Public address system · Fire emergency telephone
DH9901EFire Telephone Extension
Key features
- Executive standard: GB 16806-2006, GB 3380, GB/ T 15279-2002
- Operating voltage: DC24V (pulse width modulation)
- Working current: monitoring state<0.5mA, communication state <12mA
- Work instruction: the red indicator for monitoring status flashes once every 5 seconds, and when flash-hook bounces, set the local address indicator to normally on; under host calling state, the extension’s ringing indicator is off, the non-ringing indicator is on, and the address invalid indicator flashes twice continuously every 5 seconds.
- Wiring method: polarity-free two-bus system (L1, L2)
- Coding mode: field coding is carried out by a dial switch, and the address codes 1 to 99 are optional.
- Overall dimensions: 206mm long, 58.5 mm wide (with base)
- Installation height: ≤ 1.5m
Price on request
The DH9901E fire telephone extension with address is a two-wire fire telephone extension (hereinafter referred to as the extension). The extension is designed with non-polar wiring and built-in microprocessor, can operate together with a DH99E fire telephone host. In addition, the local address can be set by manual dialing with the dial switch. The host can be called by extension with off-hook operation, and communication is enabled by off-hook while the host is calling. The extension and the host can realize full-duplex communication, characterized by the simple and convenient operation, as well as clear communication.
Technical Parameters:
| Executive standard | GB 16806-2006, GB 3380, GB/ T 15279-2002 |
| Operating voltage | DC24V (pulse width modulation) |
| Working current | monitoring state<0.5mA, communication state <12mA |
| Work instruction | the red indicator for monitoring status flashes once every 5 seconds, and when flash-hook bounces, set the local address indicator to normally on; under host calling state, the extension’s ringing indicator is off, the non-ringing indicator is on, and the address invalid indicator flashes twice continuously every 5 seconds. |
| Wiring method | polarity-free two-bus system (L1, L2) |
| Coding mode | field coding is carried out by a dial switch, and the address codes 1 to 99 are optional. |
| Overall dimensions | 206mm long, 58.5 mm wide (with base) |
| Installation height | ≤ 1.5m |
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