Patton electronics 1000P User manual

USER

MANUAL

MODEL 1000P

Non-Powered Short

Haul Modem

Part #07M1000PA

Doc. #022031UA

Revised 2/17/98

SALES OFFICE

(301) 975-1000

TECHNICAL SUPPORT

(301) 975-1007

http://www.patton.com

CERTIFIED

An ISO-9001

Certified Company

RADIO FREQUENCY INTERFERENCE STATEMENT

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

not used in accordance with this manual, may cause interference to radio

communications. It has been tested and found to comply with the limits for a

Class A computing device pursuant to Subpart J of Part 15 of FCC rules,

which are designed to provide reasonable protection against such interference

when 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 be required to correct the interference.

If this unit is used on a DTE/DCE which requires use of shielded cables for

compliance with FCC Part 15, then use of a filtered-pin connector may be

required to maintain FCC compliance.

1.0 SPECIFICATIONS

Operating

Environment: 32 to 112 F (0 to 45 C), 0 to 95%

relative humidity

Dimensions: 2.20" x 1.75" x .75"

Weight:

Power: Powered from RS-232C Connector

(+12V DTR/DSR), 6.3 mA)

These units derive power from a terminal or computer. The following

signals must be available at the RS-232 connector:

DCE Configuration of the 1000P when connected to a DTE:

• The - and + voltage is taken from pins 2, 4, 9, and 20.

DTE Configuration of the 1000P when connected to a DCE:

• The - and + voltage is taken from pins 3, 5, 6, 8, or 9.

NOTE:

When power is removed from the DCE or DTE to which the Model

1000P is connected, the 1000P can no longer send a signal to the

remote receiver. Under this condition, the idled cable is susceptible

to noise reception. The remote receiver may output erroneous

data bits as a result of noise.

Date Rates: 19,200 bps (according to the RS-

232 interface)

Transmission Format: Asynchronous

Transmission Mode: Full duplex

Connectors - RS-232: 1000PM - DB-25 male

1000PMRJ11 - DB-25 male

1000PMRJ45 - DB-25 male

1000PF - DB-25 female

1000PFRJ11 - DB-25 female

1000PFRJ45 - DB-25 female

Connectors - Line: 1000PM - strain relief

1000PMRJ11 - RJ11 (6 wire)

1000PMRJ45 - RJ45 (8 wire)

1000PF - strain relief

1000PFRJ11 - RJ11 (6 wire)

1000PFRJ45 - RJ45 (8 wire)

Surge Protection: Compliant with IEC 801.5 level 2,

1kV (Model 222NS Only)

Factory Switch Setting: DCE; data is received from the

remote short range modem via

RX+ and RX-, and is sent to the

DTE from the Model 222N via pin 3

of the RS-232 interface; (the RS-

232 interface is the DB-25

connector closest to the DTE/DCE

switch).

Cable Type: 4-wire, unloaded, customer-owned

twisted pair cable with DC continuity

RS-232 Signals:

2.0 DESCRIPTION

The Model 1000P Asynchronous Short Range Modem uses the latest

surface mount technology to attain high quality short range modem

performance in a low profile package. The unit operates full duplex at data

rates to 19.2 Kbps over 2 twisted pair. Requiring no AC power or batteries, the

Model 1000 supports distances to 17 miles (27.2km).

With an externally accessible DCE/DTE switch, the Model 1000P allows

easy connection to any device without opening the unit. Three enclosure

options allow terminations to be via RJ-11, RJ-45 or terminal blocks. A

unique strain relief prevents thin twisted pairs from breaking or pulling loose.

The Model 1000P uses the latest in bi-directional, clamping, transient

suppressors to protect itself and connected equipment against harmful transient

discharges. For surge handling capability, the Model 1000P is compliant with

IEC 801.5 level 2, 1kV.

