| F4-51 E1/10Base-T Converter |
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Overview
The F4-56 gives the interface conversion between G.703 E1 and V.35. Provides an economical digital access solution for E1 and Fractional E1 network services. With a adapter cable, the device can link to other DTE Device, such as a router, at data rates of 64Kbps to 2048Kbps. User data is placed into the E1 frame, using only the required number of timeslots. Timeslot assignment is accomplished according to the Data Port speed and manual setting of DIPswitches. The main E1 link may be clocked from the recovered receive clock, from the Data Port clock, or from an internal oscillator. F4-56 is widely used in communication network, both in WAN and LAN field. |
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| Features |
• Interface conversion between E1 and V.35
• Access to E1 & Fractional E1 services
• E1 port: 75ohm & 120ohm impedance optional, use BNC and RJ45 port respectively
• Data rate: DIP selectable, Nx64Kbps 2048Kbps
• Full transparent signal conversion under unframed mode
• Clock regeneration from incoming HDB3 Data
• Support local & remote loop test
• Alarm LED: LOS LOF AIS RAL (Remote Syn. Loss)
• DB25 connector for V.35, with DCE mode
• Multiple clock selection: internal clock, V.35 recovery clock and E1 recovery clock at your selection
• Internal power supply, 220V AC and 48V DC optional
• Standalone and Chassis optional |
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| Specifications |
| E1 port |
• Framing: Unframed/Framed, PCM31/PCM30, CRC4 ON/OFF
• Bit Rate: 2.048Mbps
• Line Code: HDB3
• Line Impedance: 75 ohm & 120 ohm
• Compatible with ITU G.703, G.704
• Jitter Performance: compatible with G.742 and G.823
• Interface Connectors: BNC (x2) connectors for line impedance 75ohm, RJ45 connector for line impedance 120ohm |
| Table1: 120ohm E1 Port's Definition |
| Pin |
3 |
4 |
5 |
6 |
2,7 |
Other |
| Func. |
TX+ |
TX- |
RX- |
RX+ |
GND |
N.A. |
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V.35 port |
• Data Rate: 2048Kbps(unframed) or nx64Kbps, where n equal 1 to 31 in PCM31 (CCS) and n equal to 30 in PCM30 (CAS)
• Line code: NRZ
• Connector: 25pin, D-type Female, with an adapter cable of DB25 male to M34 Female
• Work Mode: DCE Modes
• Clock: Recovery form E1; User Data port; Internal OSC |
General |
• Operating temperature: 0-50
• Power Supply: -48VDC or 220VAC 20%
• Dimension:
• Standalone: 270mm(Width)*137mm(Depth)*40mm(Height)
• Module (Card): 220mm(Depth) * 146mm(Height)
• Chassis: 440mm(Width) * 250mm(Depth) * 178mm(Height) |
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| Appearance |
| Front Panel of standalone |
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| Back Panel of standalone |
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Front Panel of Chassis |
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Back Panel of Chassis |
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Front Panel of Module |
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Layout of Module |
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| LED Status Description |
| Table 2 LED Status Description |
| Indicator |
Color |
Status |
Description |
| PWR |
Green |
ON |
Power Supply OK |
| TX |
Yellow |
TX |
User Data Port is Receiving data (Data is from DTE to DCE) |
| RX |
Yellow |
ON |
User Data Port is transferring data (Data is from DCE to DTE) |
| RAL |
RED |
ON |
Remote Device Frame Syn Loss |
| AIS |
Red |
ON |
All 1's Alarm |
| LOS |
Red |
ON |
E1 Signal Loss |
| LOF |
RED |
ON |
Local Device Frame Syn Loss |
| RLP |
Green |
ON |
Remote Loop Back Successful |
| LLP |
Green |
ON |
Local Loop Back Successful |
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| DIP Switch Setting Tables |
| E1 line impedance selection |
| Table 3: SW1/SET1 75/120ohm Selection Switch |
| Switch Position |
75Oohms |
120ohms |
| 1 |
OFF |
ON |
| 2 |
ON |
OFF |
| 3 |
ON |
OFF |
| 4 |
ON |
OFF |
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| Note: SW1 is for module, SET1 is for standalone device |
Functional setting |
| Table 4 SET2/SW2 functional setting |
| Pos |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
| Mea. |
| ON |
Reversed
Must be
OFF |
Slave |
Work |
Reversed
Must be
OFF. |
No CRC Check |
PCM30 |
Clock mode,
see table 5 for
detail |
| OFF |
Master |
Remote Loop Back |
CRC Check |
PCM31 |
Factory
Default |
OFF |
OFF |
ON |
OFF |
OFF |
OFF |
ON |
ON |
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Note :
