ATEN SN9116CO 16-Port Serial Console Server

Overview

The ATEN SN9116CO is a 16-port rack-mount serial console server designed for out-of-band management of network infrastructure — routers, switches, firewalls, and serial-enabled devices where direct console access is required when the primary network path is unavailable. The SN9116CO consolidates 16 serial console connections into a single rack unit accessible over IP, eliminating the need to physically reach equipment in remote or dense-rack deployments. Firmware is actively maintained, with the current release (v1.8.178, dated 2024-05-02) available via ATEN's download portal.

Compatibility

The SN9116CO connects to any device with a serial console port using standard DTE wiring. It operates as a Real TTY driver under Linux (driver v1.1.101) and as a Fixed TTY driver under Unix environments, meaning it integrates cleanly into existing network management workflows on both platforms without requiring custom serial emulation. The IEC60320/C14 inlet accepts standard data-center power cords, making it compatible with PDUs and rack power strips across power infrastructure deployments. For environments running ATEN KVM or switching infrastructure, the SN9116CO fits natively into consolidated out-of-band access architectures. Consider pairing with a compatible managed switch to segment console-server traffic onto a dedicated OOB VLAN for security isolation.

Installation Notes

Power input is 100–240V AC, 1A, 50/60Hz via a single IEC60320/C14 connector — standard rack PDU feed, no special circuit required. Ambient humidity must stay at or below 80% RH non-condensing; avoid installations in unconditioned spaces or near HVAC discharge points. ATEN's documentation notes that rack-mount products in this line express physical dimensions in L×W×H order rather than the more common W×D×H — verify rack depth clearance using the L value before mounting. The 16-port Auto DTE configuration means no null-modem adapters are needed for standard console connections, but verify pinout on legacy or non-standard devices before deployment.