Indicators (front panel)
The DCB PPP-SR-DSU replaces a DSU, router and Ethernet network interface card (NIC) at remote locations for one to
four PC's connecting to a corporate network or Internet service provider. The PPP-SR-DSU allows computers using async
dial PPP programs (Windows95 Dial Up Networking, Chameleon, Spry etc.) to connect on a permanent private line link.
The DCB PPP-SR-DSU is a 56/64 Kbps synchronous DSU/CSU with one or four asynchronous ports and synchronous PPP or frame relay translation. The PPP-SR-DSU translates the synchronous protocols from the host router to asynchronous PPP and passes that to the async com ports of the remote PC's.
The unit is also available without the internal DSU, designated as the PPP-SR-01 one port unit and the PPP-SR-04 four port unit. Without the internal DSU, the PPP-SR can be connected to ISDN terminal adapters or fractional T1 channels at speeds up to 128 Kbps.
The PPP-SR-DSU negotiates the link with the computer and router as follows:
Rates: 56/64 Kbps synchronous (64 Kbps DSU to ship 9/97)
Async port rates to 57,600 bps
Facility: 56/64 Kbps Dataphone Digital Service (DDS) or equivalent, Line driver mode for customer owned 4-wire circuit. Supports frame relay at 56/64 Kbps
Power, Activity, Line Error, Modem Ready, Port 1 Setup, Loopback
DSU Led's: TxD, RxD, RTS, CTS, DCD, Test
Front panel push button for loopback
Side door accessible firmware cartridge for installing firmware upgrades
Rear panel switches for master or slave clock, RTS forced on or DTE controlled
Responds to telco current reversal loopback and non-latching pattern loopback.
Setup via the "Port One Setup" or via the rear panel setup port
Interface: DDS bipolar return to zero
Connector: 8-wire RJ-48S
Interface: RS-232, V.24, speeds up to 57,600 bps
Connector: RJ-45 per EIA/TIA 561 pin outs
Power requirements: 120 VAC,
60 Hz, 18 Watts
10 1/4" x 9 3/4" x 2 1/4"
|PPP-SR01-DSU||PPP-SR01 with internal DSU||$695|
|PPP-SR01||Sync to Async PPP Translator, uses external DSU, ISDN Terminal Adapter or channel bank port||$595|
|PPP-SR04-DSU||PPP-SR04 with internal DSU||$895|
|PPP-SR04||Sync to Async PPP Translator, uses external DSU, ISDN Terminal Adapter or channel bank port||$795|
|Data Comm for
2949 County Road 1000 E
Dewey, Il 61840
Toll Free: 800-4-DCB-NET
Toll Free: 800-432-2638
|Email: Contact Page
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