1. SW2 is for module; SET2 is for standalone device.
2. Set both side in master mode under normal condition.
3. For remote controlling, such as remote loop back test and remote bandwidth setting, set the local side in master mode, remote side in slave mode. |
Table 5 Clock mode selection |
| Clock Mode |
Position 7 and 8 of SET2/SW2 |
| Pos. 7 |
Pos. 8 |
| Internal OSC. |
OFF |
OFF |
| Recovery from E1 |
ON |
ON |
| V.35 DTE Clock |
OFF |
ON |
| Reserved |
ON |
OFF |
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Table 6: SET3/SW3 Functional setting |
| Position |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
| ON |
Bandwidth selection, see table 7 for detail. Meaningful only when Pos.8 is ON. |
RCK Normal |
TCK Normal |
Framed |
| OFF |
RCK Reverse |
TCK Reverse |
Unframed |
| Factory Default |
OFF |
OFF |
OFF |
OFF |
OFF |
ON |
ON |
OFF |
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| Note: SW3 is for module; SET3 is for standalone device. |
Table 7: Bandwidth setting |
| SET3/SW3 Pos.1 Pos.5 setting |
Bandwidth |
| 1 |
2 |
3 |
4 |
5 |
| ON |
ON |
ON |
ON |
ON |
NA |
| OFF |
ON |
ON |
ON |
ON |
64Kbps |
| ON |
OFF |
ON |
ON |
ON |
128Kbps |
| OFF |
OFF |
ON |
ON |
ON |
192Kbps |
| ON |
ON |
OFF |
ON |
ON |
256Kbps |
| OFF |
ON |
OFF |
ON |
ON |
320Kbps |
| ON |
OFF |
OFF |
ON |
ON |
384Kbps |
| OFF |
OFF |
OFF |
ON |
ON |
448Kbps |
| ON |
ON |
ON |
OFF |
ON |
512Kbps |
| OFF |
ON |
ON |
OFF |
ON |
576Kbps |
| ON |
OFF |
ON |
OFF |
ON |
640Kbps |
| OFF |
OFF |
ON |
OFF |
ON |
704Kbps |
| ON |
ON |
OFF |
OFF |
ON |
768Kbps |
| OFF |
ON |
OFF |
OFF |
ON |
832Kbps |
| ON |
OFF |
OFF |
OFF |
ON |
896Kbps |
| OFF |
OFF |
OFF |
OFF |
ON |
960Kbps |
| ON |
ON |
ON |
ON |
OFF |
1024Kbps |
| OFF |
ON |
ON |
ON |
OFF |
1088Kbps |
| ON |
OFF |
ON |
ON |
OFF |
1152Kbps |
| OFF |
OFF |
ON |
ON |
OFF |
1216Kbps |
| ON |
ON |
OFF |
ON |
OFF |
1280Kbps |
| OFF |
ON |
OFF |
ON |
OFF |
1344Kbps |
| ON |
OFF |
OFF |
ON |
OFF |
1408Kbps |
| OFF |
OFF |
OFF |
ON |
OFF |
1472Kbps |
| ON |
ON |
ON |
OFF |
OFF |
1536Kbps |
| OFF |
ON |
ON |
OFF |
OFF |
1600Kbps |
| ON |
OFF |
ON |
OFF |
OFF |
1664Kbps |
| OFF |
OFF |
ON |
OFF |
OFF |
1728Kbps |
| ON |
ON |
OFF |
OFF |
OFF |
1792Kbps |
| OFF |
ON |
OFF |
OFF |
OFF |
1856Kbps |
| ON |
OFF |
OFF |
OFF |
OFF |
1920Kbps |
| OFF |
OFF |
OFF |
OFF |
OFF |
1984Kbps |
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Note:
1. Bandwidth setting is meaningful only when Pos.8 of SET3/SW3 is ON.
2. In PCM30 mode, the max number of valid timeslot is 30, and the max valid bandwidth is 1920Kbps. |
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| Loop back test and remote bandwidth control |
| Local loop back test |
1. Set all setting switches at factory default position.
2. Connect a coaxial cable between out and in plug of E1 port.
3. Connected F4-56's V.35 port to a tester or router as the picture below.
4. Run the test command of the V.35 tester or let the router check the V.35 port. |
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| 5. If the test succeeds, all red LEDs on F4-56 should turn off. V.35 tester will report no error condition; router should see the port is UP. |
Remote loop back test |
1. Set both side in framed mode.
2. Set local side in internal OSC clock mode, remote side in Recovery from E1 clock mode.
3. Set Local side in master mode, remote side in slave mode, see table 4 for detail.
4. Set Local side in remote loop back mode, see table 4 for detail.
5. Connect devices as the picture below. |
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6. Run the test command of V.35 tester or let the router check V.35 port.
7. If the test succeeds, all red LEDs on F4-56 should turn off, the V.35 test should report no error, the router should see the port UP. The RLP LED of local side should turn on, the LLP LED of remote side should turn on. |
Remote bandwidth control |
1. Set both side in framed mode.
2. Set local side in internal OSC clock mode, remote side in Recovery from E1 clock mode.
3. Set Local side in master mode, remote side in slave mode, see table 4 for detail.
6. Connect devices as the picture below. |
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| 7. When bandwidth change required, change bandwidth of local side only, no need to go to remote side for setting the new bandwidth. |
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| Typical application |
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| Description: In this topology, the Computers in the LAN can access the WAN or Internet using the device F4-56. |
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| * Specificatiile pot fi schimbate fara preaviz |
