Patton electronics 2720/B User Manual

Also see for NetLink 2720/B: Specification sheet

Contents

5 63.0 CONFIGURATIONThe Model 2720 features configuration capability via hardwareDIP switches or a software control port. This section describes all pos-sible hardware and software switch configurations of the NetLink-T1™.3.1 DIP SWITCH CONFIGURATIONThe Model 2720 has two eight bit DIP switches that allow configu-ration for a wide range of applications. The switches are externallyaccessable by removing the plate on the bottom side of the unit.Figure 1 (below) shows the location of the DIP switches on the bottomof the printed circuit board.DIP Switches S1 and S2 can be configured as either “On” or “Off”.Figure 2 (below) shows the orientation of the DIP switches with respectto ON/OFF positions. Default position and descriptions for SwitchesS1 and S2 are provided on pages 6-10.2.0 GENERAL INFORMATIONThank you for your purchase of this Patton Electronics product. Thisproduct has been thoroughly inspected and tested and is warranted for OneYear parts and labor. If any questions arise during installation or use of theunit, contact Patton Electronics Technical Services at (301) 975-1007.2.1 FEATURES• Terminates T1/FT1 Circuits over a 4-Wire RJ-48C interface• Connects to standard CPE Serial Interfaces• Common Framed nx56/64 rates up to 1.536 Mbps• Unstructured Rates at 1.544 Mbps• D4 or ESF Framing Modes• Supports AMI or B8ZS/B7ZS Line Coding• Configuration via Software Control Port or Internal DIP Switches• Six Easy-to-Read LED Indicators Monitor Data & Diagnostics• Internal, External or Network Clocking• Also Operates as a High-Speed Point-to-Point Modem• Made in USA2.2 GENERAL PRODUCT DESCRIPTIONTheNetLink-T1™ Model 2720 Series are single port T1/FT1CSU/DSUs that provide high-speed WAN connectivity. Plugging directly intothe serial WAN port of a switch, router or multiplexer, the NetLink-T1™ pro-vides T1 or FT1 access at connection data rates of 1.544 Mbps, nx64, andnx56 (n=1 to 24 channels). The Netlink-T1™ is an excellent choice whenterminating leased line services, Frame Relay backbones, internet accessas well as LAN-to-LAN services.The Netlink-T1™ provides digital access to a local WAN serviceprovider or directly between two facilities over a dedicated 4-Wire circuit.WAN bandwidth, framing and coding options are programmed via externallyaccessible DIP switches or via a VT-100 type terminal using the rear-mounted EIA-232 Control Port. Netlink-T1™ supports D4/ESF framingoptions and AMI/B8ZS/B7ZS line coding. Netlink-T1™ also supports a fullrange of system and diagnostic features that make system setup easy.The NetLink-T1™ provides T1 terminations over a modular RJ-48C jackand comply with jitter tolerance capabilities as specified in ANSI T1.403 andAT&T TR62411. External power options include 120VAC and universalinterface 100-240VAC. 48VDC and rack card versions are also available.Figure 1. Underside of Model 2720, Showing Location of DIP SwitchesFrontRearOFFS1S2ON1 2 3 4ON5 6 7 8Figure 2. Close up of DIP switches showing ON/OFF positions.