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USER

MANUAL

MODEL 2720/I

T1/Fractional T1 CSU/DSU
with Ethernet Bridging

SALES OFFICE
(301) 975-1000
TECHNICAL SUPPORT
(301) 975-1007
http://www.patton.com

Part# 07M2720/I-A
Doc#086181UA
Revised 04/11/01

C E R T I F I E D

An ISO-9001

Certified Company

Содержание NetLink 2720 Series

Страница 1: ...I T1 Fractional T1 CSU DSU with Ethernet Bridging SALES OFFICE 301 975 1000 TECHNICAL SUPPORT 301 975 1007 http www patton com Part 07M2720 I A Doc 086181UA Revised 04 11 01 C E R T I F I E D An ISO...

Страница 2: ...m as warranted your sole recourse shall be repair or replacement as described above Under no con dition shall Patton Electronics be liable for any damages incurred by the use of this product These dam...

Страница 3: ...ct you in advance If you elect to do so you have the right to file a complaint with the FCC If you have any trouble operating the Model 2720 Series please contact Patton Electronics Technical Support...

Страница 4: ...atures that make sys tem setup easy The Ethernet Bridge in this unit requires no configura tion at all The NetLink T1 provides T1 terminations over a modular RJ 48C jack and comply with jitter toleran...

Страница 5: ...al Cisco router with a serial interface configured as a PPP Half Bridge The router serial interface uses a remote device that supports PPP bridging to function as a node on the remote Ethernet network...

Страница 6: ...s On 64 kbps 3 1 1 Switch S2 The table below shows the default configurations for Switch S2 A description of all S2 options follows this table Switches S2 1 S2 2 and S2 3 Use Switches S2 1 S2 2 and S2...

Страница 7: ...ck your clock mode settings and Tx Clock Invert S1 3 settings Switch S2 8 Reserved 3 1 2 Switch S1 The chart below shows the default configurations for Switch S1 A description of all S1 options follow...

Страница 8: ...operating parameters Follow the instructions below to configure the Model 2720 using the software selections 1 Plug the 9 pin male end of the cable to your terminal or com puter s DB 9 serial port and...

Страница 9: ...each letter you type The maximum length of the password which can include any character the terminal can generate is 16 characters 6 The Model 2720 will then display the Main Menu screen 3 2 1 Introd...

Страница 10: ...isfaction you can save the changes permanently by exe cuting the Save Changes command This will update the unit s configuration and save all the parameters to permanent mem ory Logoff For security log...

Страница 11: ...ring of the network interface performance over the Facility Data Link FDL AT T TR 62411 says the Extended Superframe Format extends the DS1 superframe structure from 12 to 24 frames for a total of 463...

Страница 12: ...PRMs The messages con tain the NI performance over the last four seconds Thus up to three consecutive messages may be lost without loss of information It is available only with ESF When ANSI T1 403 is...

Страница 13: ...the line The duration of the loopback is limited by the loopback timeout setting See Unit Operations paragraph 3 2 4 on pages 32 and 33 Default Config Source Switch default Option EEPROM Switch The Mo...

Страница 14: ...al DTE The Model 2720 Initiating a RL can be in one of the following states Idle No user controlled loopbacks are active TxPr The Model 2720 is sending the preparatory phase pattern lasting for approx...

Страница 15: ...the eight status messages Excessive zeros EXZ i e lack of pulses detected This condition may occur if the unit is not connected to the network in which case the EXZ is displayed continuously If EXZ co...

Страница 16: ...hot of the link performance To clear all counters press the Backspace key If your keyboard does not have this key you can press a two key combi nation to affect the same result Hold down the Ctrl key...

Страница 17: ...n minutes 00 30 thirty minutes default setting 00 45 forty five minutes 01 00 one hour 01 30 90 minutes 02 00 two hours 03 00 three hours NEVER forever the unit will remain in loopback without user in...

Страница 18: ...Port 10Base T Hub RJ 45 Pin No RJ 45 Pin No 1 TD 1 RD 2 TD 2 RD 3 RD 3 TD 6 RD 6 TD 4 3 T1 FT1 INTERFACE CONNECTION The Network Line Interface Line is an eight position keyed modu lar jack configured...

Страница 19: ...e s not octet aligned 7 pulses WAN receive frame s aborted 8 pulses Detected WAN receive frame s with CRC 9 pulses Detected LAN receive frame s too large 10 pulses Detected LAN receive frame s not oct...

Страница 20: ...RL The Remote Digital Loopback RL test checks the performance of both the local and remote NetLink T1 as well as the communication link between them Any characters sent to the remote NetLink T1 in thi...

Страница 21: ...h the LAL and RDL tests to evaluate the unit s and the communication links When a 511 2047 or QRSS test is invoked the NetLink T1 generates a pseudo random bit pattern of 511 bits 2047 bits or 2 20 bi...

Страница 22: ...47 QRSS Standards AT T TR62411 TR54016 ANSI T1 403 Power Supply 120VAC 60 Hz to 5VDC 300mA wall mount transformer or UI 100 240VAC 50 60 Hz to 5 VDC 2A desktop trans former Dimensions 3 5 L x 2 1 W x...

Страница 23: ...SSIGNMENT RJ 48C T1 DS0 Network Interface Female Modular Jack Pin Signal 1 RX Data TIP 1 2 RX Data RING1 4 TX Data TIP 5 TX Data RING TRS Jack RS 232 Control Port Pin Signal Direction Tip Tx Data From...