RS449 DTE cable RS530 DCE cable RS530 DTE cable SIC-1EPRI/SIC-1E1-F Interface attributes of SIC-1EPRI/SIC-1E1-FAttribute Description 120-ohm DIP switch Description Ohm impedance Impedance Description of the LEDs on SIC-1EPRI/SIC-1E1-F panel Interface LEDsSIC-1EPRI panel is shown in the following figure SIC-1E1-F panel is shown in the following figure Addition, a 75-ohm to 120-ohm adapter is available SIC-1EPRI/SIC-1E1-F. By default, they are not suppliedConnecting the Interface Cable Balanced twisted pair cables Marked TX Interface attributes of SIC-1TPRI/SIC-1T1-F SIC-1TPRI/SIC-1T1-F SIC-1T1-F panel SIC-1TPRI panel Description of the LEDs on SIC-1TPRI/SIC-1T1-F panel Default, they are not supplied SIC-1AM/SIC-2AM Interface LEDs SIC-1AM panelInterface attributes of SIC-1AM/SIC-2AM Low-End and Mid-Range Series Routers Cable Manual SIC-1FXS/SIC-1FXO SIC-2FXS/SIC-2FXO SIC-2FXS/SIC-2FXO Interface LEDs SIC-1FXS/SIC-1FXO panelSIC-2FXS/SIC-2FXO panel SIC-1FXS/SIC-1FXO SIC-2FXS/SIC-2FXO includes a ferrite core telephone cable SIC-4FSW/SIC-4FSW-PoDSIC-9FSW/DSIC-9FS PoE MDI/MDIX Interface Attributes To a Hub or LAN Switch using a straight-through cable CableLEDs on the panel SFP SIC-1GECInterface Attributes of the SIC-1GEC Maximum SIC-1GEC panel Connecting Ethernet electrical interface cable Connecting Ethernet fiber interface cable Card SignalsConfigure a VPM based on voice traffic SIC-1VE1 Description Ohm impedance Description of DIP switch settings of SIC-ERRI/SIC-1E1-FConfiguration DIP SIC-1VE1 panel Following table describes the LEDs on the SIC-1VE1 panel SIC-1VE1. By default, they are not supplied SIC-1VT1 Following table describes the LEDs on the SIC-1VT1 panel Interface Attributes of the SIC-1T1-FDescription on SIC-1VT1 LED SIC-1ADSL SIC-1ADSL delivers these features Following table describes the LEDs on the card panel Interface attributes of the SIC-1ADSLSIC-1ADSL SIC-1ADSL-I Connecting the SIC-1ADSL Interface attributes of the SIC-1ADSL-I LEDs on the SIC-1ADSL-I panel1ADSL-I Connect the SIC-1ADSL-I SIC-1BS/SIC-2BS&SIC-1 BU/SIC-2BU SIC-1BS/SIC-2BS RJ45 Interface attributes of SIC-1BS/SIC-2BS and SIC-1BU/SIC-2BU LEDs on SIC-1BS/SIC-2BS and SIC-1BU/SIC-2BU panels SIC-1BSV/SIC-2BSV SIC-1BSV SIC-2BSV Following figure illustrates the SIC-2BSV panelInterface attributes of SIC-1BSV/SIC-2BSV LEDs on SIC-1BSV/SIC-2BSV panel Crossover Isdn S/T cable Straight-through Isdn S/T cable SFP/LC SIC-1FEF Status Description Press the button on the connector to remove itFollowing table describes the LEDs on the SIC-1FEF panel LEDs on SIC-1FEF panel Interface attributes of SIC-8AS SIC-8AS Following table describes the LEDs on the SIC-8AS panel LEDs on SIC-8AS panelLINK/ACT Customized cable Smart Interface Cards MIM-1FE MIM-2FE MIM-4FE MIM-1FE/MIM-2FE/MI4FE Modules Interface attributes of MIM-1FE/MIM-2FE/MIM-4FE Active MIM-2FE panel is shown in the following figureMIM-4FE panel is shown in the following figure Interface Cable Ethernet cable MIM-1GBE/MIM-2GBE ModuleMaking Ethernet cable MIM-1GBE MIM-2GBE Interface attributes of MIM-1GBE/MIM-2GBEDescription of the LEDs on the MIM-1GBE/MIM-2GBE panel Description Attribute MIM-1GEF MIM-2GEF MIM-1GEF/MIM-2GEFCable Manual Interface attributes of MIM-1GEF/MIM-2GEF MIM-2GEF panel MIM-1GEF panel Are not provided By Lucent MIM-2SAE/MIM-4SAE MIM-8SAE ModuleInterface attributes of