Hollyland Spares - DB25 Male to DB9 Female Tally Cable (for Wireless Tally System)

The Hollyland DB25 Male to DB9 Female Tally Cable (Model: HL-TCB05) is an official OEM interface adapter designed exclusively for the Hollyland Wireless Tally System.

While high-density video switchers use multi-row formats, many compact production switchers, legacy broadcast systems, and industrial PTZ camera controllers route their parallel tally layouts through standard 9-pin D-Sub configurations. This cable functions as the direct analog hardware link that bridges your switcher's physical relay closures into the master database of the Hollyland Wireless Tally Base Station.

Understanding the Connector Design

• DB25 Male Terminal (Tally Station Side): Plugs directly into the 25-pin parallel input matrix tracking port located on the back panel of the master Wireless Tally Station box.

• DB9 Female Terminal (Switcher Side): Features a standard 9-pin footprint arranged in 2 rows (5 pins over 4 pins) with inward-facing sockets. This female terminal profile matches switchers that output tally signals using a male DB9/DE-9 physical chassis connector.

Core Hardware & Signal Routing Features

• Low-Voltage Contact Closure Sync: Custom-wired to map low-voltage parallel dry contact loops. The millisecond your vision console triggers a camera to Program (Live / On-Air) or Preview (Next In Queue), the circuit grounds out and sends an instantaneous instruction down the cable to update the wireless on-camera tally lamps without delayed lag.

• Interference-Shielded Insulation: Wrapped inside an internal RF/EMI structural shield layer to insulate your sensitive parallel signaling lines from adjacent electrical noise generated by studio lighting grids, power strips, and heavy-duty video servers.

• Secure Mechanical Connection: Both terminal ends feature rugged, molded PVC housings equipped with thumb-locking screw sets. This physical design ensures a permanent grip that prevents the cable from slipping out of place behind tightly bundled, high-traffic equipment racks.

Technical Specifications Matrix

Pin Matching Configuration Advisory: Do not confuse this standard DB9 connector with high-density HDB15 connectors. While both shells are similarly sized, a standard DB9 uses 2 rows of total pins, whereas an HDB15 features 3 rows of micro-pins. Always count the rows on your switcher’s output module before seating the terminal to avoid bending or crushing contact elements inside the connector housing.