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Toa VS-900 User Manual

Page 19

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19

10.4. RS-191 Option Handset (Indoor type)

10.4.1. Wall mounting

Mount the option handset to an electrical box mounted in the wall.

RS-191

Oval head combination screw
M4 x 25 (accessory)

2-gang electrical box
YC-302 (optional)

10.4.2. RS-190 and RS-191 connection

Plug out the jumper from the connector on the RS-190's side panel, then plug the RS-191's connection cable
instead as illustrated below.

RS-191

RS-190

Jumper

Connection cable

Accessory screws

The RS-191 comes with 2 types of screws: oval head
combination screw M4 x 25 and oval head slotted screw
UNC No.6 x 18.
For the electrical box provided with unified threads, use
the oval head slotted screws UNC No.6 x 18.