Doorking 1508 RS232 to RS422 Conversion 1508-055

DoorKing's 1830 Series Telephone Entry and Access Control Systems (1833, 1834, 1835, 1837, 1838) are all PC programmable systems that offer several different methods of transferring data from your PC to and from the entry system using the Remote Account Manager Software program that is included with the system.

• Dial-up Modem
• RS-232 Direct Connection (Cable)
• RS-232 to RS-422 Direct Connection (Cable)
• RS-232 Wireless Connection
• Connection via LAN
• Connection via WAN (Internet)
• Connection via Internet / DKS Modem Server

Voice Communication vs. Data Transfer
All 1830 Series Telephone Entry and Access Control Systems (1833, 1834, 1835, 1837) require a POTS (Plain Old Telephone Service) line to provide two‐way voice communication from the entry system to the resident. The 1838 Access Controller, in some applications, will also use a POTS line for data and voice communication purposes. Data transfer, on the other hand, simply transfers data (programming, transactions, etc.) from your PC to (and from) the entry system. While the voice communication path MUST use a POTS line, data transfer can use several different methods including the POTS line, RS‐232, Network connections and more. Please visit https://www.doorking.com/connect for more information.

Modem to Modem
All DKS 1830 Series system have a built‐in modem as a standard feature. Since the modem uses the telephone line, the telephone line connected to the system can be used for both data transfer and two‐way voice communication (but not simultaneously). Using a phone line and a modem connected to your PC, you can transfer data to and from the entry system from virtually anywhere in the world where you have a POTS line available to connect your modem to. Requirements: A phone line at your PC and a modem for your PC (if your PC does not have a modem already installed).

RS‐232 / RS‐422 / Wireless Modem
The RS‐232 connection on the 1830 Series circuit board provides for a direct connection, wired or wireless, from the system to your PC. This connection is limited in distance for both the wired and wireless options. This connection can only be used for data transfer; there is no voice communication capability.
Requirements: For both RS‐232 and RS‐422; a 6‐conductor shielded cable from the entry system to the PC. RS‐232 is limited to 100 feet distance; RS‐422 is limited to 4000 feet. The RS‐422 connection also requires an RS‐232 to RS‐422 conversion kit (P/N 1508‐055). Wireless Modem (P/N 1815‐740) distance varies, but is typically limited to 500 feet maximum. This can be extended to about 1000 feet with High Gain antennas (P/N 1815‐741).

LAN / WAN / Internet
Connect from your PC to the entry system via a LAN, WAN or the Internet. In some cases, this is a local connection (LAN) while in other cases, depending on how you set your system up, programming is possible via the internet from virtually anywhere in the world where you have an internet connection. This connection can only be used for data transfer; there is no voice communication capability.
Requirements: 1830‐175 TCP/IP to RS232 network adapter or 1830‐176 TCP/IP to RS422 network adapter and a network connection (Cat5 cable) at the entry system.

IM (Internet Modem) Server – Subscription (Fee) based service
This method of connection is really a combination of using the internet connection at your PC and the modem built into the entry system and the entry system POTS line. The advantage of this hybrid system is that there are no hardware items or additional connections needed. This is the simplest, quickest and easiest way to transfer data from your PC to the DoorKing entry system. Requirements: User registration and system activation on the IM Server.