Black Box High-Speed SME V.35-M34 Bedienungsanleitung

CUSTOMER

SUPPORT

INFORMATION

Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX

FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746

Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018

Web site: www.blackbox.com • E-mail: [email protected]

JUNE 1994

ME107A ME108A

ME107AE ME108AE

ME107C ME108C

High-Speed SME V.35-M34

High-Speed SME V.35-DB25

CTS RXD PWR RLSD RTS TXD

FEDERAL COMMUNICATIONS COMMISSION

AND

INDUSTRY CANADA

RADIO FREQUENCY INTERFERENCE STATEMENTS

This equipment generates, uses, and can radiate radio frequency energy

and if not installed and used properly, that is, in strict accordance with the

manufacturer’s instructions, may cause interference to radio communication.

It has been tested and found to comply with the limits for a Class A

computing device in accordance with the specifications in Subpart J of

Part 15 of FCC rules, which are designed to provide reasonable protection

against such interference when the equipment is operated in a commercial

environment. Operation of this equipment in a residential area is likely to

cause interference, in which case the user at his own expense will be required

to take whatever measures may be necessary to correct the interference.

Changes or modifications not expressly approved by the party responsible

for compliance could void the user’s authority to operate the equipment.

This digital apparatus does not exceed the Class A limits for radio noise emission from

digital apparatus set out in the Radio Interference Regulation of Industry Canada.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites

applicables aux appareils numériques de classe A prescrites dans le Règlement sur le

brouillage radioélectrique publié par Industrie Canada.

TRADEMARKS USED IN THIS MANUAL

Molex is a registered trademark of Molex Incorporated.

UL is a registered trademark of Underwriters Laboratories

Incorporated.

Any other trademarks mentioned in this manual are acknowledged to be the property

of the trademark owners.

HIGH-SPEED SME V.35

Contents

Chapter Page

1. Specifications ............................................................................................... 1

2. Introduction ................................................................................................. 3

3. Configuration ............................................................................................... 5

4. Installation .................................................................................................... 8

5. Troubleshooting .......................................................................................... 9

5.1 Calling Black Box .................................................................................. 9

5.2 Shipping and Packaging ....................................................................... 9

Appendix: Connector Pinouts ......................................................................... 10

CHAPTER 1: Specifications

System

Requirements — ME107C, ME108C only: RM060 or compatible rack

Interface — ME107 models: CCITT V.35;

ME108 models: CCITT V.35 pinned as EIA RS-530

Protocol — Synchronous

Clock Source — Internal or external from either DTE

Operation — Full- or half-duplex

Data Rate — Either any speed up to 2.048 Mbps that evenly

divides 4.096 Mbps or any speed up to 1.544 Mbps

that evenly divides 3.088 Mbps (data-rate regime

and individual data rate user-selectable)

Maximum

Distance — Up to 2000 ft. (609.6 m) on each side, depending on

cable quality and data rate

User Controls — (8) Internal:

(2) 6-position DIP switches for data-rate selection;

(6) Jumpers: (1) Grounds Isolated/Connected,

(2) CTS Delay, (2) Clock Source, (1) Data-Rate

Regime

Indicators — (6) Front-mounted LEDs: TXD, RXD, RTS, CTS,

RLSD, PWR

Connectors — ME107C, ME108C only: 3-position card-edge type

for rack power;

ME107 models only: (2) 34-position M-block female

for data communication;

1. Specifications

HIGH-SPEED SME V.35

ME108 models only: (2) DB25 female for data

communication;

All models: (1) 5-pin Molex®male for low-voltage

AC power

Leads Supported — See the Appendix

Temperature — 32 to 122˚ F (0 to 50˚ C)

Humidity — 0 to 95% noncondensing

Enclosure — All standalone models: Plastic

Power — ME107A, ME108A: From wallmount power supply

PS146:

Input Range: 104 to 127 VAC, 45 to 65 Hz;

Nominal Input: 115 VAC, 60 Hz at 100 mA;

Output: 17 VAC CT at 700 mA;

ME107AE, ME108AE: From wallmount power supply

PS145E:

Input Range: 207 to 253 VAC, 45 to 65 Hz;

Nominal Input: 230 VAC, 50 Hz at 50 mA;

Output: 17 VAC CT at 700 mA;

ME107C, ME108C: From rack’s power-supply

interface;

All models: Consumption: 7.5 to 13 watts

Size — Standalone models: 2.1"H x 8.8"W x 11.5"D

(5.3 x 22.4 x 29.2 cm);

Card models: 7.5"H x 1.3"W x 11"D

(19.1 x 3.2 x 27.9 cm)

Weight — Standalone models: 2 lb. (0.9 kg);

Card models: 0.9 lb. (0.4 kg)

CHAPTER 2: Introduction

With a High-Speed Synchronous Modem Eliminator (SME) V.35, you can

establish communication between two synchronous DTE devices (mainframes,

controllers, etc.) at greater distances than would be possible without an

SME—and you don’t have to buy CSU/DSUs, modems, or line drivers.

