APC by Schneider Electric AP9624 UPS Interface Expander 2
Overview
The AP9624 UPS Interface Expander 2 is an internal expansion card designed to add serial communication capability to compatible APC by Schneider Electric UPS systems. Where a base UPS ships with a single management or signaling port, the AP9624 installs internally to provide both a serial host interface and a serial output interface — giving facilities managers and IT architects the flexibility to connect additional monitoring devices, relay I/O equipment, or legacy serial management systems without replacing the UPS itself.
This is a purpose-built internal accessory for environments where the base UPS communication slot count is a deployment constraint. If your UPS infrastructure needs to talk to multiple serial-connected devices simultaneously — environmental sensors, building automation controllers, or older SNMP bridges — the AP9624 addresses that limitation directly.
Key Features
- Serial Host and Output Interfaces: The AP9624 provides both a serial host interface and a serial output interface in a single internal card. This means you can connect the UPS to a host management system while simultaneously driving a downstream serial device — eliminating the need for external serial splitters or additional interface hardware.
- Internal Installation: The card installs inside the UPS chassis, keeping the external form factor clean and avoiding external adapter clutter on the UPS rear panel. For rack-dense deployments where cable management is a real concern, this matters.
- Broad Regulatory Certification: The AP9624 carries C-tick, CE, FCC, EN 55022, EN 55024, and IEC 62040-2 certifications. EN 55022 and EN 55024 cover conducted and radiated emissions plus immunity — relevant if your UPS is installed in an environment with strict EMC compliance requirements (healthcare, industrial control rooms, data centers with sensitive RF environments).
- Operating Range 0–40°C: Rated for operation between 0°C and 40°C with up to 95% relative humidity (non-condensing). Standard commercial equipment room conditions are well within spec. Storage is rated from -15°C to 45°C, so the card ships and stores without special handling.
- Compact Form Factor: At 121mm wide × 114mm deep × 38mm tall, the AP9624 is a low-profile internal card. It won't conflict with adjacent cards or cable runs inside the UPS expansion bay.
Integration & Compatibility
The AP9624 is designed for internal installation in compatible APC UPS models that support the Interface Expander slot. Verify your specific UPS model accepts this card before ordering — not all APC UPS units include an expansion bay for internal interface cards. Consult the UPS model's compatibility matrix or contact pre-sales engineering to confirm fit. For deployments requiring network-based SNMP management rather than serial, review the APC SmartSlot network management card line as an alternative path.
The serial interfaces on the AP9624 are suited for integration with UPS management and power monitoring systems that communicate over RS-232 or compatible serial protocols. Legacy building automation systems, environmental monitoring units, and relay I/O panels are the primary downstream devices this card was engineered to support.
Frequently Asked Questions
Q: What interface types does the AP9624 provide?
A: The AP9624 provides one serial host interface and one serial output interface, both installed internally within the UPS chassis.
Q: Is the AP9624 an internal or external card?
A: It is an internal card. It installs inside a compatible APC UPS unit's expansion bay — no external enclosure or adapter is required.
Q: What certifications does the AP9624 carry?
A: The AP9624 is certified to C-tick, CE, FCC, EN 55022, EN 55024, and IEC 62040-2 standards, covering emissions, immunity, and UPS-specific requirements.
Q: What is the operating temperature range of the AP9624?
A: The AP9624 operates from 0°C to 40°C (32°F to 104°F) at up to 95% relative humidity. Storage is rated from -15°C to 45°C.
Q: Will the AP9624 fit any APC UPS?
A: No. The AP9624 requires a compatible APC UPS with an internal Interface Expander expansion slot. Confirm your UPS model's compatibility before ordering.
The AP9624 solves a specific and frustrating gap: you have a capable APC UPS, but only one serial communication slot, and you need to connect both a host management system and a downstream serial device simultaneously. That's exactly what this internal card addresses — one host interface, one output interface, installed cleanly inside the chassis.
Technical Highlights:
- Dual Serial Interfaces: One host-side and one output-side serial port in a single internal card — eliminates external splitters and keeps the rear panel clean in tight rack environments.
- IEC 62040-2 Certification: This UPS-specific EMC standard (Class C2) means the card has been tested in the context of UPS equipment, not just as a generic electronic device. Relevant for data centers and industrial environments with strict EMC compliance audits.
- 0–40°C Operating Range with 95% RH tolerance: Covers the thermal and humidity envelope of most commercial equipment rooms and light industrial spaces without derating.
Deployment Considerations:
- Confirm your UPS model has an available internal Interface Expander slot before ordering — the AP9624 is not a universal fit. APC's UPS compatibility matrix is the authoritative source.
- The serial interfaces are the defining constraint here: if your management ecosystem has moved fully to Ethernet/SNMP, this card won't bridge that gap — you'd want an APC SmartSlot network management card instead.
The AP9624 is the right call for facilities running legacy serial-connected monitoring or building automation equipment alongside a compatible APC UPS, where adding an external serial adapter isn't viable and a clean internal expansion is preferred.
