TW-1CS 2M Transmission Analyzer
Major Features
·           LCD large-screen display, 320*240 lattice, backlight, LED indicator
·           Hand held, auto configuration
·           Multi-task operation at one time
·           Store 20 test results and 9 test configurations, with power-off memories
·           PC operation, store, analysis, print
·           Programmable timer
·           Alarm and histogram analysis
·           Software updating
Major Functions
For 2Mbit/s:
·           Service-interrupted error testing 
·           Online error testing 
·           Framed and unframed signals generating and receiving 
·           2Mbit/s unframed error performance testing 
·           2Mbit/s framed N×64kbit/s channel error testing 
·           Bit error, coding error, frame error, CRC error and E bit error testing 
·           Signal loss alarm, AIS alarm, framed remote alarm, multi-framed remote alarm, out-of-frame, and pattern loss alarm 
·           Frequency offset testing 
·           Line signal level and frequency testing 
·           Voice channel signal level and frequency testing 
·           Pattern slip testing 
·           Clock slip testing 
·           Straightforward signaling 
·           Audio frequency testing 
·           Loop circuit delay testing 
·           Automatic protection switching time testing (APS) 
·           Clock bias function 
·           Sound monitoring 
·           Duplex 2Mbit/s detecting and monitoring 
·           Signal state display. Voice channel content display. Voice channel busy indication 
·           Alarm and error histogram analysis 
·           Time slot content analysis, drop and insert signal on each time slot 
·           Framed content analysis 
·           G.703 Template analysis 
·           G. 821/G. 826/M. 2100 error analysis 
·           Multi error and alarm inserting 
·           Three input modes (terminating, bridging and monitoring) 
·           Three clock options (internal, external and picking-up)
·           Jitter testing function
·           Touch screen TFT color LCD (optional)
* The functions of yellow fonts description is a module for user to select.
For Datacom:
·           V.24/RS232/V.28, V.35, V.36, X.21, RS-449, RS-485, RS422, EIA-530, EIA-530A datacom testing 
·           SYNCH and ASYNCH testing
·           DTE and DCE emulation 
·           Bit code testing 
·           Pattern slip testing 
·           Signal loss alarm 
·           Line signal level and frequency testing
·           Loop delay testing
·           Automatic protection switching time testing(APS)
·           G.821, M2100 service interrupt error testing
For co-directional 64Kbit/s:
·           Service interrupt error testing
·           Bit code testing
·           Pattern slip testing
·           Signal loss, AIS alarm
·           Line signal frequency testing
·           Loop delay testing
·           Automatic protection switching time testing(APS)
·           G.821, M.2100 error testing
Technical Index
·           2Mbit/s Technical Index
(1)        Signal input rate: 2048kbit/s ± 100ppm (G.703 requirement±50PPM)
(2)        Signal code: HDB3, AMI.
(3)        Input jitter tolerance: Up to the requirement of Figure 10.1. 
Fig.10.1  Input Jitter Tolerance
(4)       Input balance response: attenuation complies with the law of square root of frequency, and is within the range of 0 to 6dB at 1024 kHz.
(5)       Input Impedance
(5.1)  Unbalance terminating: 75W 
Balance terminating: 120W
Reflection loss >18dB within 50Hz~3100kHz
(5.2)  Unbalance bridging: >750W
Balance bridging: >1200W
(5.3)  Unbalance monitoring: 75W, 26dB gain
Balance monitoring: 120W, 26dB gain
Reflection loss >18dB within 50Hz~3100kHz
(6)       Signal structure
(6.1)  Unframed structure
(6.2)  Framed structure: PCM30, PCM31, PCM30CRC, PCM31CRC
Framed structure complies with the requirement of G. 704
(7)       Testing pattern: 26-1, 29-1, 211-1, 215-1, 220-1, 223-1, and artificial code
(8)       Impedance of output interface:
(8.1)  Unbalance 75W, up to G. 703
(8.2)  Balance 120W, up to G. 703
(9)       External clock input
(9.1)  Signal form: HDB3, NRZ
(9.2)  Balance terminating resistance: 120W 
Unbalance terminating resistance: 75W
Balance bridging resistance: >1200W 
Unbalance bridging resistance: >750W
(10)    Error code insertion: None, single, or ratio 10-1~10-7.