MIM-2SAE/MIM-4SAE/MIM-8SAE MIM-4SAE panel is shown in the following figure MIM-8SAE panel is shown in the following figureDescription of the LEDs on the MIM-2SAE/MIM-4SAE panel 24 DTE cable RS449 DTE cable Connecting the Interface Cable MIM-8ASE/MIM-16AS Interface attributes of MIM-8ASE/MIM-16ASEDescription Attribute MIM-8ASE module MIM-16ASE module MIM-16ASE panel is shown in the following figure Mid-Range Series Routers Cable ManualRemoval tends to damage the module and even the device Introduction MIM-1E1/MIM-2E1/MIM-4E1 E1-F modules do not support PRI modeMIM-1E1/MIM-2E1/MI 4E1/MIM-1E1-F/MI 2E1-F/MIM-4E1-F Modules MIM-1E1 panel E1 120-ohm balanced twisted pair cable E1 75-ohm unbalanced coaxial cable 120-ohm 4E1 conversion cable Conversion cable for MIM-4E1/MIM-4E1-F module Module MIM-1E1/1E1-F MIM-2E1/2E1-F MIM-4E1/4E1-F See Low-End and Mid-Range Series Routers Cable Manual DIP Local Rx wire to the remote Tx wire Connecting interface cable of MIM-4E1/MIM-4E1-F Interface attributes of the MIM-8E1 and the MIM-8E1-F MIM-8E1/MIM-8E1-FIntroduction MIM-8E1 module MIM-8E1-F module Description of the LEDs on the MIM-8E1/MIM-8E1-F panel MIM-8E1 120-ohm panel MIM-1T1/MIM-2T1/MI 4T1/MIM-1T1-F/MI 2T1-F/MIM-4T1-F ModulesIntroduction MIM-1T1/MIM-2T1/MIM-4T1 module FT1 CT1, Isdn PRI LP/AL MIM-1T1 panel Extending a T1 cable Interface attributes of the MIM-8T1 and the MIM-8T1-F MIM-8T1/MIM-8T1-FIntroduction MIM-8T1 module MIM-8T1-F module Description of the LEDs on the MIM-8T1/MIM-8T1-F panel MIM-8T1 panel E2-to-E1 demultiplex. E23 and E12 discussed here represent Accessing of E3 traffic when working in E3 modeSmaller than or equal to 128, when working in CE3 mode MIM-1CE3 Module Description of the LEDs on the MIM-1CE3 panel MIM-1CT3 Module Interface attributes of MIM-1CT3 Accessing of T3 traffic when working in T3 modeMIM-1CT3 panel is shown in the following figure Following table describes the LEDs on the MIM-1CT3 panel MIM-4BSE Module Description of the LEDs on the MIM-1CT3 panelInterface attributes of the MIM-4BSE Jumper settings of the MIM-4BSE example Following table describes how to set jumpers Set the jumpers on the MIM-4BSE Jumper settings & description Default LEDs on the MIM-4BSE panel Following table describes the LEDs on the module panel MIM-1G.SHDSL Interface attributes of MIM-1G.SHDSL moduleAttribute MIM-1G.SHDSL module Interface module MIM-1AMM MIM-1AMM/MIM-1AS MIM-1ASLInterface Cable Pstn network LED Following table describes the LEDs on the panels Whereas MIM-1ASM/MIM-1ASL modules should be connected with 25km, the interface will be unable to receive signalsMIM-1AE3 Module Interface Optical Fiber Description of the LEDs on the MIM-1AE3 panel Following table describes the LEDs on the MIM-1AE3 panel Interface attributes of MIM-1AT3 module MIM-1AT3 ModuleMIM-1AT3 panel is shown in the following figure Following table describes the LEDs on the MIM-1AT3 panel Description of the LEDs on the MIM-1AT3 panel MIM-1POS Module MIM-1POS Following table describes the LEDs on the MIM-1POS panelInterface attributes of the MIM-1POS Description of the LEDs on the MIM-1POS panel MIM-2FXS/MIM-2FXO/ MIM-2E&M and MIM-4FXS/MIM-4FXO/ MIM-4E&M MIM-2FXS/MIM-2FXO/MIM-2E&MMIM-4FXS/MIM-4FXO/MIM-4E&M MIM-2FXS panel Interface cable of FXS/FXO modules Interface cable of E&M modulesDescription of the LEDs on voice MIM panels RING0 RING1 TIP1 