You can configure your SME by setting its internal straps (jumpers) and

switches. (User-configurable options include clocking, data rate, and CTS

delays.) Installing the unit is even easier: You’ll run cable from the devices to

connectors J1 and J2 on the SME’s rear panel, then plug in the SME’s power

cord.

The SME has six front-panel LED indicators:

• TXD (Transmit Data) lights when the device connected to J1 is sending

data.

• RXD (Receive Data) lights when the device connected to J1 is receiving

data.

• RTS (Request to Send) lights when the device connected to J1 raises the

RTS signal and the SME in turn raises the RLSD signal on J2.

• CTS (Clear to Send) lights when the device connected to J1 is clear to

send. (That is, when the SME raises CTS on J1 after the device on J1

raises RTS.)

• RLSD (Received Line Signal Detect) lights when the device connected

to J2 raises RTS and the SME in turn raises RLSD on J1.

• PWR (Power) lights when the unit is getting power (that is, when the

power supply is working and is plugged into a working outlet).

The SME has three rear-panel connectors. One is the power-supply connector

P1. The other two connectors are the data-communication ports J1 and J2.

On the High-Speed SME V.35-M34 (ME107) models, J1 and J2 are 34-pin

M-block female connectors, which is the original standard for the CCITT V.35

interface. On the High-Speed SME V.35-DB25 (ME108) models, J1 and J2 are

DB25 female connectors, which is an emerging standard for V.35 pinned

according to the EIA RS-530 interface.

2. Introduction

HIGH-SPEED SME V.35

The SMEs come with appropiate power supplies. The ME107A and ME108A

models come with UL®and CSA listed power supply PS146, which operates

from 115 VAC/60 Hz power. The ME107AE and ME108AE models come

with UL®, CSA, and VDE listed power supply PS145E, which operates from

230 VAC/50 Hz power. Both power supplies provide the SME with 17 VAC

center-tapped at 0.7 amps. Their output connectors are indexed to help

prevent incorrect insertion.

The maximum length of cable you can run between the SME and either

of the devices you want to attach to it depends on:

• the cabling standards of the interface that your SME uses.

• the data rate you select (higher data rates often require shorter cable

runs).

• noise sources between the SME and the device (cable run too close to

noise sources will not be able to successfully carry data).

Other concerns not mentioned here might also affect the maximum distance

attainable in your application. For additional information, refer to the

published standards for your SME’s interface, CCITT V.35.

Figure 2-1, below, shows a typical SME application.

Length of Cable;

422 Interface

specified

MAINFRAME

OR MINI

SME-422 REMOTE

CONTROLLER

MINI, OR

MAINFRAME

Figure 2-1. Typical SME Application.

HIGH-SPEED

SME V.35

V.35

CHAPTER 3: Configuration

This chapter contains charts and diagrams that will help you configure your

High-Speed SME V.35:

• Table 3-1 on the next page lists the possible settings of the individual

straps (jumpers) inside the SME. You’ll set these straps to configure some

of the SME’s features.

NOTE

Clock timing is supplied on the SME’s ports in the form of a “send

timing” signal (SCT, derived from that port’s clock source) and a “receive

timing” signal (SCR, derived from the other port’s clock source). Straps

W4 and W5, which determine how the SME gets its clock for each port,

are among those described in Table 3-1.

In the descriptions of these straps, the A position is called “internal,”

the B position is call “recovered,” and the C position is called “external.”

When a port’s timing is internal, the clock is the SME’s internal clock

signal. When a port’s timing is external, the SME gets the clock from that

port’s “terminal timing” (SCTE) signal. When a port’s timing is recovered,

the SME gets the clock from the opposite port’s “terminal timing” (SCTE)

signal.

For most applications both ports’ straps would be set to A (internal

clock). A small number of applications (those in which one device

supplies the timing across the line) would require one strap set to B and

the other set to C. Extremely few if any applications would require both

straps set to C, or one strap set to C and the other to A. The SME will not

work at all if both straps are set to B, or if one strap is set to B and the

other to A.

• Table 3-2 on page 7 lists the possible settings of the data-rate switches S1

and S2 inside each standard SME. Move the positions of these DIP

switches to the setting that matches the data rate used in your system.

