Patton electronics IM2RC/I-100B User Manual

USER MANUAL

MODEL IM2RC/I-100B

Ethernet Bridge Module

SALES OFFICE (301) 975-1000 TECHNICAL SUPPORT (301) 975-1007

Part# 07MIM2RC-I100B-UM Rev. A

Revised 11/26/10

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1.0 Warranty Information ................................................................. 3

1.1 Service.......................................................................................... 3

1.2 Safety When Working With Electricity .......................................... 4

2.0 General Information.................................................................... 6

2.1 Features........................................................................................ 6

2.2 Description.................................................................................... 6

2.3 Typical Application........................................................................ 7

3.0 PPP Operational Background.................................................... 8

3.1 Applications .................................................................................. 8

4.0 Configuration ............................................................................ 10

4.1 Connecting the Interface Driver Board ....................................... 11

5.0 Installation................................................................................. 12

5.1 The Model 1001R14 rack chassis .............................................. 12

The Rack Power Supply............................................................. 12

5.2 Installing the Rear IM2RC/I-100B Card and Front Function Card...

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5.3 Connecting to the 10/100Base-T Ethernet port.......................... 14

5.4 Connecting the Line Interface..................................................... 15

6.0 Operation................................................................................... 16

6.1 Operating Instructio ns................................................................. 16

6.2 Power-Up.................................................................................... 16

6.3 LED status Monitors ................................................................... 16

A

Specifications ........................................................................... 17

A.1 LAN Connection ......................................................................... 17

A.2 Line Connection .......................................................................... 17

A.3 Protocol ....................................................................................... 17

A.4 MAC Address Aging ................................................................... 17

A.5 On-Board Memory ...................................................................... 17

A.6 Interface ...................................................................................... 17

A.7 LED Indicators ............................................................................ 17

A.8 Power Consumption .................................................................... 17

A.9 Temperature Range .................................................................... 17

A.10 Dimensions ................................................................................. 17

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1.0 WARRANTY INFORMATION

Patton Electronics warrants all Model IM2RC/I-100B components to be free from defects, and will—at our option—repair or replace the product should it fail within one year from the first date of the shipment.

This warranty is lim ited to defect s in workman ship or mate rials, and do es not cover customer damage, abuse or unauthorized modification. If this product fails o r do es not p erforms as w arrante d, you r sole re cours e shal l be repair or replacem ent as des cr ibed above. Under no conditio n shall Patton Electronics be liable for any damages incurred by the use of this product. These da mages incl ude, but are no t limited to, the foll owing: lost profits, lost savings and incidental or consequential damages arising from the use of or inability to use this product. Patton Electronics spe- cifically disclaims all other warranties, expressed or implied, and the installation or use of this product shall be deemed an acceptance of these terms by the user.

1.1 SERVICE

All warranty and non-warranty repairs must be returned freight prepaid and insured to Patto n Elec tro nics. All returns must hav e a R et urn M ate rials Authorization number on the outside of the shipping container. This number may be obtained from Patton Electronics Technical Services at:

•Tel: +1 (301) 975-1007

•Email: support@patton.com

• URL: http://www.patton.com

Note Packages received without an RMA number will not be

accepted.

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1.2 SAFETY WHEN WORKING WITH ELECTRICITY

• Do not open the device when the power cord is connected. For systems without a power switch and without an external power adapter, line voltages are present within the device when the power cord is connected.

• For devices with an external power adapter, the power adapter shall be a listed Limited Power Source The mains outlet that is utilized to power the device shall be within 10 feet (3 meters) of the device, shall be easily accessible, and protected by a circuit breaker in compliance with local regulatory requirements.

• For AC powered devices, ensure that the power cable used meets all applicable standards for the country in which it is to be installed.

• For AC powered devices which have 3 conductor power plugs (L1, L2 & GND or Hot, Neutral & Safety/Protective Ground), the wall outlet (or socket) must have an earth ground.

• For DC powered devices, ensure that the interconnecting cables are rated for proper voltage, current, anticipated temperature, flammability, and mechanical serviceability.