TIP0 Pinouts of E&M interface cable Bell V 4-wire MIM-HNDE module features Feature DescriptionMIM-HNDE Module MIM-2VE1 Module Troubleshooting Description of the LEDs on the MIM-2VE1 panel Following table describes the LEDs on the MIM-2VE1 panelMIM-2VE1 module is 1U in height, occupying two slots Interface attributes of MIM-2VE1 75-ohm-to-120-ohm adapter with BNC connector Module as needed Voice signalsVPM module is installed on the main board of MIM-2VT1 MIM-2VT1 Module Following table describes the LEDs on the MIM-2VT1 panel MIM-2VT1 module is 1U in height, occupying two slotsDescription of the LEDs on the MIM-2VT1 panel Interface attributes of MIM-1VE1 MIM-1VE1 Module Following table describes the LEDs on the MIM-1VE1 panel MIM-1VE1 module is 1U in height, occupying two slotsDescription of the LEDs on the MIM-1VE1 panel Twisted pair cable, you can use network interface connector MIM-1VT1 Module VoIP systemInterface attributes of MIM-1VT1 Following table describes the LEDs on the MIM-1VT1 panel MIM-1VT1 module is 1U in height, occupying two slotsDescription of the LEDs on the MIM-1VT1 panel MIM-16FSW/MIM-16FSW-PoE/DMIM-24FSW/DMIM-24FSW-PoE Attribute OE module PoE module MIM-16FSW/MIM-16FSW-P DMIM-24FSW/DMIM-24FS LED status Description MIM-16FSW/MIM-16FSW-PoE panel Interface Cable Interface attributes of the MIM-IMA-4E1/ MIM-IMA-8E1 Connecting Ethernet electrical cableMIM-IMA-4E1/MIM-IM 8E1 Module Attribute 75-ohm 120-ohm Description of the LEDs on the IMA-4E1/IMA-8E1 panel Cable MIM-IMA-4T1 MIM-IMA-8T1 MIM-IMA-4T1/MIM-IM8T1 Module Interface attributes of MIM-IMA-4T1/MIM-IMA-8T1 MIM-IMA-8T1 panel MIM-2BSV/MIM-4BSV Interface attributes of MIM-2BSV/MIM-4BSVAttribute MIM-2BSV module MIM-4BSV module Description of the LEDs on the MIM-2BSV/MIM-4BSV panel Following figure illustrates the MIM-4BSV panel Crossover Isdn S/T cable MIM-1CPOS Module Interface attributes of the MIM-1CPOSE/MIM-1CPOST moduleMIM-1CPOSE/MIM-1CPOST There are many types of fiber-optic connectors, such as FC round fiber-optic connector with screw threadLEDs on the MIM-1CPOSE/MIM-1CPOST panel MIM-1SHL-4W MIM-1SHL-4W ModuleOptical Fiber Interface attributes of the MIM-1SHL-4W LEDs on the MIM-1SHL-4W panel Following table describes the LEDs on the MIM-1SHL-4W panel Auto-sensing at a rate of 10 Mbps or 100 Mbps XMIM-16FSW/XMIM-2 4FSWMIM-1SHL-4W and the other end to Dslam through Pstn XMIM-24FSW support the following functions Interfaces, which are usually used on hubs and LAN Switches Interface LEDs shows the XMIM-16FSW panelLEDs of the XMIM-16FSW/XMIM-24FSW FE port Ethernet cable Multifunctional Interface Modules FIC-1FE/FIC-2FE/FIC-4F FIC-1FE/FIC-2FE/FIC-4FE interface attributesFIC-1FE FIC-2FE FIC-4FE Following figure illustrates an FIC-2FE panel Following figure illustrates an FIC-4FE panelLEDs on the FIC-1FE/FIC-2FE/FIC-4FE panel Making Ethernet cables FIC-1GBE/FIC-2GBE Interface attributes of the FIC-1GBE/FIC-2GBE LEDs on the FIC-1GBE/FIC-2GBE panelFIC-1GBE FIC-2GBE FIC-1GEF/FIC-2GEF Interface attributes of the FIC-1GEF/FIC-2GEFFIC-1GEF FIC-2GEF LEDs on the FIC-1GEF/ FIC-2GEF panel FIC-1GEF panel FIC-2SAE/FIC-4SAE/FIC -8SAE DTE and DCE Interface attributes of the FIC-2SAE/FIC-4SAE/FIC-8SAE24 RS232 Max. transmission Baud rate bps Segment DTE DCE LEDs on the FIC-2SAE/FIC-4SAE panel Following figure shows the FIC-8SAE panel DCE cable RS449 DTE