Summary of RC905-EE1
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1 rc905-ee1 ethernet to e1 interface converter (rev.B) user manual.
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2 contents chapter 1 rc905-ee1(rev. B) overview…………….…………….. 3 chapter 2 operating instruction………………………...…….………. 4 chapter 3 connection………………..………………….………….…. 11 chapter 4 troubleshooting………………………………………….. 12.
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3 chapter 1 rc905-ee1 rev.B overview modification of rev. B (for the users of rc905-ee1 (rev.A), if you are new user, please ignore it): 1. Please be informed for the old customers that we’ve altered the definition of the 1 st , 2 nd and 3 rd bit of sw2 switch on the bottom. 2. The duplex auto-negot...
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4 chapter 2 operating instruction i. Introduction of front panel: z the definitions of indicators are as follows e1 link indicators: los (red) loss of receive signal alarm at e1 link; when e1 link is working properly, it is off. Ler (red) fault alarm of receive signals at e1 link; on fractional e1 p...
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5 fdx(green) when the ethernet link is working on full duplex mode, it is on; in the half duplex mode, when the collision occurs, it is flashing. Power indicators: pwr(green) when power supply is working properly, it is on. Z definitions of the interfaces e1 interfaces tx bnc connector 75ohm unbalan...
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6 1. Technical specifications of ethernet interface uses 5-cat cable for 10base-t unshielded twisted pair rj-45 connector and it can transmit up to 100 meters. Supports ieee 802.3 protocol and full/half duplex auto-negotiation supports fixed duplex mode, when auto-negotiation fails supports ieee 802...
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7 it is needed to set up the ethernet port working status of connected switches, hubs, or nics according to following table: port of remote-site equipment switch setup of local equipment actual working mode 10/100m auto-negotiation any 10m full duplex fixed 10m half duplex off (default) 10m half dup...
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8 off= no loop back. When equipment is working in normal status, it should be off. This bit of dip-switch can be set to test link status only when the equipment works in master clock mode and on fractional e1 pattern. Whether the remote-site loop-back is successful or not is judged by the rlp yellow...
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9 0 0 1 0 1 5 * 64 k = 320 k 0 0 1 1 0 6 * 64 k = 384 k 0 0 1 1 1 7 * 64 k = 448 k 0 1 0 0 0 8 * 64 k = 512 k 0 1 0 0 1 9 * 64 k = 576 k 0 1 0 1 0 10 * 64 k = 640 k 0 1 0 1 1 11 * 64 k = 704 k 0 1 1 0 0 12 * 64 k = 768 k 0 1 1 0 1 13 * 64 k = 832 k 0 1 1 1 0 14 * 64 k = 896 k 0 1 1 1 1 15 * 64 k = 9...
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10 6 th bit pcm 31/30 selection dip-switch at fractional e1 pattern. On=pcm30 mode also called fas+cas mode. Off=pcm31 mode, also called fas only mode (default mode). This bit setting of dip-switch of two interoperated interface converters should be the same; otherwise the equipment will not work pr...
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11 ts[0] ts[1] …… ts[n] …… ts[31] v.35 bandwidth z timeslot occupation on the pcm30 mode on the pcm31 mode, n≤30, the 0 and 16 th timeslots are occupied by the system. N is counted from the 1 st timeslot. If n is bigger than 16, it will skip over 16 th timeslot. Ts[0] ts[1] …… ts[16] …… ts[n+1] …… t...
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12 chapter 3 equipment connection i. Make sure e1 link cable matches the connected equipment. If the equipment connected with rc interface converters in e1 link are comprised of such equipment as pdh, sdh, etc., please refer to the manuals of these equipment for the type, definition and line impedan...
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13 notice: when connecting the twisted pair cables, td and td should be twisted as a pair, and rd and rd too. V. Rc905 ethernet to e1 interface converters should be utilized in pairs in point to point mode. It cannot be interconnected with third party ethernet to e1 interface converters. Vi. Install...
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14 chapter 4 troubleshooting if there is any problem during installation and application please try to solve it according to the following suggestions. If it is not solved yet, please contact technical staff for support. I. Power indicator pwr is off there is fault with power supply system. Ii. Ethe...
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15 if the e1 link is provided by other equipment, within the first several minutes after the power supply is applied, ler alarm indicator may be flashing, and this is in normal status. Please wait for a while, the alarm will gradually disappear. If ler is flashing for a very long time, the link is i...