Specifications

OM20 Universal Outdoor Modem Rear Panel Interfaces

MN-OM20– Revision 5 5–6

23 Send Timing B (+) ST-B Output 12

24 No Connect --- --- 25

25 Clear To Send B (+) CS-B Output 13

Table 5.4.cont. EIA-530 Synchronous Data I/O; ES-ES Async Data Connector (J3)

Pin No.

Signal Name Signal Direction EIA-530 Std.

25 Pin

Connector

Reference

26 Transmit Data B (ES-ES) TXD_B Input N/C

27 Transmit Data A (ES-ES) TXD_A Input N/C

Receive Data A (ES-ES) RXD_A Output

N/C

31 Receive Data B (ES-ES) RXB_B Output N/C

Table 5.4a. G.703 Balanced (J3)

Pin No.

Signal Name Signal Direction G.703

Balanced

15 Pin

Connector

Reference

32 Send Data (-) SD-A Input 1

35 Receive Data A (-) RD-A Output 3

34 Ground GND --- 4

33 Send Data (+) SD-B Input 9

36 Receive Data B (+) RD-B Output 11

37 Mod Fault MOD-

FLT

Open

Collector

Output

29 Demod Fault DMD-

FLT

Open

Collector

Output

5.1.4 ETHERNET DATA/M&C (J4)

The Ethernet Data/M&C Port (J4) is dedicated for Ethernet communications. This port is

configured for 10/100 Base-T communication protocols, and can be used to Monitor & Control

the unit with the GUI interface functions of the unit and/or send and receive baseband data (if

equipped with the optional Ethernet data interface) The interface Complies with IEEE 802.3 and

IEEE802.3u. The physical interface (J4) is a standard male RJ45 Connector. A mating RJ45

weatherproof shroud is included with the standard unit. The terminating connector number is a

standard female RJ45. Ethernet cabling and connector is no included unless specified as an

option at the time of order.