cable Introduction Functions FIC-8ASE/FIC-16ASE FIC-8ASE FIC-16ASE Interface attributes of the FIC-8ASE/ FIC-16ASE Low-End-and-Mid-Range Series Routers Cable Manual Dumb terminal cables, you can make on site by reference to Interface attributes of the FIC-E1 and FIC-E1-F cards Following figure illustrates the FIC-2E1 panel Following figure illustrates the FIC-4E1-F panel Following figure illustrates the FIC-4E1 panelFollowing figure illustrates the FIC-1E1-F panel Following figure illustrates the FIC-2E1-F panel E1 120-ohm balanced twisted-pair cable LEDs on the FIC-E1 and FIC-E1-F panels Interface cable of the FIC-4E1/FIC-4E1-F Addition, you are available with 75-ohm-to-120-ohm adapters FIC-4E1/FIC-4E1-F by default, they are not provided Addition, you are available with 75-ohm-to-120-ohm adaptersFIC-1E1/F Card IC-1E1-F FIC-2E1/FIC-2E1-F FIC-4E1/FIC-4E1-F Setting DIP switches on the FIC-E1/FIC-E1-F cards End Connecting the interface cable of the FIC-4E1/FIC-4E1-F FIC-8E1/FIC-8E1-FIntroduction FIC-8E1 FIC-8E1 120-ohm panel Interface attributes of the FIC-8E1/FIC-8E1-F card LEDs on the FIC-8E1/FIC-8E1-F panels FIC-1T1-F/FIC-2T1-F/FIC-4T1-F Following figure illustrates the FIC-2T1 panel Following figure illustrates the FIC-4T1 panelInterface attributes of the FIC-T1/FIC-T1-F cards Following figure illustrates the FIC-1T1-F panel Following figure illustrates the FIC-2T1-F panelFollowing figure illustrates the FIC-4T1-F panel LEDs on the FIC-T1 and FIC-T1-F panels FIC-8T1/FIC-8T1-F Introduction FIC-8T1LEDs on the FIC-8T1 and FIC-8T1-F panels LEDs on FIC-8T1 and FIC-8T1-F panels FIC-8T1 panel FIC-1CE3 Represent the demultiplex processFIC-1CE3 interface attributes LEDs on the FIC-1CE3 panel FIC-1CE3 panel FIC-1CT3 interface attributes FIC-1CT3 FIC-4BSE LEDs on the FIC-1CT3 panelInterface attributes of the FIC-4BSE Jumper settings of the FIC-4BSE example Set the jumpers on the FIC-4BSE LEDs on the FIC-4BSE panel FIC-4BSE panel FIC-1AE3 FIC-1AE3Following table describes the LEDs on the FIC-1AE3 panel Interface attributes of the FIC-1AE3 LEDs on the FIC-1AE3 panel FIC-1AT3 FIC-1AT3 Following table describes the LEDs on the FIC-1AT3 panelInterface attributes of the FIC-1AT3 LEDs on the FIC-1AT3 panel Loopback FIC-1AT3 and another end to the Rx port on another deviceFIC-1AT3 and another end to the Tx port on another device Status LEDs on the ATM card panels Following figure illustrates the FIC-1ATM-OC3SM panelFollowing figure illustrates the FIC-1ATM-OC3SML panel Interface attributes of the ATM cards FIC-1G.SHDSL Interface attributes of the FIC-1G.SHDSLFIC-1G.SHDSL LEDs on the FIC-1G.SHDSL panel FIC-1POS FIC-1POS Following table describes the LEDs on the FIC-1POS panelInterface attributes of the FIC-1POS LEDs on the FIC-1POS panel 4E&M FIC-2FXS/FIC-2FXO/FIC2E&M FIC-4FXS/FIC-4FXO/FIC FIC-2FXO/FIC-4FXO Following figure illustrates the FIC-2FXO panelFollowing figure illustrates the FIC-2E&M panel Following figure illustrates the FIC-4FXS panel Interface cables for FIC-E&M cards Following figure illustrates the FIC-4FXO panelFollowing figure illustrates the FIC-4E&M panel Interface cables for the FIC-FXS/FIC-FXO cards PBX Router side Signal at switch side Bell RJ-45 Pin Wire Connecting the FIC-2E&M/FIC-4E&M card on site FIC-HNDESelf-made E&M interface cable by the router side LEDs on the FIC-HNDE Troubleshooting by reading