• WAN, LAN & PSTN ports (connections) may have hazardous voltages present regardless of whether the device is powered ON or OFF. PSTN relates to interfaces such as telephone lines, FXS, FXO, DSL, xDSL, T1, E1, ISDN, Voice, etc. These are known as “hazardous network voltages” and to avoid electric shock use caution when working near these ports. When disconnecting cables for these ports, detach the far end connection first.

• Do not work on the device or connect or disconnect cables during periods of lightning activity.

WARNING

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This device contains no user serviceable parts. This device can only be repaired by qualified service personnel.

This device is NOT intended nor approved for connection to the PSTN. It is intended only for connection to customer premise equipment.

Electrostatic Discharge (ESD) can damage equipment and impair electrical circuitry. It occurs when electronic printed circuit cards are improperly handled and can result in complete or intermittent failures. Do the following to prevent ESD:

• Always follow ESD prevention procedures when removing and replacing cards.

• Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. Connect the clip to an unpainted surface of the chassis frame to safely channel unwanted ESD voltages to ground.

• To properly guard against ESD damage and shocks, the wrist strap and cord must operate effectively. If no wrist strap is available, ground yourself by touching the metal part of the chassis.

In accordance with the requirements of council directive 2002/96/EC on Waste of Electrical and Electronic Equipment (WEEE), ensure that at end-of-life you separate this product from other waste and scrap and deliver to the WEEE collection system in your country for recycling.

WARNING

CAUTION

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2.0 GENERAL INFORMATION

Thank you for your purchase of this Patton Electronics product. This product has been thoroughly inspected and tested and is warranted for One Year parts and labor. If any questions arise during in sta llation or use of this product, please contact Patton Electronics Technical Support at: (301) 975-1007.

2.1 FEATURES

• Installs in Patton’s NetLink Rack Systems

• Provides MAC level connection between two peered Ethernet LANs

• RJ-45 line connec tio n

• Operates transparently to higher level protocols such as TCP/IP, DECnet, NETBIOS and IPX

• PPP (RFC 1661) with Bridging Control Protocol (RFC 1638)

• No configuration necessary

• Automatically discovers, loads and deletes MAC addresses

• Modular 10/100Bas e-T co nne ction (RJ-45)

• Two LED indicators: status & link integrity

2.2 DESCRIPTION

The Patton IM2RC /I-100B, Ethernet Bri dge Module ins talls in th e NetLink Rack system to provide seamless Ethernet LAN extension. The Patton IM2RC/I-100B performs the bridging function between two physically separate Ethernet LANs at the MAC level. Operation of the Patton IM2RC/I-100B is transparent to higher network level protocols such as TCP/IP, DECnet, NETBIOS and IPX. The Model IM2RC/I-100B is 802.3 compliant and supports PPP (RFC 1661) with Bridging Control Protocol (RFC 1638).

Once installe d in the local Patt on NetLink rack, the Patton IM2RC/I-100 B works in a “ plug and p lay” m anner to fo rward LAN bro adcas ts , multic ast s and frames desti ne d fo r the peered Ethernet LAN at the remote end (the Patton base unit at the remote end must be equipped with an IM1/I module). Using the Patton IM2RC/I-100B in conjuction with a G.SHDSL front card (3088RC) or NTU (2701RC), peered Ethernet LANs can be linked over leased 2-wire or E1 circuits. The NTU features externally-accessible DIP switches, loopback diagnostics, SNMP/HTTP remote-management

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capabilities using RocketLink Plug ‘n’ Play, as well as in-band management.

2.3 TYPICAL APPLICATION

The Model IM2RC/I-100B is designed to plug directly into the rear of a Patton Electronics rack card modem (i .e. Model 3088RC or 2701RC). The Model IM2RC/I-100B is designed to be used as one of a pair of units. Figure 1 (below) illustrates a typical Model IM2RC/I-100B installation.

