ABB 1SBP260103R1001 Extension Unit

This extension unit adds I/O capacity to ABB Advant control systems. The ABB 1SBP260103R1001 connects to the basic unit via a shielded ribbon cable. You can mount this unit up to 5 meters away from the main controller. Its modular design allows flexible placement inside large cabinets.

Physical Dimensions and Mounting Configuration

The ABB 1SBP260103R1001 measures 12.0 cm in overall width. Its total height reaches 18.5 cm including mounting flanges. This extension unit weighs approximately 0.95 kg. A sturdy metal enclosure protects internal electronics from vibration and dust. Four mounting screws secure the unit to a DIN rail or backplate.

I/O Capacity and Slot Configuration

This extension unit accepts up to 8 I/O modules of any type. The ABB 1SBP260103R1001 supports digital, analog, and specialty modules. Each slot connects to the internal backplane automatically upon insertion. A dedicated slot on the left side holds the bus termination module.

Parameter	Specification
Product Type	Advant I/O extension unit
Number of I/O Slots	8
Supported Module Types	Digital I/O, analog I/O, specialty
Maximum Distance from CPU	5 meters
Connection Cable	50‑pin shielded ribbon (included)
Bus Termination	Required on last unit (sold separately)
Dimensions (W x H x D)	120 mm x 185 mm x 110 mm
Weight	0.95 kg (2.09 lbs)
Backplane Supply	5V DC from base unit
Backplane Current Draw	120 mA max
Power Dissipation	0.6 W
Internal Energy Storage	470 µF capacitor bank
Number of Components	1 backplane board, 1 connector panel
Wire Size (Field Wiring)	Dependent on inserted modules
LED Indicators	Power (green), bus active (yellow)
Operating Temperature	0°C to +55°C
Protection Class	IP20

Energy Storage and Bus Stability

A 470 µF capacitor bank stabilizes the 5V backplane supply locally. The ABB 1SBP260103R1001 provides 10 ms of hold‑up time for all inserted modules. This storage prevents data corruption during brief supply interruptions. Consequently, output states remain stable through short power dips.

Bus Connection and System Topology

Connect this extension unit using the shielded 50‑pin ribbon cable. The ABB 1SBP260103R1001 requires a bus terminator on the last unit. You can daisy‑chain up to 3 extension units per basic controller. Each unit maintains full communication with the CPU independently.

Installation and Addressing Rules

Insert I/O modules into any available slot from left to right. The ABB 1SBP260103R1001 auto‑assigns addresses based on slot position. Do not leave empty slots between populated modules. Otherwise, addressing gaps may occur in the I/O map. Fill all slots sequentially for best results.