Null modem adapters can also be used at the end of a straight-through serial cable to cross the lines. To enable handshaking between the two devices, the Request to Send (RTS) pin of one device must be connected to the Clear to Send (CTS) pin of the other device, and the Data Set Ready (DSR) pin is connected to the Data Terminal Ready (DTR) pin of the other. For this to work, the Transmit (TxD) pin of one device needs to be connected to the Receive (RxD) pin of the other device, and vice versa. Simple Null Modem CableĪ Null Modem or "crossover" cable is used to connect to DTE devices together. The StarTech MXT100FF is an example of a straight-through cable. The transmit and receive lines are not cross-connected in this case, hence the name. Simple Straight Through CableĪ straight-through or "one to one" cable is used to connect a DTE device (PC) to a DCE device (modem or other communications device). FOR SALE CAB-SS-2626X-3CISCO STYLE CROSSOVER CABLE Used to Connect Devices.
#CISCO SMART SERIAL DTE DCE CROSSOVER CABLE PC#
DTE normally refers to the serial port on a PC or terminal, while DCE refers to a modem or other type of communications device.ĭepending on the type of device on each end of the line, you either need a straight-through or a null-modem ("crossover") cable in order to communicate. SMART SERIAL DTE DCE Back to Back Cable 4 Cisco 3FT Crossover FREE SHIPPING USA - 12.06. Not compatible with the following series: 1900, 2900, 4000. Compatible with the following series: 1800, 2800.
This is used to connect two serial ports together in a Cisco CCNA, CCNP & CCIE certification lab to simulate a WAN connection. NoProductList Price (USD)Our Price1CABSSV35MT100.5028.00 (72 OFF)Buy Now2CABX21MT100.0010.00 (90 OFF)Buy Now3CABX21FC100.0010. Cisco Smart Serial Crossover Cable 3 CAB-SS. Build back-to-back router connections, CCIE lab setups and frame relay simluations with the right cable and a manageable length. This also called a DTE/DCE crossover cable or DB60 to DB60. This DTE Male to DCE Male Smart Serial Crossover Cable will connect two WIC-2T, WIC-2A/S, HWIC-2T, and HWIC-2AS WAN Interface cards together in back-to-back fashion. This DTE Male to DCE Male Smart Serial Crossover Cable will connect two Smart Serial WAN Interface cards together in back-to-back fashion. The RS-232 specification defines two types of serial devices, DTE and DCE. DTE/DCE Back to Back DB60 Crossover Cable. The 26-PIN Smart Serial cable is used to connect to Cisco WAN Interface Cards including HWIC-2A/S, HWIC-4A/S, HWIC-2T, HWIC-4T, WIC-2T and WIC-2A/S. The CAB-SS-2626X is ten feet in length and will allow ou to connect Smart Serial interface cards back to back. Use this Smart Serial Crsossover cable to connect to routers, WIC and HWIC cards. This crossover cable work with popular router models 2801, 2811, 2821. Cisco Smart Serial Crossover Cable, 6, CAB-SS-2626X-6. Straight Through Serial CableĬrossover or "Null Modem" vs. EDIMS 3FT Length Router Cable CAB-SS-2626X Dte dce Smart Serial Cable For Cisco Router.
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