·            Co-directional 64k Technical Index
(1)       Signal input rate: 64kbit/s ± 100ppm(G.703 requirement±100PPM)
(2)       Input impedance: Balance 120W, up to G.703
(3)       Input jitter tolerance: Up to G.823. 
(4)       Impedance of output interface: Balance 120W, up to G.703
(5)       Testing pattern: 26-1, 29-1, 211-1, 215-1, 220-1, 223-1, and artificial code
·           Datacom Index
(1)        Data interface type: V.24, V.35, V.36, X.21, RS-449, RS-485, EIA-530 and EIA-530A.
(2)        Generator
(2.1)  SYNCH mode
Clock source: Internal or external clock
Phase relation between clock and data: co-direction or reverse direction.
Rate: 1.2, 2.4, 4.8, 9.6, 14.4, 19.2, 38.4, 48, 56(kbps), N×64kbps (N=1~32)
Error: ±15ppm (ppm: parts per million)
(2.2)  ASYNCH mode
      Rate: 50,75,110,150,200,300,600,1200,2400,3600,4800,7200,9600; 14.4k,19.2k,38.4k,57.6k(bps)
Data structure: Word length: 5, 6, 7, 8(bits)   Stop bit: 1, 2(bits) 
Odd-even check: odd, even, 1, 0, none
(2.3)  Error code insertion: None, single, or ratio 10-1~10-7.
(3)        Receiver
(3.1)  SYNCH mode
Clock source: Internal or external clock
Phase relation between receive clock and receive data: Equidirection or reverse direction.
Clock Rate: 2048kbps at a maximum
(3.2)  ASYNCH mode
      The rate and data are the same as those of the generator. 
(4)        Testing pattern: 26-1, 29-1, 211-1, 215-1, 220-1, 223-1, and artificial code
Other Parameters 
·           Power supply
(1)        Special power adapter
Input: AC220V 50Hz
Output: DC 9V 1A
(2)        Internal rechargeable battery 
4000mAh, 6V nickel-hydrogen rechargeable battery
Working time: 8 hours
Charging: 8 hours at power-off state, and 12 hours at power-on state
·           Dimension and weight
L×W×H: 200×160×42mm
Weight: 950g
·           Ambient parameters
Operation temperature: -10~50℃
Storage Temperature: -30~+70℃        
Humidity: 5%~90%, non-condensing 
Standard Configuration
 
| 
 No.  | 
 Item   | 
 Qty  | 
| 
 1  | 
 TW-1CS 2M Transmission Analyzer  | 
 1 set  | 
| 
 Attached files  | 
| 
 2  | 
 User’s manual  | 
 1 pc  | 
| 
 3  | 
 Software disc  | 
 1 pc  | 
| 
 Attached accessories  | 
| 
 4  | 
 75Ω Coaxial testing line   | 
 1 pc 
根  | 
| 
 5  | 
 BNC-L9 Testing line 
CESHIYI  | 
 2 pcs  | 
| 
 6  | 
 RS232 serial line  | 
 1 pc  | 
| 
 7  | 
 Special testing cable of data communicationⅠ(V.24,RS-485,EIA-530,EIA-530A)  | 
 1 pc  | 
| 
 8  | 
 Special testing cable of data communicationⅡ(RS-449,V . 36) 
   | 
 1 pc  | 
| 
 9  | 
 Special testing cable of data communication Ⅲ(X . 21)  | 
 1 pc  | 
| 
 10  | 
 Special testing cable of data communication Ⅳ(V . 35)  | 
 1 pc  | 
| 
 11  | 
 G.703 CO special testing cable(64Kb/s coaxial interface)  | 
 1 pc  | 
| 
 12  | 
 Power adapter  | 
 1 pc  | 
| 
 13  | 
 Data self-loop head  | 
 1 pc  | 
| 
 14  | 
 Switch cable  
 | 
 1 pc  | 
| 
 15  | 
 Handy-case  | 
 1 pc  | 
| 
 16  | 
 Serial printing line(optional)                                        □  | 
 1 pc  |