
Installation Instructions
MobileView Junction Box Cable
(Catalog Number 2727-MREY1)
English
The MobileView Junction Box Cable (2 meter/6.5 foot) is used for:
• MobileView Guard G750
• MobileView Machine Terminal MT750 
This cable connects the MobileView Connection Cable (2727-MRTxx) to the 
MobileView Junction Box (2727-MRJB2) if the junction box is mounted inside a 
cabinet.
Junction Box Cable Pinout Description
K1, 17-pin 
Female Circular 
Jack Pin #
1 red -->> 1 24V dc
2 black -->> 2 GND_IN
3 green-brown -->> 3 E-stop, circuit 1, positive*
4 white-gray -->> 4 E-stop, circuit 1, negative*
5 grey-pink -->> 5 E-stop, circuit 2, positive*
6 red-blue -->> 6 E-stop, circuit 2, negative*
7 brown -->> 7 Enabling switch, circuit 1, positive*
8 yellow -->> 8 Enabling switch, circuit 1, negative*
12 green -->> 12 Enabling switch, circuit 2, positive*
17 grey -->> 17 Enabling switch, circuit 2, negative*
9 - -->> 9 Not used 
10 - -->> 10 Not used 
11 violet -->> 11 Not used
13 blue -->> 13 TD+ (transmit)
14 white -->> 14 TD- (transmit)
15 orange -->> 15 RD+ (receive)
16 red -->> 16 RD-(receive)
* For connection to MobileView Guard G750 Terminals only.
Junction Box 
Cable Wire Color
K2, 17pin 
Male Circular 
Jack Pin#
Description
Publication 2727-IN011A-EN-P - May 2004

2   MobileView Junction Box Cable
Junction Box Cable Diagram
11
1
10
9
8
2
12
16
13
17
3
14
15
4
5
7
6
Dust cap provides 
protection when 
MobileView is not 
connected.
1
11
2
12
13
3
17
14
4
5
6
K1 K2
10
16
9
15
8
7
17-pin female circular jack  
mounts to enclosure.
2m (6.5 ft)
17-pin male circular jack  
mounts to junction box.
Connecting the MobileView MT750 or G750 Terminal to Junction Box
The following illustration shows how the Junction Box Cable (2727-MREY1) is used 
to connect the MobileView Terminal to the Junction Box (2727-MRJB2).
Publication 2727-IN011A-EN-P - May 2004

MobileView Junction Box Cable   3
MobileView Terminal
ESC
7 8 9
5 6
4
3
1 2
.
-
0
MobileView 
Connection Cable
Connector Cutout
25 +/- 0.1 mm 
(1.0 +/- 0.0039 in)
r 
o 
r
Run
Er
KETOP
Dust Cover
K1
25 +/- 0.1 mm 
(1.0 +/- 0.0039 in)
Control Cabinet
Power Supply, E-Stop, 
enabling switch
maximum wall 
thickness 5 mm (0.2 in)
K1
Server
Junction Box
Junction Box Cable
10 Base-T Connection 
to Ethernet Network
Minimum Bending Radius of Cable
Required minimum distance outside and inside the control cabinet
Minimum 130 mm (5.118 in) Minimum 100 mm (3.937 in)
Publication 2727-IN011A-EN-P - May 2004

Rockwell Automation Support
Rockwell Automation provides technical information on the web to assist you in 
using our products. At http://support.rockwellautomation.com, you can find 
technical manuals, a knowledge base of FAQs, technical and application notes, 
sample code and links to software service packs, and a MySupport feature that you 
can customize to make the best use of these tools.
For an additional level of technical phone support for installation, configuration and 
troubleshooting, we offer TechConnect Support programs. For more information, 
contact your local distributor or Rockwell Automation representative, or visit 
http://support.rockwellautomation.com.
Installation Assistance
If you experience a problem with a hardware module within the first 24 hours of 
installation, please review the information that's contained in this manual. You can 
also contact a special Customer Support number for initial help in getting your 
module up and running:
United States 1.440.646.3223
Outside United 
States
Monday – Friday, 8am – 5pm EST
Please contact your local Rockwell Automation representative for any 
technical support issues.
New Product Satisfaction Return
Rockwell tests all of our products to ensure that they are fully operational when 
shipped from the manufacturing facility. However, if your product is not 
functioning and needs to be returned:
United States Contact your distributor. You must provide a Customer Support case number 
Outside United 
States
Publication 2727-IN011A-EN-P - May 2004 PN 41061-350-01(1)
Supersedes Publication XXXX-X.X.X - Month Year Copyright © 2004 Rockwell Automation, Inc. All rights reserved. Printed in the U.S.A.
(see phone number above to obtain one) to your distributor in order to 
complete the return process.
Please contact your local Rockwell Automation representative for return 
procedure.