Fibersystem 21-1601, Техническое руководство

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5
Power supply.
Both 21-1601 and 21-1651 are equipped with the same type of power supply.
The power supply accepts a wide range of voltages.
48-250VDC, +/- 20%.
110-230VAC, +/- 20%.
The only thing that differs between 21-1601 and 21-1651 is the type of connector for
main power supply.
21-1601 has a IEC 320, 3-pin power connector. It also have a mains filter and a fuse
available for replacement.
21-1651 has a 3-pin XLR connector. No filter. Fuse not replaceable.
In addition both 21-1601 and 21-1651 can be powered with 48V to 250V.
Fiber Optic G.703 Codirectional
The ITU-standard “G.703 64kbit/s codirectional interface” describes a galvanic
interface. This interface is for example commonly used by teleprotection equipment
for connection to telecom multiplexers.
The codirectional interface is transferred at one balanced pair for each direction.
The 21-16xx converts the codirectional interface signals to a proprietary fiber optic
protocol.
Fiber Optic G.703 Contradirectional
The ITU-standard “G.703 64kbit/s contradirectional interface” describes a galvanic
interface.
The contradirectional interface is transferred at two symmetrical pairs for each
direction. One pair carrying the data signal and the other carrying a composite timing
signal (64kHz and 8kHz).
The 21-16xx converts the contradirectional interface signals to a proprietary fiber
optic protocol.
G.703 2048kbit/s unbalanced
The ITU-standard G.703, E1, 2048kbit/s unbalanced, (75 Ohm BNC), ports are
intended to connect to, for example a telecom multiplexer. The 21-16xx transfer
HDB3-koded signals with or without frameing.
The 21-16xx converts the G.703 2048kbit/s unbalanced interface signals to a
proprietary fiber optic protocol.
X.21
The ITU-standard X.21 is an interface primarily used in telecom for connection of
“customers (DTE) equipment” to “carrier’s (DCE) equipment”.
All signals are balanced.
The 21-16xx converts the X.21 interface signals to a proprietary fiber optic protocol.
RS530 / RS530A
Only available at products produced before October 2006.
The RS530 interface is a generic connector specification. The connector can be used
for to support RS422, RS423, V.35 and X.21, depending on the implementation.
Specifications for Fibersystems implementation of the RS530 are given later in this
document.
The 21-16xx converts the RS530 interface signals to a proprietary fiber optic protocol.