Figure 1. Typical Model IM2RC/I-100B application

4.6 Mbps

Leased Line

(Model 3088RC or 2701RC)

Rack-Mounted Ethernet

WAN Bridge Module

Remote/Satellite

Office

Patton Model 3088

LAN

Corporate

Headquarters

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3.0 PPP OPERATIONAL BACKGROUND

PPP is a protocol used for multi-plexed transport over a point-to-point link. PPP operates on all full duplex media, and is a symmetric peer-topeer protocol, which can be broken into three main components: 1. A standard method to encapsulate datagrams over serial links; 2. A Link Control Protocol (LCP) to establish, configure, and test the data-link connection; 3. A family of Network Control Protocols (NCPs) to establish and configure different network layer protocols.

In order to est abl is h c om mu nic ati ons ov er a poi nt-t o-po int link, each end of the PPP link must first announce its capabilities and agree on the parameters of the link’s operation. This exchange is facilitated through LCP Configure-Request packets.

Once the link has been established and optional facilities have been negotiated, PPP will attempt to establish a network protocol. PPP will use Network Control Protocol (NCP) to choose and configure one or more network layer protocols. Once each of the network layer protocols have been configured, datagrams from the established network layer protocol can be sent over the link. The link will remain configured for these communications until explicit LCP or NCP packets close the link down, or until some external event occurs.

The PPP Bridging Control Protocol (BCP), defined in RFC 1638, configures and enables/disables the bridge protocol on both ends of the pointto-point link. BCP uses the same packet exchange mechanism as the Link Control Protocol (LCP). BCP is a Network Cont rol Protocol of PPP, bridge packets may not be exchanged until PPP has reached the network layer protocol phase.

3.1 APPLICATIONS

In situations where a routed network requires connectivity to a remote Ethernet network, the interface on router can be configured as a PPP IP Half Bridge. The serial line to the remote bridge functions as Virtual Ethernet interface, effectively bridge functions as a Virtual Ethernet interface, effectively extending the routers serial port connection to the remote network. The bridge devi ce sends brid ge packet s (BPDU’ s) to the router’s serial interface. The router will receive the layer three address information and will forward these packets based on its IP address.

Figure 2 on page 9 shows a typical Cisco router with a serial interface configured as a PPP Half Bridge. The router serial interface uses a remote device that supports PPP bridging to functions as a node on the remote Ethernet ne twork. the seri al interface on the Cisc o will have an IP address on the same Ethernet subnet as the bridge.

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Figure 2. Cisco router with serial interface, configured as PPP Half Bridge

For example, the customer site is assigned the addresses 192.168.1.1 through 192.168.1.254. The address 192.168.1.1 is also the default gateway for the remote network. The above settings remove an y rou tin g/ forwarding intelligence from the CPE. The associated Cisco configuration will set serial interface (s0) to accommodate half bridging for the above ex ample.

Authentication is optional under PPP. In a point-to-point leased-line link, incoming custom er fa cilities are usuall y fi xe d in natu re, therefore authentication is generally not required. The IM2RC/I-100B does not require authentication. It also does not respond to authentication requests.

Some networking system s do not define network numbers in packets sent out over a network. If a packet does not have a specific destination network number, a router will assume that the packet is set up for the local segment and w il l no t forward it to any oth er su b-ne tw ork . How ev er, in cases where two devices need to communicate over the wide-area, bridging can be used to transport non-routable protocols.

Figure 3 illustrates transparent bridging between two routers over a serial interface (s0). Bridging will occur between the two Ethernet Interfaces on Router A (e0 and e1) and the two Ethern et Interface s on Router B (e0 and e1).

Figure 3. Transparent bridging between two routers over a serial link.

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4.0 CONFIGURATION

The Model IM2RC/I-100B module plugs into Patton’s 3088RC and 2701RC modems to provide Ethernet LAN extension. The IM2RC/I100B has no switches or jumpers and does not need to be configured. However, factors such as the type of medium, throughput across the link and clocking mode must be determined by the settings of the baseband modems. Please refer to your baseband modem (i.e. 3088RC and 2701RC) to make the following settings.

1. Bit Rate: The DTE rate setting of y our bas e unit corr esp onds to th e

throughput of yo ur IM2RC/I-100 B bridge modu le. Use higher speeds to allow maximum throughput to your extended LAN. Use lower speeds to limit the access of your extended LAN.

Note The IM2RC/I-100B only supports synchronous speeds.

