1. Overview

2. Key Features

• 16 digital input channels, simplex, non‑isolated, commoned

• Directly mates with T9401 / T9402 DI modules

• Per‑channel replaceable fuse protection (hot‑swap, no module removal needed)

• Input voltage: 18–32 VDC (nominal 24 VDC)

• SIL 3 capable (with T9401/T9402 and TÜV‑certified system)

• Commoned return design (all channels share a common ground)

• Field fault protection: overvoltage, overcurrent, short circuit

• LED status per channel (optional, front‑panel visible)

• Conformal coated for harsh environments

• Mounts to T9300 I/O base (3‑way) or T9100 chassis

3. Electrical Specifications

Input

• Channels: 16, simplex, non‑isolated, commoned

• Voltage range: 18–32 VDC (24 VDC nominal)

• Logic threshold:

  • Logic 1 (ON): ≥ 18 VDC

  • Logic 0 (OFF): ≤ 5 VDC

• Input current: ~6.5 mA per channel @ 24 VDC

• Fuse: 500 mA, per channel, hot‑swappable

Backplane / Interface

• Supply: 18–32 VDC (redundant)

• Max current: 260 mA

• Power dissipation: ≤ 4 W (13.6 BTU/h)

• Isolation: Field‑to‑backplane: 500 VDC reinforced

4. Mechanical

• Form: Single‑width 6U TA (fits T9100/T9300)

• Weight: ~0.34 kg (12 oz)

• Terminals: Screw terminals (field wiring)

• Fuse access: Front‑panel, per‑channel

• Mounting: T9300 I/O base or T9100 chassis

5. Environmental

• Operating temperature: −40 °C to +70 °C

• Storage: −40 °C to +85 °C

• Humidity: 5–95 % RH, non‑condensing

• Pollution degree: PD2

• Protection: Conformal coated

6. Safety & Approvals

• IEC 61508 SIL 3 (system‑level, with T9401/T9402)

• Approvals: CE, UL, CSA, ATEX, IECEx, TÜV, CCC

7. Compatibility & Ordering

Compatible Modules

• T9401: 16‑Ch Digital Input (Simplex)

• T9402: 16‑Ch Digital Input (Dual/TMR)

Ordering Information

• T9801: 16‑Ch Digital Input TA, Simplex, Commoned

• T9300: 3‑Way I/O Base Unit

• T9401 / T9402: Digital Input Modules