2

www.protekdevices.com

05072.R2 1/03

CPE 80

&

MB 80

INSTALLATION INSTRUCTIONS

Maximum transient protection requires a good

ground system. This consists of a common

bonded or ground system, which interconnects AC

power and data line grounds. A single ground

connection is sufficient. However, it is more

important that the ground be a low impedance path

to the earth. A good earth connection is

necessary for lightning transient threat conditions.

Connections are usually best using a ground strap

where the cross-sectional area of the ground

connection is maximized. The ground connection

is made through the green AC power ground wire or

to a known earth ground system. If a ground wire

is used, it is recommended that it is a #14

stranded wire. A low impedence ground is

important to minimize a ground voltage potential

rise that may cause ground bounce within the

system or equipment.

MB 80 INSTALLATION INSTRUCTIONS

1. Select a suitable mounting location within 10

meters of the protected equipment. An enclosure

is recommended to protect against dust and

moisture.

2. Mount the board using the stand-offs and #8

screws provided.

3. Connect wires to appropriate terminals as show

in Figures 1 and 2. The ground wire MUST be kept

on the unprotected side of the board.

4. Insert protected boards. Be certain to insert

boards in the correct position as shown on the MB

80.

CPE 80 INSTALLATION INSTRUCTIONS

1. Select a suitable mounting location within 10

meters of the protected equipment.

2. Remove the cover and install retainer

assembly in holes. Do not tighten gland nut

bushing. See cable retainer assembly detail in

Figure 1.

3. Install base on a flat surface using #8 screws

provided.

4. Insert wires through cable retainer assemblies

and connect to appropriate terminals as shown in

Figures 1 and 2. The ground wire MUST enter the

enclosure ONLY through the unprotected side.

5. After completion of wiring, hand tighten gland

nut bushing.

6. Insert protector boards. Be certain to insert

boards in the correct position as shown on the

printed circuit board.

7. Replace cover and tighten cover mounting

screws.

TYPICAL WIRING FORMAT FOR ONE 4 WIRE RS EIA

STANDARD DATA LINE PRODUCTS

Figure 1

Example of ProTek 15 pin protection board, such as 232B, 485B and TEL185B

2AP

4AP

3AP

Peripheral

Equipment

Connect to CPU or

PROTECTED SIDE

4FP

3FP

2FP

2GP

3GP

4GP

2HP

3HP

4HP

2CP

3CP

4CP

2DP

3DP

4DP

4EP

3EP

2EP

Peripheral

2AP

3AP

4AP

4BP

3BP

2BP

PROTECTED SIDE

Connect to CPU or

Equipment

GROUND LUG

Orient Board as Shown

Orient Board as Shown

Orient Board as Shown

1HP

4HU

3HU

2HU

1HU

4GU

3GU

2GU

2DU

Orient Board as Shown

Orient Board as Shown

Orient Board as Shown

1GP

1EP

1FP

1GU

2FU

3FU

4FU

1EU

2EU

3EU

4EU

4DU

3DU

1FU

Orient Board as Shown

Orient Board as Shown

1DP

1BP

1CP

1DU

4CU

3CU

2CU

1BU

2BU

3BU

4BU

4AU

3AU

1CU

Connect to

External

Data Lines

UNPROTECTED SIDE

1AP

R

2AU

1AU

GROUND LUG

Orient Board as Shown

Data Lines

External

Connect to

UNPROTECTED SIDE

1AP

1BP

1AU

2AU

1BU

3AU

4AU

GROUND LUG

To Common Equipment-Ground Point AWG 6-10

Wire

Cover Bolt

Mounting Screws

4 Wires per Data Line

Inside Mouting Nut

To Outside World

Data Line Cable

Gland Nut

Retaining Nut

Nylon Washer

To Common Equipment-Ground Point AWG 6-10 Wire

To Protected

Equipment

4 Wires per

Data Line

CPE & MB 80 WIRING CONFIGURATION

Figure 2

COPYRIGHT © ProTek Devices 2005

SPECIFICATIONS: ProTek reserves the right to change the electrical and or mechanical characteristics described herein without notice (except JEDEC).

DESIGN CHANGES: ProTek reserves the right to discontinue product lines without notice, and that the final judgement concerning selection and

specifications is the buyer’s and that in furnishing engineering and technical assistance, ProTek assumes no responsibility with respect to the selection or

specifications of such products.

ProTek Devices

2929 South Fair Lane, Tempe, AZ 85282

Tel: 602-431-8101 Fax: 602-431-2288