2. Clocking Mode: Set the clocking modes on the base units so that

one unit is c onfigured for Internal clocki ng mode and the oth er unit is set for Receive Recover clocking mode.

3. When using the IM2RC/I-100B, DISABLE, the “Enable Loop from

DTE” Switch on the front function card (3088RC or 2701RC).

4. All other base u nit s ettings depe nd up on yo ur app licat ion an d on the

application medium (twisted pair or coaxial cable).

BASE UNIT CLOCK MODES

Unit “A” Unit “B”

Internal Clock Setting Receive/Recover Clock Setting

Note Unit “A” and Unit “B” are arbitrarily chosen. It does not mat-

ter which unit is “A”, and which is “B”.

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4.1 CONNECTING THE INTERFACE DRIVER BOARD

This package co nta ins an interfa ce driv er board that al lows y ou to co nfi gure your front function card for ethernet operation. Figure 4 shows the Interface Drive r Board connected to a Model 2701RC front func tion ca rd.

Figure 4. Model IM2RC/I-100B Driver Board mounted on Model 2701RC

Follow the instruc t ion s be low to con nec t the inte rfac e dri ver b oard to the front function card:

1. With the function card (such as 27 01RC, shown above) pull ed out of

the NetLink rack or clus terb ox cha ssis , loc ate the dri ver board to be replaced on the top of the base unit front card.

2. Lift the old interface board gently off of the printed circuit board.

3. Position the IM2RC/I-100 B driver bo ard on top of the func tion ca rd’ s

pc board with the sockets oriented toward the male pins. Please be sure the label marked FRONT <– is pointed toward the front of the function card (toward the LEDs).

4. Push the Interfa ce D ri ve r Board gently onto the soc ket a nd re-install

the function card into the rack or cluster system.

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5.0 INSTALLATION

This section describes the NetLink Model 1001R14 rack chassis. Included are inst allation in structions for the IM2RC/I-100B rear ca rd, plus ethernet and line interface connections to the IM2RC/I-100B card. Please refer to the appropriate function card (i.e. 3088RC) user manual to configure and install the function card.

5.1 THE MODEL 1001R14 RACK CHASSIS

The Model 1001R14 Rack Chassis (Figure 5) has fourteen short range modem card slots, plus its own power supply. Measuring only 3.5” high, the Model 1001R14 is designed to occupy only 2U in a 19” rack. Sturdy front handles allow the Model 1001R14 to be extracted and transported conveniently.

Figure 5. Model 1001R14 Rack Chassis with power supply

The Rack Power Supply

The Patton NetLin k rack sys tem is designed to allow single or redund ant (dual) power supplies. Using the same mid-plane architecture as the function/rear cards, the front function card and the power supply slide in from the front, while the re ar c ard a nd p ower e ntry mo dul es sli de in fro m the rear. They plug into one another in the middle of the rack . The fr ont card is then se cure d b y th um b sc rew s an d the rear card by conventi ona l metal sc rews..

There are no user-serviceable parts in the power supply section of the Model 1001R14. Voltage setting changes and fuse replacement should only be performed by qualified service personnel. Contact Patton Electronics Technical support at (301) 975-1007 for more information.

WARNING

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5.2 INSTALLING THE REAR IM2RC/I-100B CARD AND FRONT

FUNCTION CARD

The Model IM2RC/I-100B is a rear-mountable ethernet interface card that works with Patton Models 3088RC and 2701RC access products. The two cards meet inside the rack chassis and plug into each other by way of matin g 50 pin ca rd edge con nectors. Us e the follo wing st eps as a guideline for installing each Model IM2RC/I-100B and its function card

mate into the rack chassis:

1. Slide the IM2RC/I-100B rear ca rd in to the bac k of th e ch ass is along

the metal rails provided.

2. Secure the IM2RC/I-100B rear card using the metal screws pro-

vided.

3. Slide the front function card into the front of the chassis. It should

meet the IM2RC/I-100B rear card when it is almost all the way into the chassis.

4. Push the front card gently into the card-edge receptacle of the rear

card. It should “click” into place.

5. Secure the front card using the thumb screws.

The IM2RC/I-100B card contains sensitive integrated circuitry. Failure to ground yourself during installation may result in damage to the IM2RC/I-100B-100B card or the front function card.

