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BLACK BOX
®
®
NETWORK SERVICES
MARCH 2006
MT330A
G.703 NTU
w/10BaseT
a s e T
G .7 0 3 N T U w /1 0 B
T M
L in k
S ta tu s
1 0 B T
E 1
CUSTOMER
Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX
SUPPORT
FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
INFORMATION
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com
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Table of Contents
Related Manuals for Black Box MT330A
Summary of Contents for Black Box MT330A
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Page 1: Black Box
Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX SUPPORT FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 INFORMATION Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.com... -
Page 2: Ce Notice
G.703 NTU W/10BASET CE NOTICE The CE symbol on your Black Box equipment indicates that it is in compliance with the Electromagnetic Compatibility (EMC) directive and the Low Voltage Directive (LVD) of the European Union (EU). A Certificate of Compliance is available by contacting Technical Support. -
Page 3: Fcc Part 68
G.703 NTU W/10BASET FCC PART 68 The MT330A is not intended to be connected to the pub- lic telephone network. Caution TRADEMARKS USED IN THIS MANUAL All applied-for and registered trademarks are the property of their respective owners. NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY STATEMENT Instrucciones De Seguridad 1. - Page 4 G.703 NTU W/10BASET 11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en el instructivo de operación, o como se indique en el aparato. 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada.
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Page 5: Table Of Contents
G.703 NTU W/10BASET CONTENTS CE Notice ....................2 Radio and TV Interference ................2 FCC Part 68 ....................3 Trademarks Used In This Manual ............... 3 Normas Oficiales Mexicanas (NOM) Electrical Safety Statement ..... 3 General Information ..................7 1.1 Features ....................7 1.2 Description .................. - Page 6 G.703 NTU W/10BASET A.5 Line Framing ..................20 A.6 Clocking ...................20 A.7 Distance ....................20 Ethernet 10Base-T Specifications ............. 21 B.8 DTE Interface ...................21 B.9 DTE Data Rates ................21 B.10 LAN Connection ................21 B.11 Protocol .....................21 B.12 MAC Address Table Size ..............21 B.13 MAC Address Aging ................21 B.14 Frame Buffer ..................21 B.15 Frame Latency ..................21...
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Page 7: General Information
The MT330A supports PPP (RFC 1661) and BCP (RFC 1638). The MT330A is a 10Base-T bridge that operates over G.703 lines. It uses MAC learning and forwarding to provide seamless LAN-to-LAN connectivity. As a result, corporate enterprises can connect their servers to a pair of NTUs and auto- matically forward data packets that are meant for the remote network. -
Page 8: Ppp Operational Background
G.703 NTU W/10BASET 2. 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-to-peer protocol, which can be divided into the following main components: A standard method to encapsulate datagrams over serial links •... - Page 9 Bridge. The router serial interface connects to the WAN via a MT311A (V.35) E1 NTU and to the remote MT330A with support for PPP bridging. The MT330A functions as a node on the remote Ethernet network. The serial interface on the router will have an IP address on the same Ethernet subnet as the bridge.
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Page 10: Configuration
DIP switch configurations of the MT330A. 3.4 DIP Switch Configurations The MT330A has an internal DIP switch that enables configuration for a wide range of applications. The DIP switch is accessed from the underside. Figure 2 shows the location of the DIP switches on the bottom of the printed circuit board. -
Page 11: Switch S1 Settings
S1-2 Line Loopback (toward Off = LLB disabled E1 line) On = LLB enabled Note The MT330A, when in line loopback mode, will loop the network line and return any trafic received on the E1 line to the sending device at the remote end. - Page 12 G.703 NTU W/10BASET Options: HDB3, AMI HDB3. In this line coding, the transmitter substitutes a deliberate bipolar viola- • tion when excessive zeros in the data stream are detected. The receiver recog- nizes these special violations and decodes them as zeros. This method enables the network to meet minimum pulse density requirements.
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Page 13: Installation
The Ethernet 10Base-T port is configured as DTE (Data Terminal Equipment). • If the MT330A is to connect to another DTE device such as a 10Base-T net- work interface card in a PC, refer to “Connecting the 10Base-T Ethernet port to a PC (DTE)”... - Page 14 L i n Line (120 ohm) (75 ohm) e r n E t h (75 ohm) Ethernet Power Figure 4. MT330A rear panel 4.5.10 C ONNECTING OAXIAL ABLE TO THE G.703 N ETWORK Refer to Figure 4 to make the proper connections.
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Page 15: Network
ONNECTING THE THERNET PORT TO A To connect the MT330A to another DTE device such as a 10Base-T network interface card, construct a 10Base-T crossover cable and connect the wires as shown in Figure 6 below and Figure 7 on page 16. -
Page 16: Connecting The 10Base-T Ethernet Port To A Hub
This power supply connects to the MT330A by means of a barrel jack on the rear panel. Many international power cords are available for the uni- versal power supply. Note The MT330A powers up as soon as it is plugged into an AC outlet— there is no power switch. -
Page 17: Operation
G.703 NTU W/10BASET 5. Operation When the MT330A has been properly configured and installed, it should operate transparently. This section describes power-up, LED status monitors, and the built-in loopback test modes. 5.6 Power-up Before applying power to the MT330A, please review section “Power Connec- tion”... - Page 18 G.703 NTU W/10BASET Table 2: LED descriptions Description E1 Link (Active Green) Solid green (On) indicates that the end to end E1 Link is up, signifying that the link is active. The E1 Link LED is Off when the link is down. 10BT Link (Active Green) Solid green indicates that the 10Base-T Ethernet interface has detected a valid SQE heartbeat,...
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Page 19: Operating Line Loopback (Ll)
G.703 NTU W/10BASET 5.8 Operating Line Loopback (LL) The Line Loopback (LL) test checks the operation of the local MT330A, and is performed separately on each unit. G.703 NTU MT330A 2 Mbps G.703 Ethernet Network Clocking Network Device Cable Span... -
Page 20: Specifications
G.703 NTU W/10BASET A. G.703 Specifications A.1 Network Data Rate 2.048 Mbps A.2 Network Connector RJ-48C/Dual Coax BNC A.3 Nominal Impedance 75/120 ohm A.4 Line Coding Selectable AMI or HDB3 A.5 Line Framing G.703 (Unframed) A.6 Clocking Internal or Network (Receive Recover) A.7 Distance Maximum 6,000 ft (1.6 km) On 24 AWG cable... -
Page 21: B.8 Dte Interface
G.703 NTU W/10BASET B. Ethernet 10Base-T Specifications B.8 DTE Interface 10Base-T on RJ-45F B.9 DTE Data Rates 10 Mbps B.10 LAN Connection RJ-45, 10Base-T, 802.3 Ethernet B.11 Protocol PPP (RFC 1661) with Bridging Control (RFC 1638) B.12 MAC Address Table Size 4096 entries B.13 MAC Address Aging MAC addresses deleted after 8 minutes of inactivity... -
Page 22: B.19 Power Supply
G.703 NTU W/10BASET B.19 Power Supply 5 VDC external power supply 100–240VAC, 50–60Hz, 0.4A B.20 Humidity Up to 90% non-condensing B.21 Temperature 0–50°C (32–122°F) B.22 Dimensions 3.5L x 2.1W x 0.78H in.(9.0L x 5.3W x 2.0H cm) - Page 23 G.703 NTU W/10BASET Notes ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________...
- Page 24 BLACK BOX ® ® NETWORK SERVICES © Copyright 2006. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...
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