Overview
Configured for Ethernet data communication in Series 90-70 Type 2 PLC systems, the General Electric IC697CMM742 (IC697CMM742 Communications Module) provides physical network interfacing through supported Ethernet media and a standard 15-pin AUI network port. The module uses pre-loaded firmware and supports 10Base5, 10Base2, 10BaseT, 10BaseF, and 10Broad36 network configurations.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC697CMM742 |
| Brand | General Electric |
| Series | Series 90-70 Type 2 |
| Product Type | Ethernet Interface Communications Module |
| Origin | USA |
| Weight | 0.52 kg |
| Dimensions | 4 x 21.7 x 29.2 cm estimated shipping size |
| Operating Temp | Not specified in the supplied data |
| Power Consumption | 2.0 A at +5 VDC; 0.5 A maximum at +12 VDC when powering an external AUI transceiver |
| Module Operating Voltage | +5 VDC, +12 VDC |
| Network Interface | Ethernet |
| Network Standards | IEEE 802.3 CSMA/CD |
| Supported Ethernet Media | 10Base5, 10Base2, 10BaseT, 10BaseF, 10Broad36 |
| 10BaseT Port | Ethernet, IEEE 802.3 CSMA/CD |
| 10Base2 Port | Ethernet, IEEE 802.3 CSMA/CD |
| AUI Network Port | Standard 15-pin AUI |
| Firmware | Pre-loaded |
| LED Indicators | MODULE OK, LAN ONLINE, SERIAL ACTIVE, STATUS |
| Internal Fuse | 5 x 20 mm, 250 V, 1.0 A, slow acting |
Ethernet Interface and Firmware
The IC697CMM742 provides Ethernet communication for the Series 90-70 Type 2 PLC platform. It supports multiple 10 Mbps Ethernet media types, including 10Base5, 10Base2, 10BaseT, 10BaseF, and 10Broad36.
The module provides a standard 15-pin AUI network port for compatible external network interfacing. In addition, the supplied specifications identify 10BaseT and 10Base2 Ethernet interfaces using IEEE 802.3 CSMA/CD. The module also carries pre-loaded firmware, so the communication hardware operates with its specified firmware already installed.
The module reports operating and communication states through MODULE OK, LAN ONLINE, SERIAL ACTIVE, and STATUS LEDs. Therefore, technicians can use these indicators during installation and fault isolation without relying only on external network equipment.
Frequently Asked Questions
Q: What Ethernet network types does the IC697CMM742 support?
A: The module supports 10Base5, 10Base2, 10BaseT, 10BaseF, and 10Broad36 Ethernet media. The supplied data identifies 10BaseT and 10Base2 as IEEE 802.3 CSMA/CD interfaces.
Q: What power does the IC697CMM742 require?
A: The module operates from +5 VDC and +12 VDC. It draws 2.0 A typically from +5 VDC and up to 0.5 A from +12 VDC when powering an external AUI transceiver.
Q: What network connector does the IC697CMM742 provide?
A: The module provides a standard 15-pin AUI network port. The supplied specifications also identify 10BaseT and 10Base2 Ethernet interfaces.
Field Installation Guidelines
Install the IC697CMM742 in the designated Series 90-70 PLC hardware location and verify that the module seats correctly in the backplane connector. Before installation or removal, follow the PLC system procedure for removing power from the applicable hardware.
Connect the Ethernet network through the interface appropriate for the installed network architecture. For AUI connections, use a compatible 15-pin AUI interface and verify connector engagement before applying power.
Route Ethernet communication cables separately from high-current power conductors, contactor wiring, and other sources of electrical interference. Maintain proper cable shielding and grounding practices according to the installed Ethernet cabling system.
After installation, verify the MODULE OK and LAN ONLINE indicators. Then check the remaining status indicators while establishing network communication. If an external AUI transceiver receives power from the module, confirm the +12 VDC current loading before connecting additional equipment.
The internal fuse is specified as a 5 x 20 mm, 250 V, 1.0 A slow-acting fuse. Replace the fuse only with a matching specification and follow the applicable maintenance procedure.

