• Figure 3-1 on page 7 shows the layout of the SME’s printed-circuit board.

3. Configuration

HIGH-SPEED SME V.35

Table 3-1. Strap Settings for High-Speed SME V.35

STRAP FUNCTION

W1 You can use this strap to tie the Frame Ground (V.35 Pin A, RS-530 Pin

1) and Signal Grounds (V.35 Pin B, RS-530 Pins 7 and 23) together. The

unit comes from the factory without the grounds tied together. (See the

Appendix for interface/connector pinouts.)

W2 Determines the clear-to-send (CTS) delay on port J2:

Position A = 50 ms (the factory-default setting)

Position B = 10 ms

Position C = 0 ms

W3 Determines the clear-to-send (CTS) delay on port J1:

Position A = 50 ms (the factory-default setting)

Position B = 10 ms

Position C = 0 ms

W4 Determines the clock source for port J1 (that is, the source of the signals

on J1’s SCT [Serial Clock Transmit] pins and J2’s SCR [Serial Clock

Receive] pins—see the Appendix for pinouts):

In the EXT position, timing is external (from J1’s SCTE [Serial Clock

Transmit External] pins).

In the RCVD position, timing is recovered (from J2’s SCTE [Serial

Clock Transmit External] pins).

In the INT position, timing is internal (from the SME’s internal clock).

The unit is shipped from the factory in the “INT,” internal, position.

See the note on the previous page.

W5 Determines the clock source for port J2 (that is, the source of the signals

on J2’s SCT [Serial Clock Transmit] pins and J1’s SCR [Serial Clock

Receive] pins—see the Appendix for pinouts):

In the EXT position, timing is external (from J2’s SCTE [Serial Clock

Transmit External] pins).

In the RCVD position, timing is recovered (from J1’s SCTE [Serial

Clock Transmit External] pins).

In the INT position, timing is internal (from the SME’s internal clock).

The unit is shipped from the factory in the “INT,” internal, position.

See the note on the previous page.

W6 Determines clock range (that is, which set of data rates the SME can

be set for with switches S1 and S2; see Table 3-2 on the next page).

CHAPTER 3: Configuration

Table 3-2. Selected Settings of the High-Speed SME V-35’s Data-Rate

Switches*

DATA SWITCH S1 SWITCH S2 STRAP

RATE POSITIONS POSITIONS W6

(bps) 123456 123456

1,544,000 OFF OFF OFF OFF OFF OFF ON OFF OFF OFF OFF OFF A-B

772,000 OFF OFF OFF OFF OFF OFF ON ON OFF OFF OFF OFF A-B

2,048,000 OFF OFF OFF OFF OFF OFF ON OFF OFF OFF OFF OFF B-C

1,024,000 OFF OFF OFF OFF OFF OFF ON ON OFF OFF OFF OFF B-C

512,000 OFF OFF OFF OFF OFF OFF ON ON ON OFF OFF OFF B-C

256,000 OFF OFF OFF OFF OFF OFF ON ON ON ON OFF OFF B-C

128,000 OFF OFF OFF OFF OFF OFF ON ON ON ON ON OFF B-C

64,000 OFF OFF OFF OFF OFF OFF ON ON ON ON ON ON B-C

32,000 ON OFF OFF OFF OFF OFF ON ON ON ON ON ON B-C

* Do not set all positions of S1 and S2 to OFF. If you would like to operate at a data rate other

than those shown here, call Black Box. If your SME can support your desired data rate, technical

support personnel can help you determine how to set these switches. If standard SMEs can’t

support your data rate, Black Box might be able to give you a quote on a custom unit.

Figure 3-1. Layout of the High-Speed SME V.35’s circuit board.

C42

R50

R46

R45

U13

C9 C5

C11

C10

C32

CR1

W1/RX

C20

C35

C19

U13

C21

C33

R14

C22

U9 C34

C37

R44

R43

C31

R47

R49

R48

EXT

INT

RCV

EXT

INT

RCV

C41

C23

R41

R42

C18

U6 C39

C36

C16

C44

C43

C42

C45

U5 C38

R10

R20

R18

R19

R23

R22

R21

R26

R25

R24

R30

R28

R29

R33

R32

R31

R27

R34

C24

R17

R16

R15

R13

R11

R12

C26

U16

C30

C40

C14

C29

C15 VR1

C27 RN1 RN2 RN3

S1S2

C28

C17

R40

C13

C12

C25

U15

R37

R36

R39

DS2

CTS

DS6

RXD

DS1

POWER

DS3

RLSD

DS4

RTS

DS5

TXD

KK K K K K

R35

R38

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