PIN CIRCUIT DESCRIPTION SIGNAL TYPE DIRECTION

1 AA Protective Ground Ground

2 BA Transmitted Data Data To DCE

3 BB Receive Data Data From DCE

4 CA Request to Send Control To DCE

5 CB Clear to Send Control From DCE

6 CC Data Set Ready Control From DCE

7 AB Signal Ground Ground

8 CF Data Carrier Detect Control From DCE

9 DC Voltage

20 CD Data Terminal Ready Control To DCE

Pins 1 and 7 are tied together

Pins 4 and 5 are tied together

Pins 6, 8 and 20 are tied together

Table 1. Model 1000P Transmission Distances

The Model 1000P has the option of being configured as either DCE or DTE

devices. Set the switch located on the top of the printed circuit board to the DCE or

DTE position

NOTE: You do not have to open the plastic case to change the switch setting.

DCE DTE

These distances are for a noiseless environment with

20% or less of peak-to-peak gross distortion. Distances

and rates listed are 1000P to 1000P

DATA

RATE

(BPS)

Wire Gauge

19 AWG

( 0.9 mm) 24 AWG

( 0.5 mm) 26 AWG

( 0.4 mm)

19,200 6.2(9.9) 3.7(5.9) 1.2(1.9)

9,600 7.5(12.0) 4.9(7.8) 2.5(4.0)

4,800 8.7(13.9) 5.6(9.0) 3.7(5.9)

2,400 11.8(18.9) 8.0(12.8) 4.9(7.8)

1,200 17.0(27.2) 11.8(18.9) 8.0(12.8)

Figure 1. Model 1000P DCE/DTE Switch

The Model 1000P meets the requirements for FCC Part 15 (RFI limits for Class A

peripheral devices).

3.0 INSTALLATION

All versions of the Model 1000P plug directly into the back of a terminal

or computer. This eliminates the need for an RS-232C data cable. No power

is required from an external source because the unit is powered entirely by the

terminal or computer’s control and data signals.

The Model 1000P has an interface connection at each end: one for Data

Terminal Equipment (DTE) or Data Communications Equipment (DCE), and

one for the telephone line (twisted pairs). To install the unit, perform the

following steps.

1. Connect the twisted pair cable (customer-supplied) to the 4-screw

terminal block (Model 1000PM or 1000PF), RJ11 jack (Model

1000PMRJ11 or 1000PFRJ11), or RJ45 jack (Model 1000PMRJ45

or 1000PFRJ45). Refer to Figure 3 for the associated pin

assignments. End-to-End connections should be matched as shown

in Figure 6.

2. When the 1000P has been cabled connect the telephone interface

cable to the telephone outlet.

DCE DTE

DCE/DTE Switch

RS-232

Connection (Male

or Female)

Surge

Suppressors

Screws for

Terminal Block

Figure 2. Components of Model 1000P

Figure 3. Pin Assignments for RJ11 Connectors

PINS

FEMALE

2 (RXB)

3 (TXB)

4 (TXA)

5 (RXA)

1 2 3 4 5 6

Figure 4. Pin Assignments for RJ45 Connectors

PINS

FEMALE MALE

1 2 3 4 5 6 7 8

Figure 5. Four-Wire, Full-Duplex, Point-to-Point Link

MALE

3 (RXB)

4 (TXB)

5 (TXA)

6 (RXA)

TXA

TXB

RXA

RXB

RXA

RXB

TXA

TXB

3. If the unit is to be used as a DTE, set the externally accessible

DCE/DTE switch to the DTE position. If the unit is to be used as a

DCE, set the externally accessible switch to the DCE position. (If

you are uncertain as to how your equipment operates, try each of the

settings to see which one works in your application.

4. Plug the unit’s interface connector end into the RS-232C connector

on the DTE or DCE, and tighten the connector mounting screws.

For examples of typical applications of the Model 1000P with DTE or

DCE devices, refer to Figure 6, below.

Figure 6. Typical Short Range Modem Applications

Model 1000Ps

Customer-Owned

Unloaded Twisted Pair

Cable

Customer-Owned

Unloaded Twisted Pair

Cable

Printer

Async MiniComputer Async Terminal

Model 1000Ps

- NOTES

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