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RemoteMonitoring Module

M-3904B

PROTECTIVE

RELAYS

Provides monitoring of the M-3425A IntegratedProtection System

Relays

Solves Relay Panel Mounting Space Problems

Can be used to provide access to relay information

in remote Control Rooms 2 by 20 Character Backlit Liquid Crystal Display (LCD)

User-Friendly Menu System

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M-3904B Remote Monitor Module

B-1268 Cable Connector KitEach unit includes a 25 foot B-1268 Cable and Connector Kit. The Remote Monitor Module can interface with theprotection relay through either the RS-232 or RS-485 port on the relay. Cable orientation and pin assignments areillustrated in Figure 2. The relay Com Port must be configured to util ize the MODBUS protocol and have the CommDelay setting for COM2 set to zero.

RJ-45

1 8

RJ-45

654

RXDTXDRETURN

3 CTS21

TXD-TXD+

87

RXD+RXD-

Rear Terminal Block

of the M-3425A

325

RS-232 RJ45 RS-232RJ45(FEMALE)

281

281

TXD-RXD+TXD+

77RXD-

(MALE)

281

7TXD-RXD+TXD+

RXD-

6 RXD

5 TXD4 RETURN

YELLOW

GREENRED

ORANGEWHITEBLUE

BROWNGREENBLACKRED

WHITE

[RS-485][RS-232]

TXD-

RXD+ TXD+

RXD-

Figure 2 B-1268 Universal Connecting Cable

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External ConnectionsM-3904B external connection points are illustrated in Figure 3.

REAR VIEW

CL

SIDE VIEW

4.00

[101.2]

6.00 [152.4]

FRONT VIEW

[40.6]

1.60

3.00 [76.2] 0.16[4.1]

[44.7]

1.76

shown for ref.plug & cableShielded RJ-45

Maximum depth

behind the FRONTof any panel

1.50[38.1]Ground lug &

power cableshown for ref.

Shielded

green wire to ground

(Panel)

6-32UNC stud,

BOTTOM VIEW

4 places

1.46 [37]

Dimensions are in inches [mm].

1 2 TARGETRESET

M-3904B

Figure 3 Remote Monitor Module Overall Dimensions

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3.50 0.01

[88.9 0.3]

3.70 0.03

[94.0 0.8]

5.10 0.030

[129.5 0.8

5.60 0.01

[142.2 0.3]

0.172 0.01 [4.4 0.3]

diameter, 4 holes

R 0.08 [2.0mm] maximum,

4 places

Connect Mounting Stud(s) toControl Panel Earth Ground.

NOTES:

1. Dimensions are in inches [mm].

2. Holes are symmetrically located on the center of the cutout.

3. Maximum panel thickness is 0.125 [3.2mm].

4. Minimum panel thickness is 0.029 [1.5mm].

Figure 4 Cutout Dimensions

Power Supply Requirements

+12 to +30 V dc (24 V dc 1.2A dedicated Linear Power Supply recommended)

Consumption 2.5 Watts typical, 3 Watts maximum

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PhysicalSize: 6.0 wide x 4.0 high x 1.77 deep (15.24 cm x 10.16 cm x 4.5 cm)

Mounting: Flush-mounted, by 4 pressure-type fasteners on a 0.059 to 0.125 (1.5 to 3.2 mm) thick panel. Panelcutout dimensions are shown in Figure 4.

Approximate Weight: 1 lbs (0.45 kg)

Patent & Warranty

The M-3904B Remote Monitor Module is covered by an 18 month warranty from date of shipment.

For additional information, please refer to the included Maple Systems, Inc. OIT 3165 data sheet No. 0901-0061,Rev. 00 (05/09).

Specification subject to change without notice.

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Documents

M-3904B-SP.pdf