the LED behaviorsFollowing table describes the LEDs on the FIC-HNDE panel Interface attributes of the FIC-HNDE Interface attributes of FIC-2VE1 FIC-2VE1 Description of the LEDs on FIC-2VE1 panel FIC-2VE1 panel Connecting the Interface Cable FIC-2VT1 Interface attributes of FIC-2VT1FIC-2VT1 panel is shown in the following figure Description of the LEDs on FIC-2VT1 panel Description of the LEDs on FIC-1VE1 panel FIC-1VE1Interface attributes of FIC-1VE1 FIC-1VE1 panel is shown in the following figure Description of the LEDs on FIC-1VE1 panel FIC-1VT1 VPM module is installed on the main board of FIC-1VT1 Description of the LEDs on FIC-1VT1 panel Interface attributes of FIC-1VT1 FIC-16FSW/FIC-16FSW- PoE/DFIC-24FSW/DFIC- 24FSW-PoE 16FSW-PoE Attribute Module DFIC-24FSW/DFIC-24FSW-PoE module FIC-16FSW/FIC FIC-16FSW/FIC-16FSW-PoE panel Interface Cable FIC-IMA-8E1 FIC-IMA-4E1/FIC-IMA-8Interface attributes of the FIC-IMA-4E1/FIC-IMA-8E1 FIC-IMA-4E1 LEDs on the FIC-IMA-4E1/FIC-IMA-8E1 panel 75-ohm FIC-IMA-4E1 panel 75-ohm 8E1 conversion cable FIC-IMA-4T1/FIC-IMA-8 Interface attributes of the FIC-IMA-4T1/FIC-IMA-8T1FIC-IMA-4T1 FIC-IMA-8T1 LEDs on the FIC-IMA-4T1/FIC-IMA-8T1 panel FIC-IMA-8T1 panel FIC-1SHL-4W Interface attributes of the FIC-1SHL-4WFIC-1SHL-4W LEDs on the FIC-1SHL-4W panel FIC-1CPOSFollowing table describes the LEDs on the FIC-1SHL-4W panel FIC-1SHL-4W and the other end to Dslam through Pstn FIC-1CPOSE/FIC-1CPOST Interface attributes of the FIC-1CPOSE/FIC-1CPOST LEDs on the FIC-1CPOSE/FIC-1CPOST panel Following figure illustrates the FIC-1CPOST panel FIC-2BSV/FIC-4BSV FIC-2BSV FIC-4BSV Following figure illustrates the FIC-4BSV panelInterface attributes of the FIC-2BSV/FIC-4BSV LEDs on the FIC-2BSV/FIC-4BSV panel Connecting the Interface Cable Description of LEDs on the FIC-24FXS panel FIC-24FXSFollowing figure illustrates the FIC-24FXS panel Interface attributes of the FIC-24FXS card FIC-24FXS conversion cable Description of LEDs on the DFIC-24FXO24FXS panel DFIC-24FXO24FXSFollowing figure illustrates the DFIC-24FXO24FXS panel Interface attributes of the DFIC-24FXO24FXS module DFIC-24FXO24FXS Flexible Interface Cards Follow these steps to remove the Ande card Ande ModuleFollowing table describes the LEDs on the panel Removing Ande card Snde Module Installing Ande card Snde Card Installing/RemovingInstalling Snde card Vcpm Module Interface attributes of the Vcpm module Installing Vcpm cardFollowing table describes the LEDs on the main board Removing Vcpm card Router installed with no RTV-SIC-1E1/T1 module Router installed with RTV-SIC-1E1/T1 module ESM/VCPM Module Interface card 20-20 20-40 50-40 Type 20-21 SIC/DSIC Purchase GuideSupported and ⋅ means Not supported SIC/DSIC options 30-60 50-60 MIM/DMIM Purchase GuideMIM/DMIM options 30-16 MIM-2FXS ⋅ MIM-4FXS ⋅ MIM-2FXO ⋅ MIM-4FXO ⋅ MIM-4BSE ⋅ MIM-1CPOSE ⋅ MIM-1CPOST ⋅ MIM-IMA-4T1 ⋅ MIM-IMA-8T1 ⋅MIM-1SHL-4W ⋅ MIM-2BSV ⋅ MIM-4BSV ⋅ FIC/DFIC Purchase Guide FIC/DFIC optionsFIC-1E1-F FIC-2E1-F FIC-4E1-F ESM-ANDE ESM-SNDE Vcpm ESM/VPM/VCPMPurchase Guide FIC-1SHL-4W FIC-2BSV FIC-4BSV FIC-24FXS VPM32 VPM24 VPM16 VPM8 ESM/VPM/VCPM options

FIC-8E1/FIC-8E1-F 171

The following table describes the LEDs on the card panels:

Table 117 LEDs on the FIC-8E1/FIC-8E1-F panels

LED

LINK

ACTIVE

Figure 209 75-ohm 8E1 conversion cable

Figure 210 120-ohm 8E1 conversion cable