Product Core Brief
- Model: 8115-DO-DC
- Brand: GE / Emerson (PAC8000 I/O Family)
- Series: PAC8000 Modular I/O
- Core Function: 8-channel digital output module providing discrete or pulsed DC outputs for industrial control and automation systems.
- Product Type: Digital Output (DO) Module
- Key Specs: 8-point source output | 2–60 VDC output range | 1 A per channel | 3 A max per module | 1 ms response | discrete or pulsed outputs
- Condition: New Surplus / Refurbished (legacy PAC8000 product; confirm availability and lifecycle status)
Product Introduction
The 8115-DO-DC is an 8-channel digital output module from the GE PAC8000 modular I/O family, now associated with Emerson’s PAC8000 platform. It provides eight source-type discrete or pulsed DC outputs, each rated up to 1 A, with a 2–60 VDC field power range and a maximum module current of 3 A. The module is designed for integration into PAC8000 carriers, where it connects to the internal Railbus for power, addressing, and data exchange.
PAC8000 I/O is a modular solution for general-purpose and hazardous-area applications. Field terminals snap onto the carrier and accept field wiring without additional terminal blocks, and a mechanical keying system helps prevent incorrect module installation. Because authoritative OEM documentation for the exact “8115-DO-DC” suffix is limited, the module should be verified against the PAC8000 product manual, carrier configuration, and installed Bus Interface Module before deployment.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | 8-Channel Digital Output Module |
| Brand | GE / Emerson (PAC8000) |
| Model | 8115-DO-DC |
| Output Type | Source output |
| Output Count | 8 points |
| Output Rating | 2–60 VDC, 1 A per channel |
| Max Module Current | 3 A |
| Response Time | 1 ms |
| Special Capabilities | Discrete or pulsed outputs |
| System Integration | PAC8000 carrier with Railbus interface |
| Typical Applications | Industrial automation, process control, machine control, auxiliary output switching |
Exact terminal assignment, field power wiring, diagnostic behavior, and compatible carriers/BIMs should be confirmed against the PAC8000 hardware manual.
Quality Control Process (DYNAMIC GENERATION)
- Part-number verification: Confirm 8115-DO-DC matches the PAC8000 carrier, BIM, and site output requirements.
- Visual inspection: Check module housing, connector pins, labeling, and PCB for corrosion, heat stress, or mechanical damage.
- Carrier fit check: Verify mechanical keying, Railbus connection, and field terminal compatibility.
- Output channel test: Apply 2–60 VDC field power and verify each channel switches correctly under load.
- Pulse/discrete function check: Validate discrete ON/OFF operation and pulsed output behavior if required by the application.
- System communication check: Confirm the BIM recognizes the module and reports correct I/O status.
Replacement Pitfall Guide (DYNAMIC GENERATION)
❗ Do not exceed 3 A total module current. Each channel supports up to 1 A, but the module total is limited to 3 A. Exceeding this can cause overheating or premature failure.
❗ Confirm output type. 8115-DO-DC is a source-type DC output module. It should not be substituted for sinking, relay, or AC output modules without verifying field wiring.
❗ Verify field power range. The module requires 2–60 VDC bussed field power. Applying voltage outside this range may damage the module or connected loads.
❗ Check PAC8000 carrier compatibility. PAC8000 modules must be installed in compatible carriers with the correct BIM and power configuration.
❗ Do not assume direct interchangeability with Multilin UR, F60, F650, or 750/760 relays. This is a modular I/O output card, not a standalone protection relay.
❗ Confirm lifecycle status. PAC8000 legacy modules may be available only through surplus channels; long-term replacement planning should consider current Emerson/GE I/O platforms.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| GE 8115-DO-DC | GE/Emerson 8115-DO-DC | Direct | Match full part number, carrier type, and BIM configuration. |
| GE 8115-DO-DC | Other PAC8000 DO modules | Needs Verification | Confirm channel count, output rating, and carrier compatibility. |
| GE 8115-DO-DC | GE Multilin UR / F60 / F650 I/O | Not Direct | Different hardware platform; not a drop-in replacement. |
| GE 8115-DO-DC | Current Emerson PAC8000 / RX3i equivalents | Migration | Requires engineering review for carrier, BIM, addressing, and wiring mapping. |
Benchmarks:
- PAC8000 8-channel digital output module, source type, 2–60 VDC.
- 1 A per channel, 3 A maximum per module, 1 ms response time.
- Supports discrete or pulsed outputs for industrial control applications.
- Installs into PAC8000 carriers with snap-on field terminals.
- Suitable for legacy PAC8000 maintenance, retrofit projects, and spare-parts replacement.