CAUTION

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5.3 CONNECTING TO THE 10/100BASE-T ETHERNET PORT

The Model IM2 RC/I-10 0B prov ides line sid e conn ectio ns thro ugh a terminal block or through a RJ-45 connector. Figure 6 below shows the rear panel and the locations of the connectors.

Figure 6. IM2RC/I-100B Rear Panel

The IM2RC/I-100B Etherne t interface is des igned to connec t directly to a 10/100Base-T network. Figure 7 shows the signal/pin relationships on this interface. You may connect this port to a hub or PC using a straight through or crossover cable that is up to 330 feet long.

Figure 7. IM2RC/I-100B Ethernet Connector Pinout

RJ-45 Line Side

10/100-BaseT Connector

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5.4 CONNECTING THE LINE INTERFACE

The Model IM2RC/I - 100 B is to b e us ed with Patto n fu nc tion card access products (i.e. 3088RC) There are two essential requirements for connecting the line interface on Model IM2RC/I-100B:

1. These units work in pairs with one IM2RC/I-100B connected to

another IM2RC/I-100B over 2 or 4-Wire Twisted pair (2 or 4-Wire operation is determined by the front function card).

2. To function properly, the Model IM2RC/I-100B needs one or two

twisted pairs of metallic wire (two or four wire). The twisted pairs must be unconditioned, dry, metallic wire, between 19 (.9mm) and 26 AWG (.4mm) (Appendix B describes cable requirements). Standard dial-up telephone circuits, or leased circuits that run through signal equalization equipment, or standard, flat modular telephone type cable, are not acceptable.

Figure 8. RJ-45 Line Interface

Note Two-wire modems use RJ-45 pins 4 and 5 and 4-wire modems

use RJ-45 pins 3, 4, 5 and 6, as shown above. Refer to the Function Card User Manual for more details.

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6.0 OPERATION

Once the Model IM2RC/I-100B is installed, it should operate transparently. The following sections describes the power-up, general operating instructions, and the LED status monitors.

6.1 OPERATING INSTRUCTIONS

In order to operate, the Model IM2RC/I-100B must be installed in the rack unit. It also requires a 10/100Base-T connection. After power is applied, the IM2RC/I-100B automatically starts performing the bridging function without further user intervention. MAC addresses discovered are automatica lly lo aded into the MAC ad dres s t abl e. They are automatically dele ted from the MAC addr ess t able i f they expe rience an in activ ity of 8 minutes.

6.2 POWER-UP

The Model IM2RC/I-100B is a hot-swappable rear card that receives power from the NetLink rack power bus. Therefore, it is powered up as soon it is plugged into the rack and the rack power supply is turned on.

6.3 LED STATUS MONITORS

The Model IM2RC/I-100B features two LEDs that monitor the link and activity status of the 10/100BaseT interface. Figure 9 (below) shows the LEDs located directly beneath the RJ-45 jack.

Figure 9. IM2RC/I-100B Rear Panel, LED Locations

Activity LED Yellow

Link LED Green

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APPENDIX A

S PECIFICATIONS

A.1 LAN CONNECTION

RJ-45, 10/100Base-T, 802.3af Ethernet

A.2 LINE CONNECTION

RJ-45, female connector

A.3 PROTOCOL

PPP (RFC 1661) with Bridging Control Protocol (RFC3518)

A.4 MAC ADDRESS AGING

MAC addresses deleted after 6 minutes inactivity

A.5 ON-BOARD MEMORY

128MB DDR2 SDRAM; 16MB FLASH

A.6 INTER FACE

Card-edge connecti on to Patton mode ms

A.7 LED INDICATORS

(1) general status; (1) link integrity

A.8 POWER CONSUMPTION

200mA @ 12VDC, supplied by chassis power supply

A.9 TEMPERATURE RANGE

32 to 122ºF (0 to 50º C)

A.10 DIMENSIONS

2.04” x 3.24” (5.2 mm x 8.26 mm)

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NOTES

_______________________________________________________

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NOTES

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Patton Electronics Company

Patton electronics IM2RC/I-100B User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual