Specifications

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BayTech Addendum Publication No. Z140A186

Reference BayTech Manual Publication No. U140E121-03 Page 1 of 10

Addendum to Owners Manual

DS73 & DS73TP REMOTE NETWORK COMMUNICATIONS MODULE

1 GENERAL INFORMATION

The DS73 and DS73TP are network communications modules that support remote access to TCP/IP ethernet

networks by using the DS-Series Data Switch equipped with a modem module. Remote users can dial into the DS-

Series unit and connect to network hosts from anywhere at any time. Remote workstations and PC’s connect to the

DS73 or DS73TP using a dial-up PPP sessions. This offers dial-up users a low-cost IP network link suitable for

remote access to the network.

The DS73 will automatically detect either 10BASE2 (BNC connector) or 10BASE-T (8-pin modular connector) network

activity. The DS73 supports Ethernet II and Ethernet SNAP frame types automatically, eliminating concern about

DLC compatibility. No configuration or jumpers are necessary.

2 SPECIFICATIONS

PROTOCOLS: PPP, TCP/IP, ARP & ICMP

NETWORK INTERFACE: Ethernet; IEEE 802.3 compliant, 10BASE2 (thin coax,

BNC) and 10BASE-T (twisted pair, RJ-45). Automatic media and frame selection.

FRAME TYPES: Ethernet II & SNAP

SPEEDS: 10 mbps

BUFFER SIZE: 256 KB

SECURITY: Password protected log-on procedure

INDICATORS: Green LED - Link integrity

Red LED - RX/TX

Red LED - Connection status (CX)

POWER REQUIREMENTS: Supplied by DS-Series base unit.

@ 25 degrees, +5 VDC, 300 mA

ENVIRONMENT:

Operating Temperature Range: 0° to 70° C.

Storage Temperature Range: -40° to 80° C.

Humidity: 5 to 95% RH.

Summary of content (11 pages)

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Addendum to Owners Manual DS73 & DS73TP REMOTE NETWORK COMMUNICATIONS MODULE 1 GENERAL INFORMATION The DS73 and DS73TP are network communications modules that support remote access to TCP/IP ethernet networks by using the DS-Series Data Switch equipped with a modem module. Remote users can dial into the DSSeries unit and connect to network hosts from anywhere at any time. Remote workstations and PC’s connect to the DS73 or DS73TP using a dial-up PPP sessions.
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3 CABLING CAUTION: Power should be removed anytime cables are installed. 3.1 10BASE2 (COAX) CONNECTION The 10BASE2 port of the DS73 module connects to any BNC connector on the network cable. BayTech provides a T-connector for this purpose. Please see the figure below. 3.2 10BASE-T If your network uses 10BASE-T, 45 cable between the RJ-45 port modular port is defined as DTE 3 is RD+, and Pin 6 is RD-). Most straight cable type.
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4.2 DS73 and DS73TP CONNECTION The DS73 and DS73TP module requires a physical network connection to perform PPP sessions with the network host. The DS73 supports 10BASE2 or 10BASE-T Ethernet connections with Ethernet II or 802.3 SNAP framing. Use the following procedure to access the DS73 modules through the DS-Series Host module: 1. Open a session to the DS73 module using any workstation TELNET client or ephemeral.
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NOTE: These commands are illustrated using the default port select code ($BT). DS73 COMMAND SUMMARY Command Description $BTm,p Request to connect to peripheral module "m" port "p". If module m is operating in full duplex mode, full duplex communication is established when connection is made. Otherwise, the connection is for output only (from DS73 to the selected module/port). $BTm Request to connect to module "m".
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4.6 MESSAGES The DS73 generates various messages in response to certain commands/situations as described in the table below. DS73 MESSAGES Message Description Module "m" not installed Issued when a user tries to connect to a peripheral module or port that was not reported as installed to the DS73. Verify that correct module number was entered. Check module operation on power-up to verify normal initialization.
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DS73 MESSAGES Message Description m = module number (1 to 16), p = port number (1 to 4) BayTech Addendum Publication No. Z140A186 Reference BayTech Manual Publication No.
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4.7 LED INDICATORS Each DS73 has three LED indicators on the rear panel and four LED indicators on the front panel of the base unit corresponding to the module slot where the DS73 is installed (i.e., Module 1, Module 2, etc.). The LEDs on the module rear panel are marked as LINK, RX/TX and CX. The green LINK LED illuminates if the DS73 has a good 10BASE-T connection. Failure of this LED to illuminate indicates a physical connection problem only if twisted pair cabling is being used.
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4.7.2 OPERATION LED INDICATIONS The DS73 only utilizes the first and the fourth LEDs of the base unit module location during normal operation as described below. DS73 OPERATION DIAGNOSTIC LED DESCRIPTION LED Description 1 Active Connection. This LED will remain illuminated for about 30 seconds after the last network connection is terminated. 4 (flashing) 5 Cabling Error. This LED will flash continuously when a transmission attempt fails from a cable or a connection malfunction.
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5.1 MAIN CONFIGURATION MENU The DS73 will respond to the receiving of $CONFIG with an identification block and a menu of the available configuration options similar to the following: DS-Series DS73 Unit: 1 Module: 1 F 1.05, copyright (c) 1995 Bay Technical Associates IP Address: Subnet Mask: Gateway Address: Select Code: Ethernet Address: Client Msg/Login: Unit Memory (MB) Active Connections: 0.0.0.0 0.0.0.0 0.0.0.0 $BT 00.C0.48.12.34.56 enabled/enabled 2 2 IP Address............... 1 Subnet Mask...
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5.5 SELECT CODE By responding to the Enter selection: message at the end of the main configuration menu with "4" (Select Code), you can change the port select code to any ASCII character string from 1 to 8 characters. The DS73 will respond with: Enter Select Code (8 chars max): Type the desired port select code followed by . The DS73 saves the new port select code permanently in the non-volatile memory and return to the main configuration menu. NOTE: The select code is case sensitive.
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6 GETTING STARTED Before the DS73 and the DS-Series data switch can be used, there are a few parameters which must be configured by the user. First time power-up: When the DS73 is first powered up, it will cycle through its diagnostics until it finds that it has not been programmed with an IP address or subnet mask. At this point, it should flash its front panel LEDs 3 & 4. An IP address and subnet mask are minimum requirements for module operation.