USER
MANUAL
MODEL 1000P
Non-Powered Short
Haul Modem
CERTIFIED
An ISO-9001
Certified Company
Part #07M1000PA
Doc. #022031UA
Revised 2/17/98
SALES OFFICE
(301) 975-1000
TECHNICAL SUPPORT
(301) 975-1007
http://www.patton.com
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
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)
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.
1
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 RS232 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
2
RS-232 Signals:
Table 1. Model 1000P Transmission Distances
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
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.
DATA
RATE
(BPS)
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)
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
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.
19 AWG
( 0.9 mm)
DCE DTE
Wire Gauge
24 AWG
( 0.5 mm)
26 AWG
( 0.4 mm)
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.
3
Figure 1. Model 1000P DCE/DTE Switch
4
The Model 1000P meets the requirements for FCC Part 15 (RFI limits for Class A
peripheral devices).
RS-232
Connection (Male
or Female)
DCE/DTE Switch
Surge
Suppressors
FEMALE
PINS
1 2 3 4 5 6
MALE
2 (RXB)
3 (TXB)
4 (TXA)
5 (RXA)
DCE DTE
Screws for
Terminal Block
Figure 2. Components of Model 1000P
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.
Figure 3. Pin Assignments for RJ11 Connectors
FEMALE
PINS
1 2 3 4 5 6 7 8
MALE
Figure 4. Pin Assignments for RJ45 Connectors
TXA
TXB
RXA
RXB
RXA
RXB
TXA
TXB
Figure 5. Four-Wire, Full-Duplex, Point-to-Point Link
3 (RXB)
4 (TXB)
5 (TXA)
6 (RXA)
2. When the 1000P has been cabled connect the telephone interface
cable to the telephone outlet.
5
6
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.
Model 1000Ps
Customer-Owned
Unloaded Twisted Pair
Cable
Async MiniComputer
Model 1000Ps
Async Terminal
- NOTES
Customer-Owned
PC
Unloaded Twisted Pair
Cable
Figure 6. Typical Short Range Modem Applications
7
Printer
8
Loading...