Pinouts For J3A/J3B; Pinouts For J4; Echelon Interface (J4) Characteristics; Table 1-4. Pinouts For J3A/J3B - Siemens A53457 Installation & Maintenance

DESCRIPTION
1.3.1.3

Pinouts for J3A/J3B

The following table shows the pinouts for J3A and J3B.
J3A Pin No. J3B Pin No.
1
2
3
6
4, 5
7, 8
1.3.1.4

Pinouts for J4

The following table shows the pinouts for J4.
Pin Number
1
2
3
4
5
6
1.3.1.5

Echelon Interface (J4) Characteristics

• Data Transfer Rate:
Transmission Medium:
•
• Topology:
Number of Nodes:
•
• Termination:
• Network Length:
Because of the nature of the Echelon LAN interface, make sure all devices
connected to the LAN are contained entirely within the same signal case or
bungalow.
Document No.: COM-00-05-16
Version: C.1

Table 1-4. Pinouts for J3A/J3B

Name
1 TX+
2 TX-
3 RX+
6 RX-
N/C +12VDC
N/C Digital Ground

Table 1-5. Pinouts for J4

TP LAN – Twisted wire A (not polarity specific)
TP LAN – Twisted wire B (not polarity specific)
Not used
N – Battery input – negative terminal
Not used
B – Battery input – positive terminal
1.25 Mbps
Level 4 (NEMA) twisted pair cable, shielded or unshielded, solid or
stranded.
Bus (direct daisy chain).
No more than 8 (including any terminations used) in any 16-meter
(53 feet) length of transmission cable, 16 maximum total per
network segment.
Normally not needed
53 feet (16m) recommended maximum, 426 feet (130m) absolute
maximum per network segment (with certain restrictions).
I/O
O Radio Eth Transmit data +
O Radio Eth Transmit data -
I Radio Eth Receive data +
I Radio Eth Receive data -
O Power for radio
O Ground return for radio
Function
NOTE
1-6
Signal Description
June 2006, Revised June 2014